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Question
Solution
The sex of the zygote is determined by the sperm which fertilizes the ovum. If an X bearing sperm fuses with an ovum in man, the offspring would be female and if a Y chromosome bearing sperm fuses with an ovum the offspring will be a boy.
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RELATED QUESTIONS
"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.
Write notes on sex determination in the unborn baby.
A normal cell of human body contains 23 pairs of chromosomes. The number of chromosomes in a sex cell (sperm or ovum) of a human being is most likely to be :
(a) 46
(b) 23
(c) 21
(d) 42
XO type of sex determination and XY type of sex determination are examples of ____________.
How many ovum are formed when a diploid cell undergoes meiosis, during oogenesis?
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.
Diploid larvae which get royal jelly as food develops into ____________ and other develops into workers (sterile females).
The number of pairs of sex chromosomes in the zygote of a human being is ______
What is sex determination? Explain the mechanism of sex determination in the case of birds.
