Males in humans always possess two distinct sex chromosomes, while females have the same sex chromosomes.

There are many animals in which the sex chromosomes are switched.

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In birds, males have the same type of sex chromosome, while females have a distinctive pair.

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Solution

The correct option is A
There are many animals in which the sex chromosomes are switched.

In humans, males have XY chromosome and females have XX chromosome. Sex is determined based on the combination of X and Y chromosome present in an individual.

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Similar questions

Males in animals always possess two distinct sex chromosomes, while females have the same sex chromosomes. Which of the following disproves this statement?

Q. In humans, females have sex chromosomes and males have sex chromosomes.

Q. Assertion :In pigeons, females are heterogametic and males are homogametic. Reason: In pigeons, females have ZW sex chromosomes and males have ZZ sex chromosomes.

Q. In honeybees, females are (i) having (ii) chromosomes and males are (iii) having (iv) chromosomes.

Q. Match the following

	List I		List II
A	In human beings and a number of other animals, there are two types of chromosomes, ______, and allosomes.	1	44+XY
B	_______ are those chromosomes which control functions of the body, other than sex determination. Allosomes or sex chromosomes are the chromosomes that determine the sex of the individual in unisex organisms.	2	Autosomes
C	Human beings have _____ pairs of chromosomes.	3	23
D	_____ determine the sex of the individual.	4	Sex chromosomes
E	The two sex chromosomes of females are similar and are called _____ chromosomes. They are dissimilar in human males. One is a normal-sized X-chromosome. The other is smaller with a good amount of non-function chromatin. It is called the Y-chromosome.	5	XX
F	The chromosome complement of human females is ______	6	44+XX
G	Human males is _____. Human females are homogametic, i.e., produce only one type of gametes or ova (22 + X). Humans are heterogametic, i.e., they produce two types of gametes sperms, angiosperms, and gymnosperms.	7	Autosomes

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Males in humans always possess two distinct sex chromosomes, while females have the same sex chromosomes.

The correct option is A There are many animals in which the sex chromosomes are switched. In humans, males have XY chromosome and females have XX chromosome. Sex is determined based on the combination of X and Y chromosome present in an individual.

The correct option is A
There are many animals in which the sex chromosomes are switched.

In humans, males have XY chromosome and females have XX chromosome. Sex is determined based on the combination of X and Y chromosome present in an individual.