Answers
In the early stages of the formation of an organism, cells are the same and are pluripotent, which means, they can differentiate into different cell types, such as muscle cells (myocytes), fibroblasts, neurons, among others.
For pluripotent cells to differentiate into a cell, specific genes must be silenced, while others must be functioning. For this reason, the regulation of gene expression is important, as it controls which genes will be active and which genes will be silenced, and therefore controls cell differentiation.
Related Questions
Which international organization had the goal of ending smallpox?
A.World Health Organization
B. Organization of American States
C.World Trade Organization
D. North Atlantic Treaty Organization
E.US Olympic Committee
Answers
Answer: World Health Organization.
Explanation:
1. Some human societies have lifestyles that are sustainable, while others do not.
a. Describe how living near water can lead to a more sustainable lifestyle. (0.5
point)
Answers
Sustainable living is the attempt to reduce the use of natural resources like fossil fuels, forests, and others by the human society so that these resources remain available for future generation.
It is associated with maintaining the balance in the ecological, economical and societal needs to lead a healthy lifestyle. As it mainly emphasizes over the protection of the environment then it is also called as green living.
An individual who pursues a lifestyle where he/she is concerned of using the resources in a limited quantity so the basic requirement of his/her is fulfilled along with preserving the remaining resources for the coming generation so that their basic requirements could be met, is following a sustainable living.
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What is one defining feature of a prokaryotic cell?
A.cytoplasm surrounds organelles
B.have a cell wall outside plasma membrane
C.organelles are not membrane-bound
D.membrane-bound organelles
Answers
Answer:
B. have a cell wall outside plasma membrane
Explanation:
I love memorizing articles on subjects I enjoy to help answer and solve questions like these, this one is from bio.libretexts.org, and I really hope it can help:
"The Prokaryotic Cell;
They do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid. Most prokaryotes have a cell wall outside the plasma membrane."
Have a nice day! :)
4. what is the role of cardiolipin in the inner mitochondrial membrane? (tip: check the published als3 slides for cardiolipin related information)
Answers
cardiolipin in the inner mitochondrial membrane increase the membrane fluidity. cardiolipin is a phospholipid which are building blocks of membranes.
The inner mitochondrial membrane is where cardiolipin (CL), a particular phospholipid, is found and produced (IMM). It is now commonly acknowledged that CL is essential to a variety of reactions and activities that contribute to mitochondrial function and dynamics. Cardiolipin interacts with and is necessary for various IMM proteins, including the enzyme complexes of the electron transport chain (ETC) and ATP generation, as well as for their structure into supercomplexes, to function at their peak levels. Additionally, CL is crucial for mitophagy, several mitochondrial phases of the apoptotic process, mitochondrial biosynthesis, stability, and dynamics, as well as for the dynamics of mitochondrial membranes.
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All living organisms, from the smallest bacterium to the largest whale, share certain characteristics of life. For example, all living things are made of cells and they must reproduce to make the next generation. Without these characteristics, there is no life.Select the characteristics of life. Choose ALL that apply.responds to stimulimovementability to grow and changebreathingmaintains homeostasisobtain and use energy
Answers
Solution:
There are different characteristics that all living organisms share. Among them are:
1. Respond to their environment (respond to stimuli).
2. Growth and Change ( ability to grow and change).
3. Reproduction.
4. Maintain Homeostasis.
5. Have Complex Chemistry (this includes the ability to obtain and use energy (metabolism, catabolism).
6. Built of Cells.
now, movement is not a specific characteristic that defines life since, for example, a cat moves, but so does a car and a car is not a living organism. On the other hand, there are anaerobic and aerobic organisms, so "breathing" is not a characteristic that defines life completely.
So that, we can conclude that the correct answer is:
respond to stimuli
ability to grow and change
maintains homeostasis
Obtain and use energy (Biochemical reactions).
Select the photosynthetic molecule that gives halobacteria its unique color.
a.) Caratenoids
b.)Thylakoids
c.)Bacteriochlorophylls
d.)Bacteriorhodopsin
Answers
Answer:
Bacteriorhodopsin
Explanation:
Purple Halobacterium species owe their color to bacteriorhodopsin, a light-sensitive protein.
Which statement describes how a mutation in a gene that regulates the cell cycle may result in cancer?
A mutation occurs that prevents the cell from differentiating into a new type of cell
A mutation occurs that instructs the cell to begin binary fission to form identical cells
A mutation occurs that directs the cell to stop all functions which results in cell death
A mutation occurs that stops the cell from responding to signals that control cell growth
Answers
The statement that describes how a mutation in a gene that regulates the cell cycle may result in cancer is: mutation occurs that stops the cell from responding to signals that control cell growth.
MUTATION:
Mutation is the process by which the nucleotide sequence of a gene is altered or changed due to a mistake during replication or a mutagen. The cell cycle contains certain regulatory mechanism that controls the rate at which division occurs in a cell. Without this mechanism, cell division occurs abnormally leading to cancerous cells. Mutation in the cell cycle is one reason that could bring about mutation in a cell. Therefore, the statement that describes how a mutation in a gene that regulates the cell cycle may result in cancer is: mutation occurs that stops the cell from responding to signals that control cell growth.Learn more at: https://brainly.com/question/4347425?referrer=searchResults
What are the three main types of symbiotic relationships and give one example of each?
Answers
Three main types of symbiotic relationships are-
MutualismCommensalismParasitism Describe the term symbiotic relationships and its types?A close interaction between two species, and in at minimum one species gains, is referred to as symbiosis. The relationship with the other species could be either favorable, negative, or neutral. Symbiosis can be divided into three categories: parasitism, commensalism, and mutualism.Mutualism:
A symbiotic relationship that benefits both species profit is called mutualism. Goby fish as well as shrimp are an illustration of mutualism. The fish and the virtually blind shrimp spend the good deal of time together. Fish and shrimp coexist in a hole that shrimp keeps in the sand. The fish warns the shrimp with some of its tail when a predator is close by. Then, until the predator has left, both fish plus shrimp withdraw to the burrow. The shrimp learns of impending peril from their connection.To know more about the symbiotic relationships, here
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There are 40 chromosomes in germ cells of a ferret. How many sex chromosomes are there in a ferret's ovum?
Answers
Answer:
Explanation:
In a mitotic cell division, the number of chromosomes remains constant. It is so because the chromosomes are replicated to produce chromatid which during cell division is equally distributed in all the daughter cells thereby preserving the chromosome number.Both sperm cell and ovum have 23 chromosomes each. It is the fusion of both at fertilization that brings about 46chromosomes seen in somatic cells. These chromosomes are 22pair somatic chromosomes and a pair of sex chromosome (I.e XX or XY).The cells of the body have a diploid number of chromosomes (2N). The diploid number is usually double the haploid number (1N), so if the haploid number of chromosomes is 20, then 2x20=40. So the answer either 40 or 36
To determine the number of sex chromosomes that are there in a ferret's ovum is 2 sex chromosomes.
Given the following data:
Number of chromosomes = 40 chromosomes.Sex chromosomes can be defined as a pair of chromosomes that are responsible for determining the gender of a living organism i.e whether an organism is either male or female.
To determine the number of sex chromosomes that are there in a ferret's ovum:
Mathematically, the number of chromosomes in an organism is given by the formula:
\(Chromosomes = 2N\)
Where:
N is the number of sex chromosomes.Substituting the given parameter into the formula, we have;
\(40 =2N\\\\N=\frac{40}{2}\)
N = 2 sex chromosomes
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PLEASE HELP I WILL DO ANYTHING PROKARYOTIC BOTH OR EUKARYOTIC
Answers
Answer:
The explanation will be filled down below
Explanation:
Prokaryotic: I could barely read anything do you think you could take a screenshot from the computer and post it on brainly?
Eukaryotic: I could barely read anything do you think you could take a screenshot from the computer and post it on brainly?
Both: I could barely read anything do you think you could take a screenshot from the computer and post it on brainly?
which of tge following is true about Earth's temperatures?
Answers
Answer:
Water vapor and clouds are the major contributors to Earth's greenhouse effect
Explanation:
1. A. Describe the light reactions of photosynthesis, indicating how
photosystems I and II function to capture light energy and contribute tothe formation ATP and reducing power and indicating the source of
reductant, and products formed.
Answers
Answer: The process is reversed. Photosystem ll happens before photosystem l. I know that's weird but it's true. In photosystem ll which happens first it makes the energy carriers for ATP Synthase to happen in Photosystem l which is the next phase. Hope this helped!
Explanation:
DNA is formed using four kinds of base subunits. In a double-stranded segment of DNA, the percentage of the base C is 18%. What is the approximate percentage of base T?
Answers
Answer:
The correct option is C 32%
According to Chargaff’s rule in a DNA molecule A = T and G = C and A + G + C + T = 100%. Here cytosine (C) is 18% hence G = 18%
∴
A + T = (100 – 36)%
∴
A + T = 64%
∴
A = 32%
Explanation:
The scientific method of science
Answers
The scientific method of science is a systematic approach to investigating phenomena and acquiring knowledge through observation, experimentation, and analysis. It involves formulating hypotheses, testing them, and drawing conclusions based on the results of those tests. By following the scientific method, scientists can minimize bias and errors in their research, and ensure that their findings are reliable and objective. This approach has been instrumental in advancing our understanding of the natural world, and has led to countless technological and medical breakthroughs.
predict how the average life span of a nerve cell located in the brain differs from the average life span of a red blood cell.
Answers
The cells of the brain, particularly the neurons of the cerebral cortex, last a lifetime. The life span of a red blood cell, however, is approximately 120 days.
Neurons (additionally referred to as neurones or nerve cells) are the fundamental units of the mind and frightened system, the cells responsible for receiving sensory enter from the outside global, for sending motor commands to our muscular tissues, and for transforming and relaying the electrical indicators at each step in between. more than that, their interactions define who we are as human beings. Having stated that, our roughly one hundred billion neurons do have interaction closely with different cell sorts, broadly labeled as glia (those may additionally honestly outnumber neurons, although it’s no longer definitely recognized).
The introduction of latest neurons inside the mind is referred to as neurogenesis, and this may happen even in adults.
RBC a sort of blood cell this is made inside the bone marrow and discovered inside the blood. purple blood cells contain a protein known as hemoglobin, which consists of oxygen from the lungs to all parts of the frame. Checking the quantity of pink blood cells within the blood is generally a part of a whole blood cellular (CBC) take a look at. it can be used to search for situations inclusive of anaemia, dehydration, malnutrition, and leukaemia. additionally known as erythrocyte and RBC
.
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this molecule is split into oxygen
protons, and electrons during light
dependent reactions is called?
Answers
Answer:
Oxygen and hydrogen ions are also formed from the splitting of water. To replace the electron in the reaction center, a molecule of water is split. This splitting releases an electron and results in the formation of oxygen (O2) and hydrogen ions (H+) in the thylakoid space.
Which organisms can reproduce using the process of fragmentation
Answers
Fragmentation is a form of asexual reproduction and is seen in annelids, fungi, cyanobacteria, sponges, and flatworms.
In Fragmentation, an organism divides itself into a number of fragments. It occurs when an organism completely breaks down independently irrespective of the other parts. Each one of these fragments matures into fully grown adults that are clones of the original organism.
Asexual reproduction usually involves the participation of a single parent alone can produce new offspring. The newly produced individual is genetically identical to one another and its parent. Both multicellular and unicellular organisms divide by fragmentation which is asexual reproduction.
Fragmentation is the most common method of reproduction in lower invertebrates. It is seen in many organisms including filamentous cyanobacteria, algae, lichens, molds, many plants, and animals such as flatworms, annelid worms, sponges, and sea stars.
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The organisms that can reproduce by fragmentation are Option d Sponges and Sea anemones.
Fragmentation is a form of asexual reproduction in which an organism breaks into two or more fragments, and each fragment develops into a new individual. Both sponges and sea anemones are examples of organisms that exhibit this mode of reproduction.
Sponges are simple multicellular animals that lack true tissues and organs. They possess a porous body structure, and when a sponge is fragmented, each fragment has the potential to develop into a new sponge through regeneration. These fragments contain specialized cells called archaeocytes that can differentiate into various cell types required for the formation of a new sponge.
Sea anemones, on the other hand, are marine animals belonging to the phylum Cnidaria. They have a cylindrical body with tentacles surrounding their mouth. When a sea anemone is fragmented, each piece can regenerate into a complete individual. The process involves the differentiation of cells within the fragments, leading to the development of new tentacles, body parts, and eventually a mature sea anemone.
Both sponges and sea anemones have remarkable regenerative abilities, allowing them to reproduce through fragmentation. This form of asexual reproduction enables them to colonize new areas, expand their population, and adapt to changing environmental conditions. Therefore the correct option is D
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The Question was Incomplete, Find the full content below :
The organisms which can reproduce by fragmentation are:
(a) Corals and Sponges
(b) Corals and Spirogyra
(c) Sea anemone and Spirogyra
(d) Sponges and Sea anemones.
What are membranes like the cell membrane allows some molecules to pass through a call
Answers
Membranes, like the cell membrane, are essential parts of cells because they serve as a barrier to control how chemicals enter and exit the cell.
Membranes are essential components of cells. They form a barrier between the interior of the cell and the outside environment and regulate the passage of molecules in and out of the cell. The cell membrane is a type of membrane that allows some molecules to pass through a cell. It is a selectively permeable membrane that allows only certain substances to pass through. The structure of the cell membrane is composed of a lipid bilayer, which consists of two layers of phospholipids. These phospholipids have a hydrophilic head and a hydrophobic tail. The hydrophilic head is attracted to water and the hydrophobic tail repels water. This arrangement allows the cell membrane to form a barrier that separates the inside of the cell from the outside environment. The cell membrane also contains proteins and other molecules that allow it to regulate the passage of molecules in and out of the cell. In summary, membranes such as the cell membrane are critical components of cells and act as a barrier to regulate the passage of molecules in and out of the cell.For more questions on Membranes
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What does the moon not have on its own?
O rotational period
O gravity
O revolution period
Olight
Answers
The Moon can only be seen as a result of the Sun's light reflecting off it. It does not produce any light of its own.
The moon does not produce any light on its own, and can be seen of reflection from sun light
Difference betwden PNS and CNS
Answers
Answer:PNS (Peripheral Nervous System) and CNS (Central Nervous System) are two main divisions of the nervous system in the human body.
Differences:
Location: CNS is located inside the skull and vertebral column, while PNS extends outside of the CNS to the rest of the body.
Function: CNS is responsible for processing and coordinating information from all parts of the body, while PNS carries signals from the CNS to the body and from the body to the CNS.
Structures: CNS consists of the brain and spinal cord, while PNS is composed of sensory and motor neurons that connect the CNS to the rest of the body.
Type of Neurons: CNS is primarily composed of interneurons, while PNS contains both sensory and motor neurons.
Control: CNS has complete control over the body, while PNS carries out the orders of the CNS.
Similarities:
Both PNS and CNS are essential for the proper functioning of the nervous system.
They both play a crucial role in transmitting and processing sensory information.
Explanation:
PNS (Peripheral Nervous System) and CNS (Central Nervous System) are two main divisions of the nervous system in the human body.
Differences:
Location: CNS is located inside the skull and vertebral column, while PNS extends outside of the CNS to the rest of the body.
Function: CNS is responsible for processing and coordinating information from all parts of the body, while PNS carries signals from the CNS to the body and from the body to the CNS.
Structures: CNS consists of the brain and spinal cord, while PNS is composed of sensory and motor neurons that connect the CNS to the rest of the body.
Type of Neurons: CNS is primarily composed of interneurons, while PNS contains both sensory and motor neurons.
Control: CNS has complete control over the body, while PNS carries out the orders of the CNS.
Similarities:
Both PNS and CNS are essential for the proper functioning of the nervous system.
They both play a crucial role in transmitting and processing sensory information.
The nervous system has two different major parts.
The two parts are the central nervous system (CNS) and the peripheral nervous system (PNS).
The CNS includes the brain and the spinal cord and is the site of information processing and control whereas the PNS comprises of all the nerves of the body associated with the CNS (brain and spinal cord). All body sensations and changes in our external environment are relayed from receptors and sense organs to the CNS to be interpreted. The PNS can be divided into two subcategories: the sensory system, which consists of afferent or sensory neurons that convey information from receptors in the periphery of the body to the brain and spinal cord, and the motor system, which consists of efferent or motor neurons that convey information from the brain and spinal cord to muscles and glands. In CNS the groups of neurons are called nuclei whereas in PNS the groups of neurons are called ganglia. In CNS brain in vertebrates is protected by the cranium (brain box) which is present in the skull and spinal cord is protected by vertebral column (back bone) whereas in PNS such protective structures are not found.
HOPE IT HELPS YOU PLEASE MARK IT AS BRAINLIESTQue es la biología????
Answers
La Biología es un area de estudio encargada de analizar e investigar el funcionamiento de los sistemas biologicos los cuales incluyen tanto seres vivos como virus.
Que es la biología?La biología es un campo fundamental dentro de las ciencias naturales que estudia los seres vivos y su relación con el entorno o ambiente, el cual es definido como ecosistema.
En conclusión, la Biología es un area de estudio encargada de analizar e investigar el funcionamiento de los sistemas biologicos los cuales incluyen tanto seres vivos como virus.
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adolescence and puberty meaning
Answers
Puberty is the time in which a child's sexual and physical characteristics mature. It occurs due to hormone changes.
Adolescence is the period between puberty and adulthood.
Deer mice are usually dark brown and live in forests with dark soil. However, the deer mice in the Sand Hills of Nebraska are lighter brown and live in an area with light, sandy soil.
Based on this information, what ,begin emphasis,most,end emphasis, likely caused the change in the Sand Hills deer mice?
Answer options with 4 options
A.
Lighter colored mice were preferred by females.
B.
Lighter colored mice came from snowy habitats in the north.
C.
Lighter colored mice had more dominant genes in their new habitat.
D.
Lighter colored mice were more likely to avoid predators and to reproduce.
Answers
Lighter colored mice were more likely to avoid predators and to reproduce. Therefore, option (D) is correct.
The lighter brown coloration of the deer mice in the Sand Hills of Nebraska is likely an adaptation that provides them with a survival advantage in their specific habitat. The light, sandy soil in the area may offer better camouflage for lighter colored mice, making them less visible to predators and increasing their chances of survival.
As a result, these mice would have a higher likelihood of successfully reproducing and passing on their lighter coloration traits to future generations.
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In the diagram below, which organelle is the cell nucleus, which stores the
cell's genetic material?
Answers
Answer:
Answer is B
Explanation:
The genetic material of the cell is generally stored in the nucleus of the cell. The B structure in the diagram shows the nucleus which is the main location of storage of genetic material.
What is genetic material?Genetic material is the substance in the cell nucleus that is responsible for heredity. It can be DNA in many organisms and in some organisms, it can be RNA also.
The genetic material of the cell is generally stored in the nucleus of the cell.
The B structure in the diagram shows the nucleus which is the main location of storage of genetic material.
Thus, the correct option is B.
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Rainforests produce oxygen, remove carbon dioxide from the air, and are home to many rare species. Parts of rainforests are destroyed every year so that the land can be used for agriculture. Once cut down, the rainforests can no longer be used as sources of wood or of animals to hunt for meat.
A conservation society wanted to convince a town in Paraguay to protect an area of local forest. The society presented data from the following cost/benefit analysis for three proposed sites. The town agreed to let one of the three areas of forest stand if the society paid the difference between the local value of the forest and the value of the same land as a farm.
Fill in the missing data and answer the question that follows.
Area
Forest
Area Total Value
as Forest Value as
Farm Land Local Value
as Forest Difference in
Local Value
#1 14 km2 12 km2 $1.8 million $115,200 $25,200 $90 thousand
#2 13 km2 9 km2 $1.6 million $84,500 $22,500 $ ? thousand
#3 16 km2 11 km2 $1.4 million $37,100 $28,100 $ ? thousand
If the conservation society wants to save the most forest per dollar, which site should they pay for?
#?
Answers
The conservation society should pay for site #2 because its it has the highest difference in local value.
Which forest area should the conservation society pay for?To determine which forest area the conservation society should pay for to save the most forest per dollar, we need to calculate the difference in local value for each area.
For site #2, difference in local value will be:
= $84,500 - $22,500.
= $62,000
For site #3, the difference in local value will be:
= $28,100 - $37,100
= $9,000.
Therefore, the conservation society should pay for site #2 because its it has the highest difference in local value.
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I’ll give BRAINLIST??What organs/organs systems does schizophrenia affect and how does it affect it?
Answers
Answer: Schizophrenia is considered a disorder of the mind, influencing the way a person thinks, feels and behaves.
Explanation: Physical health is also important because if it is compromised, many of the benefits of improved mental health will be offset. Compared with the general population, schizophrenia patients are at increased risk of weight gain, abdominal obesity, diabetes, metabolic syndrome, and cardiovascular disease.
Answer:
Schizophrenia involves a range of problems with thinking (cognition), behavior and emotions. Signs and symptoms may vary, but usually involve delusions, hallucinations or disorganized speech, and reflect an impaired ability to function. Symptoms may include: Delusions.Schizophrenia is associated with changes in the structure and functioning of a number of key brain systems
Explanation:
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? Question is a to A population of organisms is represented by three black marbles and three gray marbles. The gray organis have a beneficial genetic mutation. Draw a model that shows natural selection over three generations of these organisms. o d. і т Eine Width: 2 pt an re Key organism with original trait organism with beneficial mutation
Answers
Question:
A population of organisms is represented by three black marbles and three gray marbles. The gray organisms have a beneficial genetic mutation. Draw a model that shows natural selection over three generations of these organisms
Answer:
lThe population will suffer Directional selection. In the attached files you will find the drawing of the model.
Explanation:
Natural selection is the result of the phenotype-environment interaction which determines gene destiny in space and time, selecting beneficial alleles and increasing their frequency in the population. Among other types of natural selection, we can find the directional selection.
Directional selection increases in the proportion of individuals with an extreme phenotypic trait, in this case, the color of the organisms. This selection presents more frequently in those cases in which interactions between living organisms and the environment modify in the same direction.
Directional selection leads to the fixation of the beneficial allele and the consequent loss of the other one. In this case, for example, the gray suffered a beneficial mutation, and after three generations the allele codifying for this mutation shows an increase in its frequency, approaching fixation.
How would transcription be affected if a gene that needed to be expressed was missing its promotor?
Answers
Answer:
it can't be used to make a protein in that cell.
Explanation:
If a gene is not transcribed in a cell, it can't be used to make a protein in that cell. If a gene does get transcribed, it is likely going to be used to make a protein (expressed). In general, the more a gene is transcribed, the more protein that will be made.
The transcription is affected as when the gene has not been transcribed the protein will not make. When a gene is transcribed, protein synthesis can happen.
What is gene transcription?Gene expression begins with transcription. To create an RNA molecule, the DNA sequence of a gene must be copied. RNA polymerases, which join nucleotides to create an RNA strand, carry out transcription (using a DNA strand as a template).
A gene cannot be used to produce a protein in a cell if it is not transcribed there. If a gene gets transcribed, it will probably be used to produce a protein (expressed). In general, more protein will be produced the more a gene is transcribed.
Therefore, the transcription is impacted since the protein cannot be produced if the gene is not transcribed. Protein synthesis can take place when a gene is transcribed.
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which event contributed to life evolving on Earth
Answers
Answer:natural selection
Explanation:
What is the diference between the axial and appendicular skeleton
Answers
Answer:
The axial skeleton makes up our central axis and consists of the following bones: skull, vertebrae, ribs and sternum. The appendicular skeleton consists of the limbs and girdles.
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Explanation: