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प्रश्न
Define the following:
Sex-linked characters
उत्तर
Sex-linked characters - Such characters or traits that are controlled by genes occurring on sex chromosomes are called sex linked characters.
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संबंधित प्रश्न
Which of the two, sperm or ovum, decides the sex of the child?
Both father and mother have the genes Ee in their cells. What colour are their eyes?
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?
Explain the following terms:
Identical twins
Choose the correct answer:
A single recessive trait, able to express must be on _________
Give Reason:
Why X-linked recessive diseases are more common among males than females.
What is parthenogenesis?
XO type of sex determination and XY type of sex determination are examples of ____________.
There are five daughters and no son in a family. It is because
ZZ / ZW type of sex determination is seen in ______.
