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Question 6 U In Drosophila, the sx gene acts as the master switch gene of the sex determination cascade and this gene product
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Answer #1

Answer :- False.

Explanation :- In Drosophila the function of sxl gene is a post transcriptional gene regulation event. It has many functions because it act as a master switch gene in sex determination cascade.

The function of sxl gene is on in female Drosophila. Basically it induces the splicing of mRNA from tra gene. This spliced tra-mRNA form the female oriented mRNA which is translated into a productive TRA protein , which have the capacity to recognise RNA and it regulates the process of sex differentiation in female Drosophila. But in male this TRA protein is not formed.

So from the above discussion we can conclude that the the product of sxl gene is on and actively functioning.

So the answer is false.

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