Initial clue about genetic/chromosomal mechanism of sex-determination can be traced back to some of

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4.Principles of Inheritance and Variation

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Initial clue about the genetic/chromosomal mechanism of sex-determination can be traced back to some of the experiments carried out in

A

Human beings

B

Birds

C

Insects

D

Plants

Solution

Henking discovered $X-$body.

Standard 12

Biology

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Similar Questions

Select the incorrect pair

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$X$ -chromosome or $X$ – body was first observed by………….

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Genetic identity of a human male is determined by

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(AIPMT-1997)

Match the items of column $I$ with column $II$

Column $I$ Column $II$

$(a)\; XX-XO$ method of sex determination $(i)$ Turner's syndrome

$(b)\; XX-XY$ method of sex determination $(ii)$ Female heterogametic

$(c)$ Karyotype$-45 $ $(iii)$ Grasshopper

$(d)\; ZW-ZZ$ method of sex determination $(iv)$ Female homogametic

Select the correct option from the following

easy

(NEET-2019)

Assertion : In humans, the gamete contributed by the male determines whether the child produced will be male or female.

Reason : Sex in humans is a polygenic trait depending upon a cumulative effect of some genes on $X-$ chromosome and some on $Y-$ chromosome.

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(AIIMS-2015)