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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.
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
Differentiate between male and female heterogamety
Explain the mechanism of sex determination in birds.
What are the chromosomes XY and XX known as?
The exchange of genetic material takes place in :
(a) vegetative reproduction
(b) asexual reproduction
(c) sexual reproduction
(d) budding
The sex of a child is determined by which of the following?
(a) the length of the mother's pregnancy
(b) the length of time between ovulation and copulation
(c) the presence of and X chromosome in an ovum
(d) the presence of a Y chromosome in a sperm
ZW-ZZ system of sex determination occurs in
Identify the organism in which ZZ-ZW type of sex determination is observed.
Sex is determined in human beings ______.
ZZ / ZW type of sex determination is seen in ______.
The sex chromosome in a human ovum is ______.
