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प्रश्न
ZZ/ZW type of sex determination is seen in ______.
विकल्प
Peacock
Cockroach
Platypus
Snails
apple snail
human
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उत्तर
ZZ/ZW type of sex determination is seen in peacock.
Explanation:
The ZZ/ZW type of sex determination is seen in birds, many fishes, and reptiles. In this system, the female is heterogametic (ZW), meaning she produces two types of eggs,one with the Z chromosome and one with the W chromosome. The male is homogametic (ZZ), producing only one type of sperm with the Z chromosome.
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संबंधित प्रश्न
Write the types of sex-determination mechanisms the following crosses show. Give an example of each type.
(i) Female XX with Male XO
(ii) Female ZW with Male ZZ
Write notes on sex determination in the unborn baby.
Explain how, sex is determined in human babies.
If a normal human cell has 46 chromosomes, how many chromosomes will be there in a human (i) sperm cell, and (ii) zygote?
In a human, how many chromosmes are present in a fertilised egg?
The exchange of genetic material takes place in :
(a) vegetative reproduction
(b) asexual reproduction
(c) sexual reproduction
(d) budding
The number of pair(s) of sex chromosomes in the zygote of humans is :
(a) one
(b) two
(c) three
(d) four
Define the following:
Autosomes
Define the following:
Sex chromosomes
Write a short note on sex determination in man.
Complete the following sentence with appropriate word:
______are the alternative forms of a gene producing different effects.
What is parthenogenesis?
How drones are produced in honey bees?
Differentiate Intersexes from Supersexes.
What is male heterogamety?
Brief about female heterogamety.
How many ovum are formed when a diploid cell undergoes meiosis, during oogenesis?
There are five daughters and no son in a family. It is because
In XO type of sex determination ______.
The number of pairs of sex chromosomes in the zygote of a human being is ______
Which of the following decides the sex of the child?
The maleness of a child is determined by ______
If a normal cell of the human body contains 46 pairs of chromosomes then the numbers of chromosomes in a sex cell of a human being is most likely to be ______
The maleness of a child is determined by
Select the incorrect statement
Sex in honey bee is determined by ______.
What is the probability of a girl or a boy being born into a family? Justify your answer.
How is the sex of a newborn individual determined in different species of animals? Give three examples to support your answer.
