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प्रश्न
What is haplodiploidy?
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उत्तर
In haplodiploidy, the sex of the offspring is determined by the number of sets of chromosomes it receives. Fertilized eggs develop into females (Queen or Worker) and unfertilized eggs develop into males (drones) by parthenogenesis. It means that the males have half the number of chromosomes (haploid) and the females have double the number (diploid).
संबंधित प्रश्न
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:
Chromosomes identical in male and female are called __________
With the help of a chart, explain the method of sex determination in honeybees.
Give Reason:
Why X-linked recessive diseases are more common among males than females.
Write the functional activity of the following structure:
Heterosomes
What is male heterogamety?
Explain the mode of sex determination in honeybees.
Identify the organism in which ZZ-ZW type of sex determination is observed.
The number of pairs of sex chromosomes in the zygote of a human being is ______
The number of pair (s) of sex chromosomes in the zygote of humans is
