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प्रश्न
Choose the correct answer :
Human sex chromosomes are __________
पर्याय
X and O
Y and O
X and Y
none of these
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उत्तर
Human sex chromosomes are X and Y
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संबंधित प्रश्न
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
Answer the following question:
How is sex determined in human beings? Explain with the help of a diagram.
Complete the following sentence with appropriate word:
______are the alternative forms of a gene producing different effects.
Differentiate Intersexes from Supersexes.
Which of the following organisms has haploid number of chromosomes?
Haplodiploidy is found in ______.
A woman has only daughters. Analyse the situation genetically and provide a suitable explanation.
Fill the blank circles in figure and identify the sex of child A and B.
Also describe as to, who determines the sex of an unborn child? Mention whether temperature has a role in sex determination.
Does a male child inherit X chromosome from his father? Justify.
