A cell with 18 chromosomes undergoes meiosis. How many chromosomes would each daughter cell contains?
Answers
Answer:
18
Explanation:
Related Questions
What would be the consequences in successive generations of offspring if the chromosome number were not reduced during meiosis?
Answers
If the chromosome number were not reduced during meiosis, it would result in polyploidy, the condition of having multiple sets of chromosomes in an organism's cells. Polyploidy can occur through autopolyploidy, where an organism has multiple sets of chromosomes from the same species, or allopolyploidy, where an organism has multiple sets of chromosomes derived from different species.
Polyploidy can have significant consequences for offspring in successive generations. It often leads to larger and more robust individuals with increased vigor and adaptability. Polyploidy can cause reproductive isolation between polyploid and diploid individuals, potentially leading to the formation of new species.
It can also result in altered gene expression, changes in reproductive behavior, and reduced fertility due to meiotic problems. Polyploidy has played a role in plant speciation and can contribute to the genetic diversity and adaptability of populations.
Overall, if chromosome number were not reduced during meiosis, the occurrence of polyploidy would have far-reaching effects on the phenotype and evolutionary potential of offspring, influencing their reproductive success, genetic interactions, and potential for adaptation to changing environments.
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what types of cells are made by meiosis
Answers
Answer:
Meiotic cells
Explanation:
Answer:
The cells made by meiosis genetically differ from the ones made by mitosis. When a cell is created by meiosis, the cell's chromosomes are greatly reduced thus producing four Gamete cells. Gamete cells are reproductive cells and are used either as sperm or egg cells.
(Chromosomes: A thread-like structure of DNA (nucleic acids and proteins) that carries genes.
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Bacteriophage replication differs from animal virus replication because only bacteriophage replication involves.
Answers
Bacteriophage replication differs from animal virus replication because only bacteriophage replication involves attachment to specilic receptors_ assembly of viral components.
What is the difference between a bacteriophage and a virus ?An organism that can infect cells. Plant viruses also infect plant cells, and human viruses also infect human cells. Bacteriophage - A phage is another name for a virus that affects bacteria. DNA. The molecule that contains all the genetic material required to make proteins
The capsid of the majority of animal viruses enters the host cell, in contrast to bacteriophages, which only allow their DNA or RNA to enter the host cell.While animal viruses use two different techniques for release depending on the kind, bacteriophages are released by lysis of the host cell animal virus are released by lysis, and enveloped animal virus are released by budding mechanism).Learn more about Bacteriophage and Virus here:
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Which cell type is produced by mitosis?
A. Haploid
B. Diploid
C. Sperm
D. Gamete
Answers
Answer: B
Explanation:
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
Mitosis produces diploid cells with two sets of chromosomes. So the correct option is B.
Why does mitosis produce diploid cells?The process of a cell in which its chromosomes are replicated and segregated is called mitosis. This process divides the cell with each having an equal amount of genetic material and identical nuclei.
Mitosis has two steps - the first is karyokinesis which means the division of the nucleus and the second is cytokinesis which means the division of the whole cell. The result is the production of 2 daughter cells which are completely genetically identical to each other.
To give rise to an identical daughter cell, each chromosome is copied and each daughter cell receives one of the copies. The parent cell and the resulting daughter cells both remain diploid.
In contrast to this, meiosis produces haploid cells with one set of chromosomes. Meiosis is only performed by the gametes but mitosis is performed by the somatic cells of the body.
Therefore, the correct option is B.
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Which distance is the greatest
Answers
Answer:
you have to be more specific we don't know what you are talking about.
Explanation:
which of the following statements is true with respect to the genetic risk of cancer? group of answer choices an individual's risk of developing cancer is influenced by genetic as well as environmental and lifestyle factors. hodgkin's disease is directly caused by exposure to radiation and is not linked to heredity. scientists think that the majority of cancer types are hereditary. women who inherit the brca1 or brca2 genes will develop breast cancer by age 50.
Answers
An individual's risk of developing cancer is influenced by genetic as well as environmental and lifestyle factors is true with respect to the genetic risk of cancer. Option (1)
Cancer cannot be inherited by a kid from a parent. Moreover, tumor cell genetic alterations are not transmissible. Yet, if a genetic alteration that raises the risk of cancer is found in a parent's sperm or egg cells, it can be passed down (inherited).
What exactly is a cancer risk gene?The p53 or TP53 gene is the one that is most frequently altered in cancer patients. Almost 50% of tumors have a defective or absent p53 gene. Most mutations in the p53 gene are acquired. Although germline p53 mutations are uncommon, those who have them have an increased chance of developing a wide range of cancers.
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which of the following statements is true with respect to the genetic risk of cancer? group of answer choices
an individual's risk of developing cancer is influenced by genetic as well as environmental and lifestyle factors. hodgkin's disease is directly caused by exposure to radiation and is not linked to heredity. scientists think that the majority of cancer types are hereditary. women who inherit the brca1 or brca2 genes will develop breast cancer by age 50.A nonnative species of ant is introduced into a woodland ecosystem. Which situation would most likely stop the species from becoming invasive?
A.The nonnative ant species tolerates the woodland's abiotic factors.
B.The nonnative ant has no predators in the woodland ecosystem.
C.There are no other ant species living in the woodland ecosystem.
D.Native ant species outcompete the nonnative ant species
Answers
A) Even if the ant species was tolerant to abiotic factors, they would still be growing at fast speeds, becoming invasive.
B) With no predators, the population would skyrocket, eventually becoming and invasive species.
C) With no other ants, there is no competition, making the ant population skyrocket as well, becoming invasive.
D is the answer.
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In this investigation, e°cell will be measured with a voltage probe. What is e°cell?.
Answers
The electromotive force (E°cell), also known as cell voltage or cell potential, exists between two half-cells. A reaction's E°cell determines how much force electrons have to move across the system.
In electrochemistry, what is an E cell?An electrochemical cell is a structure that can produce electrical energy from chemical processes taking place inside of it or use external electrical energy to speed up chemical reactions taking place inside of it. These systems have the ability to transform chemical energy into electrical energy or the other way around.
E cell Class 12: What is it?Eocell is an acronym for electrochemical cell. ECathode is short for the cathode's standard reduction potential. Eanode is short for the anode's average reduction potential. The reaction is possible if Eocell is positive. The reaction won't occur if Eocell is negative.
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During photosynthesis, the plants that the fish eat use ___ to produce ___. Plants ___ in order to perform photosynthesis. ___ cycle(s) carbon through Earth's spheres. Energy is constantly needed to cycle materials, and ultimately, all this energy comes from ___.
1. glucose and oxygen or water and carbon dioxide
2. glucose and oxygen or water and carbon dioxide
3. capture sunlight or block sunlight
4. Both photosynthesis and cellular respiration or photosynthesis or cellular respiration
5. food or the sun
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You cross nonpure tall plants (Tt) and produce 200
offspring. Which of the following statements about
the offspring is correct?
A. All of the offspring will definitely be tall.
B. 150 of the offspring will definitely be tall.
C. There is a 75% chance that each offspring
will be tall.
O D. There is a 25% chance that each offspring
will be tall.
Answers
Answer:
C is the best answer
Explanation:
the dominate trait is in 3 of the four boxes
There is a 75% chance that each offspring will be tall. Therefore option C is correct.
When you cross non-pure tall plants (Tt), you are dealing with a heterozygous genotype, meaning the plants have one dominant (T) and one recessive (t) allele for the height trait.
The dominant allele (T) is responsible for the tall phenotype, while the recessive allele (t) leads to short plants. In this case, 75% of the offspring will likely receive the dominant allele from at least one parent (Tt or TT) and therefore be tall.
The remaining 25% will inherit the recessive allele from both parents (tt) and be short. This is based on the principles of Mendelian genetics and the Punnett square.
Therefore option C There is a 75% chance that each offspring will be tall is correct.
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Which of the following organelles is the site of aerobic respiration?" Nucleus Cytoplasm Chloroplast Mitochondrion
Answers
Which statement below is true regarding DNA
or RNA?
A)There are uracil nitrogen bases in DNA.
B)A DNA molecule can include the nitrogen bases of
A, U, G. and C.
C)DNA can be found both inside and outside the
nucleus.
D)A RNA molecule can include the nitrogen bases of
A, U, G. and C.
Answers
Answer:
B)A DNA molecule can include the nitrogen bases of A, U, G. and C.
Explanation:
DNA, or deoxyribonucleic acid, is a double-stranded molecule that contains the genetic instructions for the development and function of all living organisms. The structure of DNA is made up of two strands of nucleotides, which are the building blocks of DNA. Each nucleotide is composed of a sugar molecule, a phosphate group, and one of four nitrogenous bases: adenine (A), thymine (T), guanine (G), and cytosine (C). These four bases are the "letters" that spell out the genetic code in DNA.
RNA, or ribonucleic acid, is a single-stranded molecule that plays a central role in the biochemistry of cells, serving as a template for the synthesis of proteins. RNA is very similar to DNA, but there is one key difference: RNA contains the nitrogenous base uracil (U) instead of thymine (T). So the bases are A, U, G, and C.
So statement B is true that DNA molecules can include the nitrogen bases of A, T, G, and C, and statement D is false as RNA molecules can include the nitrogen bases of A, U, G, and C.
Every organism has a ______ number of chromosomes.
Answers
Answer:
46
Explanation:
is the answer of this quastion
n the 1600's, Robert Hooke, and English scientist, used a crude microscope to examine bits of cork. Cork is derived from the bark layer of certain trees. Upon seeing the cork under the microscope, Hooke named the spaces within the cork 'cells', because they looked like empty rooms of a monastery. Although he coined the term cell, an ironic feature of cork is that it is dead plant material. Knowing this, what feature of cells would Robert Hooke NOT have been able to observe under the microscope while looking at cork?
Answers
Answer:
the answer is C: he would not be able observe cork cells dividing to form new cells
Explanation: i just got it wrong from the other guy
Answer:
The correct answer is C.
Explanation:
When you observe something through a telescope, you manage to see what it is made. Therefore, when you see what it is made of, you can rule out some answers. C is the right answer because cells are the smallest living thing,and cannot be seen unless using an extremely powerful microscope.
Pls I need help with this question
Answers
Lipids provide long term energy for the body while carbohydrates provide quickly available energy
Look at the four devices below.
flashlight
lawn mower
solar calculator
desk lamp
Which device uses light as it's source on energy? ty if youhelp
Answers
every other option can be charged using batteries or power.
What part of the leaf contains chlorophyll for producing energy for the plant?
Answers
Answer:
your answer would be the margin
Explanation:
In plants, the process of photosynthesis takes place in the mesophyll of the leaves, inside the chloroplasts. Chloroplasts contain disc-shaped structures called thylakoids, which contain the pigment chlorophyll. Chlorophyll absorbs certain portions of the visible spectrum and captures energy from sunlight.
okay thanks but who guessed I don't wanna fail please just tell me the truth ill do anything if your right
Answers
What Is the location of the instructions that code for traits?
Answers
Answer:
Traits are coded for in DNA, specifically in genes.
Explanation:
DNA, as you probably already know, is made up of long sequences of nucleotides of A's, T's, C's, and G's. When transcripted into mRNA and translated into proteins in ribosomes, the order of these nucleotides signal which amino acids to produce for the protein. Proteins are extremely important and have many roles throughout the body, which means they actualize the code of DNA into physical traits. I hope this helped.
Which three observations are caused by plate tectonics?
Answers
Answer:
mountain ranges. valleys. volcanoes. these can also cause earthquakes which will cause other things.
Explanation:
Jerry is planning a scientific investigation to test an idea he has about how the
growth of a pea plant is affected by soil temperature. Which step should he do
first?
A: Form the conclusion
B: Plan the experiment.
C: Create the hypothesis
D: Conduct the experiment.
Answers
Answer:
C
Explanation:
C: Create the hypothesis
Which statement describes the role of a mitochondrion in providing a body with energy? It stores glucose that is taken from food so that respiration can happen later. It combines blood and oxygen so that energy can be released from glucose. It is the site where oxygen combines with small molecules and releases large amounts of energy. It is the site where food is broken down into small molecules and amounts of energy.
Answers
Answer:
3. It is the site where oxygen combines with small molecules and releases large amounts of energy.
Explanation:
Mitochondria is a cell organelle
It produces ATP, which is considered as energy currency of cell.
Answer:
C
:D
Explanation:
what roles have inversions and translocations played in the evolutionary process? drag the terms on the left to the appropriate
Answers
Inversions and translocations have played significant roles in the evolutionary process.
Inversions are chromosomal rearrangements that involve breaking and rejoining within the same chromosome. Translocations, on the other hand, are rearrangements of chromosomes involving two different chromosomes. Inversions have contributed to the evolutionary process by altering the sequence of genes and introducing new gene arrangements.
They also play an essential role in the formation of species by preventing hybridization. Translocations have played a crucial role in creating new hybrid species, increasing the genetic diversity of the population, and providing the raw materials for natural selection. They have also been shown to be involved in the evolution of cancer cells.
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Which of these elements will successfully create a 1:1 bond with magnesium (mg) *select all correct answers*
Answers
Elements like oxygen and sulfur, which can accept two electrons and form a -2 charge, will successfully create a 1:1 bond with magnesium.
Magnesium (Mg) is an alkaline earth metal found in Group 2 of the periodic table. It has an atomic number of 12 and is known for its ability to form ionic compounds. To create a 1:1 bond, we need to consider the valence electrons and the bonding capacity of the other elements.
Magnesium has two valence electrons and tends to lose these electrons to achieve a stable electron configuration. When Mg loses two electrons, it forms a +2 charge (Mg²⁺). To create a 1:1 bond, the other element should ideally be able to accept two electrons, forming a -2 charge.
Some elements that can form a 1:1 bond with magnesium include:
1. Oxygen (O): Oxygen is in Group 16 of the periodic table and has six valence electrons. It needs two more electrons to achieve a stable configuration. When oxygen gains two electrons, it forms a -2 charge (O₂⁻), resulting in a 1:1 bond with magnesium (MgO).
2. Sulfur (S): Sulfur is also in Group 16, with six valence electrons. Similar to oxygen, it requires two more electrons to become stable. When sulfur gains two electrons, it forms a -2 charge (S₂⁻), leading to a 1:1 bond with magnesium (MgS).
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Match each part of a cell to its structural features.
Answers
Answer:
Explanation:
the picture is not given ty
In organ transplants, the body recognizes that the new organ is made of foreign cells. What kind of medicine would you give a patient to increase the chances of transplant success?
Answers
Answer:
immunosuppressant
Explanation:
After an organ transplant, you will need to take immunosuppressant (anti-rejection) drugs. These drugs help prevent your immune system from attacking ("rejecting") the donor organ. Typically, they must be taken for the lifetime of your transplanted organ.
All cells reproduce to make new cells. However, stem cells actually form many different types of cells. Adult stem cells can also repair tissues in the body.
Why is is it possible to carve ornaments out of gypsum?
Answers
Answer:
A very fine grained type of massive gypsum is called alabaster which can be used in making ornaments and in carvings. Large quantities of rock gypsum are mined in Barber and Marshall Counties.
It is possible to carve ornaments out of gypsum because it basically consists of fine-grained particles which have a high ability to adhesion and resists one dries. It holds the particles compactly when it completely dries.
What is Gypsum?Gypsum may be defined as a type of soft sulfate mineral which is significantly composed of calcium sulfate dihydrate. It possesses the chemical formula CaSO4·2H2O. It is widely mined and is utilized as a fertilizer and as the main constituent in many forms of plaster, blackboard or sidewalk chalk, and drywall.
Due to having these specific characteristics, gypsum is widely used to make ornaments through the process of carving. It contains a substance that easily gives structure to any ornament like pots, glass, decorative items, etc.
Therefore, gypsum basically consists of fine-grained particles which have a high ability to adhesion and resists dries.
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Manu wanted to verify if fertilizers help plants to grow well. He took a potted plant, mixed fertilizer with the soil and took good care of the plant. He also maintained a record of the growth of the plant. The error in Manu's experiment was
Answers
Answer: He didn’t grow a plant without fertilizer.
Explanation: Manu has nothing to compare his plant to. Meaning, he cannot prove that fertilizers help plants grow. He needs to grow a plant with and without fertilizer.
Which of the following describes an
estuary?
A. has different levels based on how much sunlight
reaches that depth and is the largest marine biome
B. located in the photic zone and warm tropical waters
with build up of many layers of dead cnidarians
C. found where land and water meet and is covered by
water at high-tide then dry at low-tide
D. where freshwater streams meet the ocean and is a
breeding and feeding spot for birds and fish
Answers
Answer:
D. where freshwater streams meet the ocean and is a breeding and feeding spot for birds and fish
Explanation:
Estuary is an area of freshwater where freshwater streams meet the ocean and also a breeding as well as feeding place for birds and fishes. This estuary is the place of habitat for large number of biotic factors includes plants and animals such as shrimp, fish, and oysters etc. The population of these animals are lower due to human activities that cause pollution in the estuary which leads to death of animals.
Answer:d
Explanation:
Which of the proteins below is(are) NOT made on the membrane-bound ribosomes of the RER?
A
Option A: peripheral proteins of the inner surface of the plasma membrane
B
Option B: soluble lysosomal proteins
C
Option C: vacuolar enzymes
D
Option D: proteins of the extracellular matrix
E
Option E: all of the choices are correct
Answers
The proteins that are not made on the membrane-bound ribosomes of the RER are proteins of the extracellular matrix (Option D).
What is the rough endoplasmic reticulum (RER)?The endoplasmic reticulum is a network of intracellular membranes involved in protein and lipid metabolism, calcium storage, and drug detoxification. The endoplasmic reticulum may be divided into the rough endoplasmic reticulum (RER), which is studded with ribosomes, and the smooth endoplasmic reticulum (SER), which is not studded with ribosomes.
The rough endoplasmic reticulum (RER) synthesizes proteins that will be transported out of the cell or to the plasma membrane, whereas the smooth endoplasmic reticulum (SER) synthesizes lipids and phospholipids that will be utilized by the cell or incorporated into the plasma membrane. The SER also contains enzymes that assist with the detoxification of certain medications and poisons.
Thus, the correct option is D.
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