Question

The Y-chromosome carries the SRY gene that codes for the production of testosterone in humans. Occasionally a mutation occurs resulting in the SRY gene being lost from theY-chromosome and added to the X-chromosome, as shown in the diagram below.

Based on the diagram, which statement is correct?
The production of testosterone influences the development of male characteristics.
Reproductive technology has had an important influence on human development.
Normal female characteristics develop from a single X-chromosome.
Male characteristics only develop in the absence of X-chromosomes.

Answer 1

Answer: 1)

Explanation: Because Y is only present in males and Y has the gene for the production of testosterone, it can be inferred that this production leads to male characteristics.