The genetic material, DNA, must undergo replication before a cell enters mitosis. DNA replication results in two identical copies of the DNA.
Question is incomplete i have added full question in ask for detail section.
Answer:
Option a. met3, Met3p, MET3 is correct answer
"An investigator is studying mutants in methionine synthesis. The _met3_ mutants are unable to ATP sulfurylase, also known as _Met3p_. This protein is the product of the _MET3_gene. "
Explanation:
MET3 encodes ATP sulfurylase, which is a catalyst of first step of the sulfur assimilation pathway. This pathway results in the formation of hydrogen sulfide which is a precursor in the biosynthesis of cysteine, homocysteine, and methionine.
Source: National Center for Biotechnology Information, U.S. National Library of Medicine
The correct answer to the question which is stated above is letter c. Nerve net.
<span>Echinoderms, like sea stars, have a Nerve Net nervous system.
>></span><span>Nerve nets are found in members of the </span>Cnidaria<span>, </span>Ctenophora<span>, and </span>Echinodermata phyla<span>, which are found in </span>marine<span> environments. </span>
<u><em>-Describe how food is broken down to make ATP.</em></u>
Digestion breaks down food into smaller molecules that can be used to make ATP.
- Different foods have different amounts of calories, which indirectly related with how much ATP each type of food can make.
- Carbohydrates are the most commonly broken down molecule to make ATP. The breakdown of the simple sugar glucose yields about 38 molecules of ATP.
<u><em>-Describe the process of cellular respiration. What are the products and the reactants?</em></u>
During cellular respiration, the glucose and oxygen combine together to form new products: Carbon dioxide molecules & water molecules. ATP is produced as the form of energy that can be used for other cellular processes. The reactants of photosynthesis are the products of cellular respiration and the reactants of cellular respiration are the products of photosynthesis.