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प्रश्न
In a human, how many chromosmes are present in a brain cell?
उत्तर
In a brain cell in a human has 46 chromosomes.
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संबंधित प्रश्न
If X chromosome is inherited from mother and Y from father, the offspring will be male.
Does genetic combination of mother play a significant role in determining the sex of a new born baby?
The exchange of genetic material takes place in :
(a) vegetative reproduction
(b) asexual reproduction
(c) sexual reproduction
(d) budding
E is the gene for brown eye colour and an is the gene for blue eye colour. which gene is (1) recessive, and (2) dominant?
The person A has only B chromosomes in all its gametes. On the other hand, another person C has chromosome D in half of gametes and chromosome E in the other half of gametes. When chromosomes B and D combine during fertilisation, a female zygote results. On the other hand, combination of B and E chromosomes produces a male zygote.
(a) What are chromosomes (i) B (ii) D, and (iii) E?
(b) Out of B, D and E, which two chromosomes are of the same type?
(c) Which chromosome is smaller in size?
(d) What is the general name of chromosomes such as B and E?
(e) Out of the two persons A and C, which one is (i) male, and (ii) female?
Choose the correct answer:
A man can transfer his sex-linked gene to his ______________
Which of the following is incorrect regarding ZW - ZZ type of sex determination?
Which of the following statements is not true with respect to variation?
