Answer:
Incomplete dominance results from a cross in which each parental contribution is genetically unique and gives rise to progeny whose phenotype is intermediate. Incomplete dominance is also referred to as semi-dominance and partial dominance. Mendel described dominance but not incomplete dominance.
Explanation:
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Examples of things that can by determined by incomplete dominance physical characteristics such as hair color, hand sizes, and height.
4. Why cannot a dry seed germinate?
Answer:
no it cannot
Explanation:
as the seed does not have enough water to start germination
In a plant in which fuzzy leaves (f) are dominant over smooth leaves (), which of the following crosses will produce only offspring with smooth leaves.
a. ff x ff
b. ft x ff
c. ft * ft
d. FF * FF
Answer:
a
Explanation:
ff x ff is the cross that will produce only offspring with smooth leaves.
What is cross?Cross means breeding of parents to produce offspring.
What is produce?Produce means to generate.
What is offspring?Offspring is the product of a cross.
f is the recessive allele of smooth leaves whereas F is the dominant allele of fuzzy leaves.
So the cross ff will give all smooth leaves where as FF will give all fuzzy leaves.
Hence the correct option is (a).
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Grace is a pregnant woman in an area of Africa that is experienced many years of drought civil unrest and poverty Grace is underweight and has been unable to eat enough nutrients during her pregnancy based on your knowledge of Grace and her living condition which of the following situations is most likely to occur
The most likely situation to occur would be: Grace may be at an increased risk of complications during pregnancy and childbirth.
What is the pregnancy?Given that Grace is thin and has happened unable to eat enough vitamins during her gestation, her overall strength and happiness may be negotiated.
Malnutrition can bring about a range of adverse belongings on two together the mom and the cultivating fetus.The lack of approach to an enough and equalized diet, combined accompanying the disputing living environments in an area overwhelmed by dryness, civic unrest, and want, can increase the possibility of complexities during pregnancy.
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What does the hardy Weinberg principle relate to?
A) chances of survival of an organism
B) frequency of alleles in a population
C) natural selection in a species
D) causes of evolution among organisms
You tell a story to a second person who tells it to a third person, and so on. As the story is retold, changes are introduced. Over time, the number of changes increases. How is this process an analogy for what happens to DNA over time? (Just 2-3 sentences)
40 points to whoever responds first
Answer:
Use Analogies You tell a story to a second person who tells it to a third person, and so on. As the story is retold, changes are introduced. Over time, the number of changes increases.
The story changes over time because of the way the teller and the listener communicating. The DNA of a newborn baby is a combination of their mom and dad. Every time the DNA changes it's because there is a new combination of two people.
Cells having matched pairs of chromosomes are ____?
Diploid
Homozygous
Haploid
Homolgous
Homologous
Explanation:
Homo = same
Hap = half
Dip = full
Diploid = Full amount of chromosomes (Mitosis)
Homozygous = The same alleles
Haploid = Half the amount of chromosomes (Meiosis)
Homologous = The same chromosomes
A solution with pH 9 has ________________ times ____________________ OH- than a solution with pH 6.
Answer:
basic
Explanation:
ph value 9 base is ph value is 9and 20
You are doing an experiment in which you are using an in vitro translation system derived from rabbit reticulocytes, called a rabbit reticulocyte lysate, to translate mRNA in a test tube. The rabbit reticulocyte lysate contains ribosomes, translation initiation and elongation factors, tRNAs, aminoacyl tRNA synthetases, release factors, amino acids, and ATP. The lysate does not contain any mRNA, so you must add the mRNA you would like to translate to the system. A. When you analyze the proteins made from your lysate, you find that they are all only two amino acids long. At first, you think that there must be a mutation to a stop codon in the position of the third codon, so you do another experiment with a different mRNA. Again, all the newly synthesized proteins are only two amino acids long, so you conclude that there is a problem with some component in your lysate.
Describe ONE possible problem in the translation system (lysate) that would result in the limitation of newly synthesized peptides to two amino acids in length.
Answer:
Problems with transfection efficiency or absence of essential mRNA modifications (capping and poly-A tail)
Explanation:
Translation is the process of protein synthesis from RNA in which the genetic information encoded in a messenger RNA (mRNA) molecule is translated into a protein sequence composed of amino acids. Translation has three steps: initiation, elongation, and termination. During translation, different elements are required to initiate, continue and complete the process, which include essential molecules such as amino acids, mRNA, tRNAs, ribosomes, energy-carrying molecules (i.e., ATP, GTP), initiation factors (i.e., eIF1A, eIF3, etc) and elongation factors (eEF-2, EIF5A). For example, humans can't synthesize nine essential amino acids (i.e., threonine, tryptophan, phenylalanine, valine, methionine, leucine, histidine, isoleucine, lysine), thereby it is imperative to include these amino acids to synthesize proteins composed of them. On the other hand, it is also fundamental to take into account that the efficiency of transfection of the molecules required during translation, as well as the absence of modifications in the mature mRNA sequence, may alter the process in vitro.
Why do plant cells need cell walls? What is it made up of?
Answer: The cells walls are tough, flexible, and sometimes rigid. And these are perfect for a defense. Plant cells require the cell wall for protection against variations in temperature, high wind speed, atmospheric moisture, among other things. The cell wall is located just outside the cell membrane and it is made up of Cellulose and Peptidoglycan. The “peptide” part of the substance is from short chains of amino acids called peptides. The “glycan” part is long chains of sugars which along with the peptides make up the mesh of the cell wall.
Hope this helped you!
What is habitat loss and why is it dangerous (in your own words)
Answer:
due to destruction, fragmentation, or degradation of habitat—is the primary threat to the survival of wildlife in the United States.it is dangerous because for the next gen there will be no more animals.
Explanation:
your welcome plz like this
What role does competition play in the development of adaptations over time?
Answer: The individuals compete for limited resources, and those individuals that are better suited to competition are also better able to survive and reproduce. If heritable, those traits that improved competitive ability will be passed to offspring, and will thus become more common in future generations.
Explanation:
What are the impacts of catastrophic events?
Define global warming? What are the greenhouse gases?
What are the problems associated
arming in artic? Coastal area?
What are some ways that human lifestyles affect the environment?
Describe some sustainable farming techniques.
Describe some environmental parameters that should be examined before building on land?
Answer:
espero que te sirva
Explanation:
El calentamiento global y el cambio climático tienen coincidencia en la principal
de sus causas, la emisión masiva de los diferentes gases de efecto invernadero o
GEI que retienen el calor dentro de la atmósfera y sobre la superficie terrestre a
través del denominado efecto invernadero.
El efecto invernadero es un proceso natural por el cual se produce la retención
del calor procedente del Sol en la atmósfera terrestre gracias a la capa de GEI que
se encuentra en ella. Estos gases en cantidades normales mantienen la
temperatura del planeta aproximadamente a 33ºC por encima de la que podría
tener si estos no existieran, por lo que el planeta sería demasiado frío para que se
desarrollase vida en él. Sin embargo, actualmente el efecto invernadero se está
volviendo tan intenso a causa de nuestras emisiones que comienza a tener graves
repercusiones en el medio.
El Grupo Intergubernamental de Expertos sobre el Cambio Climático (IPCC)
concluyó en el Quinto Informe de Evaluación (AR5) de 2013 que la influencia
humana había sido la causa dominante de este calentamiento producido desde la
mitad del siglo XX a través de la emisión de GEI, lo cual es una evidencia cada vez
mayor. Entre los principales gases emitidos se encuentran el vapor de agua, el
dióxido de carbono, el metano y el ozono.
Identify the structures in the cell pictured on the
right.
Label A
Label B
Label C
Label D
Label E
Answer:
Label A = Nucleus
Label B = Cytoplasm
Label C = Ribosomes
Label D = DNA
Label E = Cell Membrane
Explanation:
Hope this helps :)
The person above me is correct :)
A. Nucleus
B. Cytoplasm
C. Ribosomes
D. DNA
E. Cell membrane
Have a good day <3
- Correct on Edge 2022.
Which of the following helps protect biofilms from issues such as drying out and predators
a.) Extracellular polymeric substances
b.) Quorum sensing
c.) Becoming sessile
d.) Autoinducers
Extracellular polymeric substances help protect biofilms from issues such as drying out and predators. Option A
Biofilms are complex communities of microorganisms that adhere to surfaces and form a protective matrix. They can be found in various natural and artificial environments, such as riverbeds, medical devices, and plumbing systems. Biofilms provide advantages to the microorganisms within them, including protection from environmental stresses and predators.
One of the key components that helps protect biofilms is extracellular polymeric substances (EPS). EPS are complex mixtures of polysaccharides, proteins, and DNA that are secreted by microorganisms within the biofilm. These substances form a matrix that encases the cells, providing structural support and protecting the community.
EPS help biofilms resist drying out by retaining water and preventing desiccation. The polysaccharides in EPS can absorb and retain moisture, creating a hydrated environment within the biofilm even in dry conditions. This is crucial for the survival of the microorganisms within the biofilm.
Additionally, EPS serve as a barrier against predators. The matrix formed by EPS can make it difficult for predators, such as protozoa or grazing organisms, to access and consume the microorganisms within the biofilm. It acts as a physical defense mechanism, limiting the exposure of the microorganisms to predation.
While quorum sensing, becoming sessile (immobile), and autoinducers are all important mechanisms and processes associated with biofilms, they do not directly address the protection of biofilms from drying out and predators. So Option A is correct.
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If the DNA sequence is CCAATTGA, what is the compliment?
GGTTAACT is the complement of DNA sequence CCAATTGA.
What is a complement sequence of DNA?A sequence of bases in a nucleic acid called a complementary sequence can be used to match base pairs to create a double-stranded structure. For instance, G-T-A-C is the complementary sequence to C-A-T-G, where each letter represents a different DNA nucleotide.
Every DNA sequence has a counterpart sequence running in parallel since DNA has two strands. Adenine (A) is always coupled with Thymine (T) in the complementary sequence, while Cytosine (C) is always paired with Guanine (G).
Natural complementary DNA plays a crucial role in the production of new DNA copies and has emerged as a key experimental tool. The two strands of DNA are unraveled from one another during replication. Each strand is replicated twice, one by a DNA polymerase molecule that runs the length of each strand.
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Which reading on the hydrometer would indicate a solution with greater buoyancy?
A) 1.000
B) 1.025
Answer:
1.025
Explanation:
The buoyant force is equal to the weight of the water displace. The hydrometer floats more in the denser liquids. The buoyancy force is usually 1.025 in the solution but it is increased if more pressure is exerted on the solution. The pressure of the fluid will increase from its depth.
Marceau is studying small single-celled organisms that lack nuclei .these organisms can be broadly classified into which domain
Answer:
Prokaryotes
Explanation:
A cell without a nucleus would be a prokaryote. Examples are bacteria and other single celled organisms
What is the differences of mitosis and meiosis
mitosis refers to the parts of the original nucleus into two nuclei. On the other hand, meiosis refers to each having half chromosomes of the original cell.
in mitosis, there is the maintenance of chromosomes takes place while meiosis leads to a reduction in the no. of chromosomes. There are no variations in mitosis and variants occur in meiosis.
hence at last we can say that the above are the major difference between mitosis and meiosis. All of the explained differences will clearly lead to identifying them in particular. mitosis and meiosis plays a vital role in formation of gametes.
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The are the plants, algae, and other organisms that can make their own food.
Autotrophs are plants, algae, and other organisms that can make their own food.
These organisms are called autotrophs, which translates to "self-feeders." Autotrophs play a crucial role in ecosystems as primary producers, forming the foundation of food chains and providing sustenance for other organisms. Photosynthesis is a complex biochemical process that occurs in the chloroplasts of plant and algal cells.
It involves the conversion of light energy from the sun into chemical energy in the form of glucose. Autotrophs accomplish this by utilizing pigments, primarily chlorophyll, to absorb light energy. During photosynthesis, autotrophs take in carbon dioxide from the atmosphere and water from the environment. With the aid of sunlight, these raw materials are transformed into glucose and oxygen.
Glucose serves as an energy source for organisms, while oxygen is released back into the atmosphere as a byproduct. This ability to synthesize their own organic compounds from inorganic substances gives autotrophs a distinct advantage.
Autotrophs exist in various forms, including land plants, such as trees, grasses, and flowers, as well as aquatic plants like seaweeds and pond algae. Additionally, certain bacteria and protists are capable of photosynthesis, broadening the range of autotrophic organisms.
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A certain population of flowering plants depends on bees for pollination. What will happen to this population if there is an increase in the number of pollinating bees?
A.
The population will not change.
B.
The population will not be able to reproduce.
C.
The population will decrease.
D.
The population will increase
If there is an increase in the number of pollinating bees, then D. The population will increase.
What is the natural process phenomenon of pollination?The natural process phenomenon of pollination refers to the fecundation mechanism in plants that involves the transport of pollen by means of insects from one plant to another, thereby it is associated with an increase in the number of plants.
Therefore, with this data, we can see that the natural process phenomenon of pollination is based on the movement of bees that carry out pollen.
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Answer:
the answer is increase
Explanation:
i had this one be for
PLEASE HELP!!!! 1OO POINTS!!
(Score for Question 1: ___ of [5] points)
1. One of the central themes in biology is how DNA, RNA, and proteins are related. Describe how genetic information flows between those types of molecules. Include the results of the processes of transcription and translation.
Answer:
Type your answer here.
(Score for Question 2: ___ of [5] points)
2. DNA remains in the nucleus. mRNA can travel in and out of the nucleus. Explain how the function of DNA and mRNA differs.
Answer:
Type your answer here.
(Score for Question 3: ___ of [5] points)
3. When scientists refer to the DNA to RNA to proteins pathway, the RNA part really represents three different types of RNA: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). How is each type of RNA important to protein production?
Answer:
Type your answer here.
Answer:
DNA, RNA, and proteins are related. Describe how genetic information flows between those types of molecules. Include the results of the processes of transcription and translation.
Differentiate between population density and population distribution.
Answer:
population distribution is used to describe how people are spread across a certain area while population density is the number of people living in each unit of an area
Explanation:
hope that answers your question
When are the evolutionary effects of genetic drift the greatest?
The population size is small
The population size is large
$exual selection occurs
Intraspecific competition is weak
Answer:
The population size is small
Explanation:
If population size is small, the genetic diversity is low. Thus, genetic drift overtime results in individuals with very similar genotype. This is bad news because if a particular disease affects suppose organism with AA genotype and due to genetic drift all members are AA, then all the organisms might be decimated and extinct.
Answer:
population size is small
Explanation:
Miguel has built an observation station on the moon in the “sea of tranquility,” a maria famous for being one of the “eyes” of the “man in the moon.” How often will Miguel be able to see the earth from this station? Group of answer choices never; it is underwater one quarter of the time, as the moon rotates and revolves half the time, as the moon rotates and revolves all the time, as the moon rotates and revolves
Answer:
all the time, as the moon rotates and revolves
Explanation:
Because you see the sun and moon rotate every single day.
The time in which Miguel would be able to view the Earth from the station would be:
D). all the time, as the moon rotates and revolves.
In the given situation, Miguel would be able to observe the Earth all of the time from the station.The reason behind this is that the Moon is the Earth's natural satellite. It not only rotates on its axis but also revolves around the Earth. Therefore, it will be visible.Thus, option D is the correct answer.
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explain how some substances cross the cell membrane by facilitaded diffusion
According to the research, the correct answer is some substances cross the cell membrane by facilitated diffusion through the use of transporters or carriers.
What is facilitated diffusion?It is a type of transport that requires carrier proteins or transport proteins that are usually located in the membrane.
In this sense, it is used by uncharged water-soluble molecules or charged particles since, due to their water solubility, they are not able to freely cross the lipid bilayer by simple diffusion.
Therefore, we can conclude that facilitated diffusion uses specific membrane transport proteins that allow certain charged molecules to cross the cell membrane.
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Plants have specialized structures that help ensure reproduction. Which statement is an example of these structures?
A. An oak tree has thick bark.
B. A banana plant has green leaves.
C. Dandelion seeds blow in the wind.
D. Carrots grow underneath the soil.
The statement that best exemplifies specialized structures in plants is C: "Dandelion seeds blow in the wind."
This statement refers to the specialized structure of dandelion seeds, which have a feathery structure called a pappus that aids in dispersal through wind. Plants have evolved various specialized structures to ensure their reproduction and dispersal. In the case of dandelion seeds, their feathery pappus allows them to catch the wind and be carried away from the parent plant to new locations where they can germinate and grow.
This adaptation increases the chances of their survival and colonization in different areas. Specialized structures in plants can also include adaptations like bright flowers and sweet nectar to attract pollinators, thorns or spines for defense against herbivores, and underground storage organs like tubers or bulbs for nutrient storage and propagation.
These structures play crucial roles in the reproductive success and survival of plants in their respective environments, allowing them to disperse their offspring, attract pollinators, defend against threats, and establish themselves in diverse habitats. Therefore, Option C is correct.
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The heart is an organ in the circulatory system. Muscle tissue in the heart contracts to pump blood to the body. Connective and epithelial tissues in the heart hold the muscle cells together and in place in the chest. Nervous tissue in the heart coordinates how fast and hard the muscle cells contract.
Based on the information about the heart, which of these best describes the relationship between tissues and organs?
A.
None of the tissues in an organ help the other types of tissue to function.
B.
Organs function best when they are made up of only one type of tissue.
C.
Organs can function because they are made of different types of interacting tissues.
D.
Each type of tissue in an organ can carry out the function of the entire organ.
How does exhaling remove waste from the body? Explain the systems that make this happen, using complete sentences.
Exhaling removes waste from the body by expelling carbon dioxide through the respiratory system.
Exhaling plays a crucial role in removing waste from the body, particularly in the form of carbon dioxide (CO2), a byproduct of cellular respiration. The respiratory system, composed of the lungs and airways, is primarily responsible for this process.During inhalation, air containing oxygen is drawn into the lungs through the nose or mouth. Oxygen then diffuses across the lung tissue into the bloodstream, where it binds to hemoglobin and is transported to cells throughout the body. In the cells, oxygen is utilized in metabolic processes, generating energy and producing CO2 as a waste product.When we exhale, the diaphragm and intercostal muscles relax, causing the volume of the chest cavity to decrease. This action increases the pressure within the lungs, and air rich in CO2 is expelled from the body through the airways. The CO2 is removed from the bloodstream and eliminated from the body, reducing the waste buildup.Overall, the respiratory system's main function is to facilitate the exchange of gases, allowing oxygen to enter the body and carbon dioxide to be eliminated. Exhalation plays a vital role in removing waste by expelling CO2 and maintaining a balanced gas composition within the body.For more questions on respiratory
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What is an example of an unsaturated fat?
A. vegtable oil
B. amino acids
C. butter
D. steak
Answer:
A
Explanation:
Oils, including vegetable oils, are made of mostly unsaturated fats, and therefore are unsaturated.
A young man leaped from his hotel room to avoid burning to death in a fire. If he landed on his heels, what bone was likely to fracture? Unfortunately for the young man, a 240-pound fireman ran by and stepped heavily on the distal part of a young man’s foot (not the toes). What bones now could be broken?
The young man in question who leaped from the hotel room onto his heels and was then stepped on by a fireman is likely to have fractured 11 bones in each of his feet.
The feet of most individuals are comprised of 7 tarsal bones, 5 metatarsals, and 14 phalanges (2 for the "big toe" and 3 for all others). The only group with names are that of the tarsal bones, which are:
CalcaneusTalusCuboidNavicularMedial, middle, and lateral cuneiformsThe question states that the young man landed on his heels. This would mean that the bone that absorbed the impact of the fall is the calcaneus, which comprises the heel of the foot.
The young man's foot is then stepped on by a 240-pound fireman. Assuming that all of the bones stepped on are fractured, the young man will have fractures in each of the tarsal bones with exception of the talus which comprises the ankle as well as the metatarsal bones.
The question states that the fireman steps on the distal part of the man's foot, but not the toes. This area of the foot is comprised of the tarsal bones mentioned above, and the metatarsals. This is why all of the these bones listed above except the talus are likely fractured.
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