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प्रश्न
The number of pair(s) of sex chromosomes in the zygote of humans is :
(a) one
(b) two
(c) three
(d) four
उत्तर
The number of sex chromosomes in the zygote of humans is two-- XX in females and XY in males.
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संबंधित प्रश्न
"The sex of a newborn child is a matter of chance and none of the parents may be considered responsible for it". Draw a flow chart showing determination of sex of a newborn to justify this statement.
How is the sex of the child determined in human beings?
Write notes on sex determination in the unborn baby.
Which of the following is an example of ZW – ZZ type of mechanism of sex determination?
Which of the two, sperm or ovum, decides the sex of the child?
The sex of a child is determined by which of the following?
(a) the length of the mother's pregnancy
(b) the length of time between ovulation and copulation
(c) the presence of and X chromosome in an ovum
(d) the presence of a Y chromosome in a sperm
With the help of a chart, explain the method of sex determination in honeybees.
Give Reason:
Why X-linked recessive diseases are more common among males than females.
There are five daughters and no son in a family. It is because
In humans, males are heterogametic and females are homogametic. Explain. Are there any examples where males are homogametic and females heterogametic?
