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प्रश्न
Complete the following sentence with appropriate word:
______are the alternative forms of a gene producing different effects.
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उत्तर
Alleles are the alternative forms of a gene producing different effects.
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संबंधित प्रश्न
Which of the two, sperm or ovum, decides the sex of the child?
In a human, how many chromosmes are present in a brain cell?
In a human, how many chromosmes are present in an egg which has just been produced by the ovary?
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
Give Technical Term:
The cell which determines the sex of a baby.
Explain the mechanism of sex determination in birds.
ZW-ZZ system of sex determination occurs in
Explain the mode of sex determination in honeybees.
Identify the female heterogamety from the chromosomal complements given below.
Some dinosaurs had feathers although they could not fly but birds have feathers that help them to fly. In the context of evolution this means that
