In Drosophila,how is sex determination decide | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) In $Drosophila$ (fruit fly),sex determination is based on the genic balance theory proposed by $C.B. Bridges$. According to this theory,the sex of

Vedclass · Accepted Answer

By the ratio of the number of $X$ chromosomes to the number of sets of autosomes.

Vedclass · Answer

(C) In $Drosophila$ (fruit fly),sex determination is based on the genic balance theory proposed by $C.B. Bridges$. According to this theory,the sex of the individual is determined by the ratio of the number of $X$ chromosomes $(X)$ to the number of sets of autosomes $(A)$. This ratio is denoted as $X/A$ ratio. If the $X/A$ ratio is $1.0$,the individual is a female. If the $X/A$ ratio is $0.5$,the individual is a male. If the ratio is between $0.5$ and $1.0$,it results in an intersex individual. Therefore,the correct answer is the ratio of the number of $X$ chromosomes to the number of sets of autosomes.

In $Drosophila$,how is sex determination decided?

Similar Questions

How is the sex of the offspring determined in humans?

The genic balance theory of sex determination was proposed by:

$A$: $XO$ type sex determination is found in a large number of insects.
$R$: Some of the sperms bear the $X$-chromosome,whereas some do not.

If the $X/A$ ratio of two Drosophila individuals is $0.6$ and $0.33$ respectively,what will be their sex?

$A$ couple has three daughters. What is the probability of having a son in the next pregnancy (in $,\%$)?

Vedclass Test Series

Exam Paper Generator

Online Exam Module