Which one of the following conditions of the zygotic cell would lead to the birth of a normal human female child?

  • Option 1)

    Two X chromosomes

  • Option 2)

    Only one Y chromosome

  • Option 3)

    Only one X chromosome

  • Option 4)

    Only X and one Y chromosome

 

Answers (1)

As learnt in

XY-type of sex determination mechanism -

In this type, the male has an X-chromosome along with its counter part distinctly samller Y-choromosome and females have a pair of X-chromosome.

- wherein

E.g. in mammals and humans.

 

 


Option 1)

Two X chromosomes

This option is correct

Option 2)

Only one Y chromosome

This option is incorrect

Option 3)

Only one X chromosome

This option is incorrect

Option 4)

Only X and one Y chromosome

This option is incorrect

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