Q2 of 55 Page 247

The maleness of a child is determined by:

The Y chromosome is contributed by the father or the male partner during reproduction. It is a sex chromosome which pairs up with the X chromosome from mother, to provide maleness or male characters to the child.

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26

Given below is the experiment carried out by Mendel to study inheritance of two traits in garden pea.

(i) Fill in the boxes with appropriate answer.


(ii) Why did Mendel carry out an experiment with two traits?


(iii) What were his findings with respect to inheritance of traits in F1 and F2 generations?


 1

In human males, all the chromosomes are paired perfectly except one. This/these unpaired chromosome is/are”

(i) large chromosome


(ii) small chromosome


(iii) Y-chromosome


(iv) X-chromosome

 3

A zygote which has an X-chromosome inherited from the father will develop into a:

 4

Select the incorrect statement: