In the male human being, sperms contain autosomes and
1. Only one Y-chromosome
2. Only one X-chromosome
3. Both X and Y-chromosome
4. Either X or Y-chromosome
Subtopic: Sex Determination in Humans |
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In humans, the sex of the baby is determined:
1. At the time of fertilization and by the father
2. At the time of fertilization and by the mother
3. At the time of implantation and by the father
4. At the time of implantation and by the mother
Subtopic: Sex Determination in Humans |
82%
From NCERT
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Assertion (A): In human males, 50 percent of sperms carry the X chromosome while the other 50 percent carry the Y.
Reason (R): Human males have XY sex chromosomes.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason (R): Human males have XY sex chromosomes.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Sex Determination in Humans |
83%
From NCERT
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