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प्रश्न
Differentiate between male and female heterogamety
उत्तर
Heterogamety means different sex gametes.
Male heterogamety includes human males having XY sex chromosomes and males of some insects, such as grasshopper and bugs, having XO sex chromosomes.
Female heterogamety includes females of some species of birds, fishes and insects. Females of butterfly and moth consist ZO sex chromosomes, while females of fish, reptiles and birds consist ZW sex chromosomes.
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संबंधित प्रश्न
In a human, how many chromosmes are present in an egg which has just been produced by the ovary?
Name any two genetic in humans.
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Identical twins
Read the following statements and select the correct option.
i. If sperm containing Y chromosome fertilizes the ovum, then diploid zygote is formed that grows into a male child.
ii. If sperm containing X chromosome fertilizes ovum, then diploid zygote is formed, that grows into a female child.
From the following which option correctly represents the normal genetic constitution of a ovum?
There are five daughters and no son in a family. It is because
Which of the following is incorrect regarding ZW - ZZ type of sex determination?
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Human offspring’s sex is determined ______
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