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प्रश्न
Choose the correct answer:
Chromosomes identical in male and female are called __________
विकल्प
sex chromosomes
autosomes
heterosomes
dominant
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उत्तर
Chromosomes identical in male and female are called autosomes
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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.
Name the species used in sericulture. Name the stages in the life cycle of a silk moth in cyclic form.
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
The exchange of genetic material takes place in :
(a) vegetative reproduction
(b) asexual reproduction
(c) sexual reproduction
(d) budding
What is heterogamety ? Explain the mechanism of sex determinatin in Drosophila.
Identify the female heterogamety from the chromosomal complements given below.
Chromosomal constitution of normal human females can be written as ______.
Number of autosomes present in liver cells of a human female is ______.
Grasshopper is an example of XO type of sex determination in which the males have ______.
