40. Which of the following statements regarding substrate-level phosphorylation is correct?

Biology

1 answer:

Kobotan [32]3 years ago

5 0

Answer: c. Depends one distinct enzyme type

Explanation:

Glycolysis is the common metabolic pathway to all living things and consists of the incomplete oxidation of the glucose in pyruvate and occurs in the cytosol of eukaryotes and prokaryotes. During the substrate-level phosphorylation ATP is generated when a high energy P is directly transferred from a compound phosphorylated (substrate) to ADP. P got its energy during an initial reaction, in which the substrate itself is oxidized. During this process one distinct enzyme (Succinyl CoA) type is used.

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Explanation:

In humans, sex chromosomes in males and females are different. The sex chromosomes found in humans are X and Y chromosomes. X-linked trait is a trait which is inherited on the X- chromosome. According to the question, the trait is passed on a X-linked dominant condition, which means the condition is inherited on the abnormal dominant X-chromosome that will express itself even when in an heterozygous state with a normal X-chromosome.

Hence, a father affected by the condition will have a genotype; XY while a mother that does not have the condition will have a genotype: xx (two normal x chromosomes). Since the Father can only pass his X chromosome to his daughters and never his sons, all his daughters will inherit the condition (see the punnet square in attached image).

N.B: None of the sons will inherit the condition since the mother will pass normal X-chromosomes (x) to her sons.