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प्रश्न
A zygote which has an X-chromosome inherited from the father will develop into a
विकल्प
boy
girl
X- chromosome does not determine the sex of a child
either boy or girl
उत्तर
girl
Explanation -
In humans, females produce eggs with X chromosome whereas males produces sperms with either X or Y chromosome. If a zygote receives X chromosome from father, it inherits X chromosome from mother. Thus, a zygote with XX will develop into a girl child.
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संबंधित प्रश्न
A normal cell of human body contains 23 pairs of chromosomes. The number of chromosomes in a sex cell (sperm or ovum) of a human being is most likely to be :
(a) 46
(b) 23
(c) 21
(d) 42
The two versions of a trait (character) which are brought in by the male and female gametes are situated on :
(a) copies of the same chromosome
(b) sex chromosomes
(c) two different chromosomes
(d) any chromosomes
Both father and mother have the genes Ee in their cells. What colour are their eyes?
Name two animals which have nineteen pairs of chromosomes.
Define the following:
Autosomes
Choose the correct answer :
Human sex chromosomes are __________
Differentiate Intersexes from Supersexes.
Identify the female heterogamety from the chromosomal complements given below.
Number of autosomes present in liver cells of a human female is ______.
Fill the blank circles in figure and identify the sex of child A and B. 
