1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
san4es73 [151]
3 years ago
13

Explain the relationship between crossing over and genetic variation.

Biology
2 answers:
Anon25 [30]3 years ago
8 0

Answer:

Crossing over is the process by which genetic material is exchanged by non-sister chromatids during meiosis.

Crossing over results in a new combination of genetic information for the cell for a specific trait.

Crossing over ensures that organisms are not identical from generation to generation.

Genetic recombination allows for a variation in genetic material that is passed through the generations.

Explanation:

mojhsa [17]3 years ago
7 0

Crossing over produces modern combinations of alleles. Not unused alleles but unused combinations which can result in modern phenotypes or expanded assortment of phenotypes. This way the there's expanded genotype/phenotype variety but the genuine qualities are still the same ones.

You might be interested in
Why is it important to predict evolutionary responses of a population?
Elden [556K]

Answer:

Because it help us to maintain biodiversity of our planet.

Explanation:

3 0
3 years ago
How does carbon not get lost when it moves through the carbon cycle
Greeley [361]

Answer:

Carbon is the chemical backbone of life on Earth. Carbon compounds regulate the Earth’s temperature, make up the food that sustains us, and provide energy that fuels our global economy. Carbon moves from one storage reservoir to another through a variety of mechanisms. For example, in the food chain, plants move carbon from the atmosphere into the biosphere through photosynthesis. They use energy from the sun to chemically combine carbon dioxide with hydrogen and oxygen from water to create sugar molecules. Animals that eat plants digest the sugar molecules to get energy for their bodies. Respiration, excretion, and decomposition release the carbon back into the atmosphere or soil, continuing the cycle. The ocean plays a critical role in carbon storage, as it holds about 50 times more carbon than the atmosphere. Two-way carbon exchange can occur quickly between the ocean’s surface waters and the atmosphere, but carbon may be stored for centuries at the deepest ocean depths. Rocks like limestone and fossil fuels like coal and oil are storage reservoirs that contain carbon from plants and animals that lived millions of years ago. When these organisms died, slow geologic processes trapped their carbon and transformed it into these natural resources. Processes such as erosion release this carbon back into the atmosphere very slowly, while volcanic activity can release it very quickly. Burning fossil fuels in cars or power plants is another way this carbon can be released into the atmospheric reservoir quickly.Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. As a result, the amount of carbon dioxide in the atmosphere is rapidly rising; it is already considerably greater than at any time in the last 800,000 years.  The ocean absorbs much of the carbon dioxide that is released from burning fossil fuels. This extra carbon dioxide is lowering the ocean’s pH, through a  process called ocean acidification. Ocean acidification interferes with the ability of marine organisms (including corals, Dungeness crabs, and snails) to build their shells and skeletons.

6 0
2 years ago
A)what would happen to the quantity of sweat when temperature increases? explain why it happen.
Brrunno [24]

i'm sorry i didn't understand b and c but i can help you with a)

Explanation:

The human body has the ability to thermoregulate, so when the temperature rises, the blood vessels dilate, and the body emits more heat than it receives, and therefore sweat is released to cool the body. Hence, the higher the temperature the greater the sweating

hope it helps ;)

7 0
2 years ago
Which descriptions accurately apply to vascular plants? Check all that apply.
atroni [7]

Answer: have true roots, stems, and leaves

may have seeds

may not have seeds

have vascular tissue

Explanation:

some vascular plants have seeds and some do not.

they have vascular tissue such as xylem and phloem

they have true roots, stems, and leaves

6 0
2 years ago
Read 2 more answers
What is the difference between taxon and species​
Brilliant_brown [7]

Answer:

As taxon is part of the taxonomic category it is constructed by individual biological objects. -Species contains a group of individuals with same morphological characters and they can breed among themselves whereas taxon is a group of one or more population of an organism in taxonomical form.

Explanation:

6 0
2 years ago
Other questions:
  • Which type of biomacromolecule contains paired bases? A. Protein B. Carbohydrate C. Lipid D. Nucleic Acid
    6·2 answers
  • Which traits are likely to be different alleles of the same gene? Check all that apply.
    10·2 answers
  • Sections of active fault lines that haven't experienced a significant earthquake for a long time, even though adjacent sections
    15·1 answer
  • What are components of earths life support system
    15·2 answers
  • Hershey and Chase used radioactive isotopes to label different parts of the phage. They grew one batch of phage in the presence
    10·1 answer
  • I need help, I don't understand this, so please try to explain?
    5·1 answer
  • Cells that do not divide are described as being in the ____ phase.
    14·1 answer
  • Because there are three different possible reading frames in a messenger RNA (mRNA) molecule, most mRNAs can be translated in a
    9·1 answer
  • What is special about each organism in the ecosystem
    9·2 answers
  • A social consequence describes any change good or bad in the lives of people and how they interact with one another sometimes la
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!