Advertisements
Advertisements
प्रश्न
Does a male child inherit X chromosome from his father? Justify.
उत्तर
XY chromosomes are present in male children. A boy is born when sperm from a Y chromosome unites with an ovum, whereas a girl is born when sperm from an X chromosome fuses with an ovum. This implies that the father cannot pass on the X chromosome to the son. The mother gives him the X chromosome.
APPEARS IN
संबंधित प्रश्न
Name two animals which have nineteen pairs of chromosomes.
________ shows haplo-diploid type of sex-determination.
Give Reason:
Why X-linked recessive diseases are more common among males than females.
Read the following statements and select the correct option.
i. If sperm containing Y chromosome fertilizes the ovum, then diploid zygote is formed that grows into a male child.
ii. If sperm containing X chromosome fertilizes ovum, then diploid zygote is formed, that grows into a female child.
ZZ / ZW type of sex determination is seen in ______.
A man with blood group A marries a woman having blood group O. What will be the blood group of the child?
How many types of gametes are produced by a human female?
Which of the following group shows ZW-ZZ type of sex determination?
