Advertisements
Advertisements
प्रश्न
Answer the following question:
How is sex determined in human beings? Explain with the help of a diagram.
Advertisements
उत्तर
- In human beings, the gametes from the male parent decide the sex of the baby.
- In human beings, there are 22 pairs of autosomes and 1 pair of sex chromosomes.
- In human male gametes, two dissimilar sex chromosomes XY are present whereas in females two similar sex chromosomes XX are present.
- All children inherit 'X' chromosomes from their mother and 'X or 'Y' from their father.
- If it is X chromosome from father, then the offspring will be a daughter, and if 'Y' chromosomes, then it will be a son.
- Hence, the gametes from the male parent decide the sex of the baby.
APPEARS IN
संबंधित प्रश्न
The human animal which has an XY pair of chromosomes is called :
(a) male
(b) hybrid
(c) female
(d) doomed
Explain the following terms:
Identical twins
In which livings, female decides the sex? Give two examples.
Write the functional activity of the following structure:
Heterosomes
Brief about female heterogamety.
Which of the following develops through parthenogene is?
Which of the following is incorrect regarding ZW - ZZ type of sex determination?
Grasshopper is an example of XO type of sex determination in which the males have ______.
Which of the following statements is not true with respect to variation?
Which of the following organisms exhibits the XX–XY sex determination system?
