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प्रश्न
Differentiate between male and female heterogamety.
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उत्तर
Male heterogamety: 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: 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.
संबंधित प्रश्न
Define the following:
Sex chromosomes
Choose the correct answer:
Males have more chances of suffering from sex-linked disease because of ___________
How drones are produced in honey bees?
Which of the following is incorrect regarding ZW-ZZ type of sex determination?
What is haplodiploidy?
What is Lyonisation?
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.
Diploid larvae which get royal jelly as food develops into ____________ and other develops into workers (sterile females).
ZZ/ZW type of sex determination is seen in ______.
Grasshopper is an example of XO type of sex determination in which the males have ______.
Which of the following combination of chromosome numbers represents the correct sex determination pattern in honey bees?
A zygote which has an X-chromosome inherited from the father will develop into a ______.
Which of the following is an example of genetic variation?
Which of the following determines the sex of a child?
The maleness of a child is determined by
Select the incorrect statement
Which of the following statements is not true with respect to variation?
How many types of gametes are produced by a human female?
