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प्रश्न
XO type of sex determination and XY type of sex determination are examples of ____________.
विकल्प
Male heterogamety
Female heterogamety
Male homogamety
Both Female heterogamety and Male homogamety
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उत्तर
XO type of sex determination and XY type of sex determination are examples of Male heterogamety.
संबंधित प्रश्न
Explain sex determination in human beings.
A zygote which has inherited an X chromosome from the father will develop into :
(a) baby boy
(b) baby girl
(c) adult
(d) either boy or girl
A couple with a newborn baby is troubled that the child does not resemble either of them. Suspecting that a mixup occurred at the hospital, they check the blood type of the infant. It is type O. Because the father is type A and the mother type B, they conclude that a mixup has definitely occurred. Are they correct? Give reason for your answer.
Write a short note on sex determination in man.
Give Technical Term:
The cell which determines the sex of a baby.
Which of the following is incorrect regarding ZW-ZZ type of sex determination?
Identify the female heterogamety from the chromosomal complements given below.
ZZ/ZW type of sex determination is seen in ______.
In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosomes is/are ______.
- large chromosome
- small chromosome
- Y-chromosome
- X-chromosome
Sex of an individual is determined by different factors in various species. Some animals rely entirely on the environmental ones, while in some other animals the individuals can change their sex during their life time indicating that sex of some species is not genetically determined. However in human beings, the sex of an individual is largely determined genetically.
- In what way are the sex chromosomes 'X' and 'Y' different in size? Name the mismatched pair of sex chromosome in humans.
- Write the number of pair/pairs of sex chromosomes present in human beings. In which one of the parent (male/female) perfect pair/pairs of sex chromosome are present?
- Citing two examples, justify the statement "Sex of an individual is not always determined genetically".
OR
Draw a flow chart to show that sex is determined genetically in human beings.
