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प्रश्न
Name the species used in sericulture. Name the stages in the life cycle of a silk moth in cyclic form.
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उत्तर
Species used in sericulture is Bombyx Mori - it produces mulberry silk.
Various stages in life cycle of silk moth in cyclic form are
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संबंधित प्रश्न
Which of the following is an example of ZW – ZZ type of mechanism of sex determination?
A zygote which has inherited an X chromosome from the father will develop into :
(a) baby boy
(b) baby girl
(c) adult
(d) either boy or girl
Define the following:
Autosomes
Drone of the honeybees shows haploid number of chromosomes. Illustrate.
How drones are produced in honey bees?
Explain the mechanism of sex determination in birds.
Explain the mode of sex determination in honeybees.
Given below are two statements:
Statement - I: The male Drosophila has a pair of homomorphic sex chromosomes.
Statement - II: The male human being has a pair of heteromorphic sex chromosomes.
In the light of above statements, Choose the most appropriate answer from the options given below:
In the XX–XY sex determination system, if a female (XX) is fertilized by an X-bearing sperm, what is the resulting genotype of the offspring?
