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प्रश्न
Give Reason:
Why X-linked recessive diseases are more common among males than females.
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उत्तर
Because females have two copies of the X-Chromosome and males have only one X- chromosome.
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संबंधित प्रश्न
How is the sex of the child determined in human beings?
Define the following:
Autosomes
Write the functional activity of the following structure:
Heterosomes
Match the items of Column I with Column II:
| Column I | Column II | ||
| i. | XX-XO method of Sex Determination | a. | Turner syndrome |
| ii. | XX-XY method of Sex Determination | b. | Female heterog ametic |
| iii. | karyotype-45 | c. | Grasshopper |
| iv. | ZW-ZZ method of Sex Determination | d. | Female homogametic |
Chromosomal constitution of normal human females can be written as ______.
A trait in an organism is influenced by
Also describe as to, who determines the sex of an unborn child? Mention whether temperature has a role in sex determination.
Which of the following group shows ZW-ZZ type of sex determination?
What is the probability of a girl or a boy being born into a family? Justify your answer.
In the ZW–ZZ sex determination system, which sex is heterogametic?
