Answer:
<h2>A</h2>
Explanation:
Pepsinogen is an inactive enzyme which is activated into active digestive enzyme known as pepsin. It is a digestive enzyme which causes breakdown of proteins. Active pepsin causes cleavage of more pepsinogen molecule by a positive feedback loop and leads to increase in the concentration of active pepsin molecule.
Its concentration increases according the requirement in the body which is controlled by feedback system.
C. Agar provides a solid surface for bacterial growth.
Agar is a substance obtained from red algae which when added to a culture media, provides a solid surface for the growth of bacteria. When the agar is not added then the culture media remains as the broth and when the agar is added then the broth gets solidified.
Agar is added 1.5-2% in the broth to get solidified. The growth of the bacteria depends on the amount of agar added. Agar is used for the growth of bacteria because it has gel like properties which holds the nutrients evenly and the bacteria can use it accordingly.
Answer:
Hox gene complex is the set of genes responsible for maintaining the basic body plan of an organism. Synpolydactyly syndrome was the first disorder discovered in human beings that resulted from the mutation in the Hox gene complex. As a result of mutations in the Hox gene complex, syndactyly is inherited, which results in the fusion of fourth and fifth toes and third and fourth fingers.
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Answer:
see below image:
Explanation:
inputs + their outputs listed in the image