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प्रश्न
What is male heterogamety?
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उत्तर
Male heterogamety (XY males) is a type of sex determination in which males produce two different types of gametes. For example, human males produce two kinds of sperms that is sperm with X- chromosome and sperms with Y- chromosome.
संबंधित प्रश्न
If X chromosome is inherited from mother and Y from father, the offspring will be male.
Fill in the following blank with suitable word :
The...............chromosomes for a ............are XX whereas that for a ..............are XY.
If a normal human cell has 46 chromosomes, how many chromosomes will be there in a human sperm cell?
Drone of the honeybees shows haploid number of chromosomes. Illustrate.
Give Reason:
Why X-linked recessive diseases are more common among males than females.
Explain the haplo-diploid method of sex determination in the honey bee.
Brief about female heterogamety.
How is sex determined in human beings?
Also describe as to, who determines the sex of an unborn child? Mention whether temperature has a role in sex determination.
What did H. Henking originally call the nuclear structure he discovered during his 1891 study of squash bug spermatogenesis?
