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Radda [10]
3 years ago
15

What are two ways that crossing over contributes to genetic variation​

Biology
1 answer:
Lisa [10]3 years ago
6 0
Crossing over, or recombination, is the exchange of chromosome segments between nonsister chromatids in meiosis. Crossing over creates new combinations of genes in the gametes that are not found in either parent, contributing to genetic diversity.
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Vesna [10]

Answer: Option B) Nuclei house the DNA, which is the blueprint for proteins. Cell types I, II, and III can synthesize proteins.

Explanation:

All the genetic information that determines the traits expressed in an organism are loaded up within the DNA sequence. Hence, several genes that codes functional proteins are derived from the DNA, making DNA a blueprint for protein synthesis.

Thus, Cell types I, II, and III with DNA can synthesize proteins.

7 0
3 years ago
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The term aerotolerant anaerobe refers to an organism that:
quester [9]

Answer:

does not use oxygen but tolerates it.

Explanation:

The term aerotolerant anaerobe refers to an organism that. does not use oxygen but tolerates it.

6 0
2 years ago
Which macromolecule will our bodies use first for energy?
sveta [45]

Answer:

Your body uses carbohydrates, lipids and proteins for energy. When small organic molecules bind together, they form larger molecules called biological macromolecules. Biological macromolecules fall into four categories: carbohydrates, proteins, lipids and nucleic acids. Your body uses carbohydrates, lipids and proteins for energy.

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Your body uses carbohydrates, lipids and proteins for energy. When small organic molecules bind together, they form larger molecules called biological macromolecules. Biological macromolecules fall into four categories: carbohydrates, proteins, lipids and nucleic acids. Your body uses carbohydrates, lipids and proteins for energy.

4 0
3 years ago
1. Two-year old Zack has an inherited disorder in which his body cannot break down fat. He will probably die by the time he is f
Natali [406]
<span>1. Two-year old Zack has an inherited disorder in which his body cannot break down fat. He will probably die by the time he is four. Zack is most likely suffering from:

a. phenylketonuria.
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2.
The first two weeks of a pregnancy, from conception to implantation, are known as the _____ period.
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b. germinal


3. Which of the following is TRUE of transcranial magnetic stimulation (TMS)?
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4. Drive-reduction approaches to motivation are:
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8 0
3 years ago
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Answer: Kidney

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3 years ago
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