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प्रश्न
Write the functional activity of the following structure:
Heterosomes
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उत्तर
Sex-determination.
APPEARS IN
संबंधित प्रश्न
Answer the following questions related to sex determination in human beings:
i. What is sex chromosome?
ii. How many pairs of chromosomes are present in human beings?
iii. How is the sex of the human offspring determined?
iv. Draw a diagram depicting sex determination in man.
Fill in the following blank with suitable word :
Genes always work in ................ .
In a human, how many chromosmes are present in a brain cell?
In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosomes is/are :
(i) large chromosome
(ii) small chromosome
(iii) Y chromosome
(iv) X chromosome
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
A family consists of two parents and their five children and the pedigree chart below shows the inheritance of the trait colour blindness in them.
Who is colour blind in the parents – the Father or the Mother?
Define the following:
Autosomes
Distinguish between heterogametic and homogametic sex determination systems.
Which of the following decides the sex of the child?
Does a male child inherit X chromosome from his father? Justify.
