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balandron [24]
4 years ago
8

What is the purpose of DNA replication

Biology
1 answer:
scZoUnD [109]4 years ago
8 0

Answer:

A. or B

Explanation:

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______ is a source of genetic variation that involves the swapping of sections of chromosomes during meiosis.
Zepler [3.9K]

Answer:

crossing over

Explanation:

This occurs between prophase 1 and metaphase 1.

7 0
4 years ago
Read 2 more answers
Which of the following is NOT true about light-independent photosynthesis? a. Light-independent reactions take the products of t
k0ka [10]

B

Rather, the Calvin-Benson Cycle is BEGINS when RuBP acquires a carbon from the atmosphere in the form of carbon dioxide to become RuBisCO.

Explanation:

Calvin cycle is the dark phase cycle in plants that generates carbohydrates from reduction of carbon dioxide. The products of light phase – ATPs and NADPH -  are used in the Calvin cycle which is a catabolic pathway.

Calvin cycle BEGINS with a RuBP (Ribulose 1,5-bisphosphate) molecule that captures 3 carbon dioxide molecules to become a Rubisco. The Rubisco is hydrolysed into six 3-PGA which are reduced to G3Ps. One G3P is used to make glucose while the others are used to regenerate RuBP.

Learn More:

For more of Calvin Cycle check out;

brainly.com/question/2749822

brainly.com/question/5756733

#LearnWithBrainy

5 0
3 years ago
What is an endotherm? how do sweating, fur, and feathers affect the body temperatures of endotherms?
Anton [14]
<span>1. What is an endotherm?
Endotherm is an animal that keeps their temperature constant in a certain range. Keeping temperature is important because most enzyme has an optimal working range. By keeping the temperature at optimal range for the enzyme, the organism can do metabolism more efficient.


2. how do sweating, fur, and feathers affect the body temperatures of endotherms?
The environments temperature should influence the temperature of an organism that lives within it. </span>Endotherms need to control their temperature, so they have some mechanism to increase/decrease the body temperature. or to insulate themselves from the environment.
Sweating help decreasing temperature makes the organism can withstand hot environment. Fur and feather will insulate the body, makes the organism more resistant to cold.<span>

</span>
7 0
3 years ago
A biologist pollinates a true-breeding yellow flower with pollen from a true-breeding red flower of the same species. All of the
Xelga [282]

Answer:

See the answer below

Explanation:

The question that can be answered with the F2 cross would be <u>if the yellow flower color is dominant over the red flower color in the species</u>. In other words, <u>whether the inheritance of flower color follows a simple Mendelian inheritance or otherwise can be answered.</u>

<em>Assuming that the inheritance of the flower color follows the Mendelian pattern, the red flower trait would re-emerge among the F2 offspring and the ratio of yellow to red flower offspring would approximately be equal to</em><em> 3:1.</em><em> Otherwise, a more complex pattern of inheritance would be involved.</em>

5 0
3 years ago
Smooth muscle is characterized by all of the following EXCEPT ________. a) it appears to lack troponin b) there are noncontracti
larisa86 [58]

Answer:

There are more thick filaments than thin filaments. (Ans. D)

Explanation:

Smooth muscle doesn't contain the calcium binding protein troponin. In smooth muscle, contraction is initiated by a calcium regulated phosphorylation of myosin, rather than a calcium activated troponin system.

The intermediate filaments are connected to each other with the help of dense bodies, which are attached to adherens junction in the cell membrane of the smooth muscle cells which are known as sarcolemma.

Smooth muscle cell lack sarcomeres because their filaments occur as a spiral and actin, myosin filaments are not regularly arrayed along the length of the cell.

In smooth muscle thin filaments occurs more than thick filaments.

So, the answer is D.

8 0
4 years ago
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