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प्रश्न
Brief about female heterogamety.
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उत्तर
Female heterogamety (ZO females) refers to the condition, where female produces two types of egg cells. Some with Z chromosome and some without Z chromosome.
संबंधित प्रश्न
Which of the following is an example of ZW – ZZ type of mechanism of sex determination?
- E is the gene for brown eye colour and e is the gene for blue eye colour. Which gene is (i) recessive, and (ii) dominant?
- Both father and mother have the genes Ee in their cells. What colour are their eyes?
- Which combination of genes in the zygote will produce children with blue eyes?
- Which combinations of genes in the zygote will produce children with brown eyes?
Which combination of genes in the zygote will produce children with blue eyes?
Explain the mechanism of sex determination in birds.
Identify the female heterogamety from the chromosomal complements given below.
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.
Which of the following organisms has haploid number of chromosomes?
Select the incorrect statement
A zygote which has Y chromosome inherited from the father will develop into a ______.
In 1891, H. Henking studied spermatogenesis in squash bugs and observed that a specific nuclear structure was present in what percentage of the resulting sperms?
