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प्रश्न
Choose the correct answer :
Human sex chromosomes are __________
विकल्प
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
There are two sets of chromosomes in the zygote.
Explain the following terms:
Identical twins
Complete the following sentence with appropriate word:
______are the alternative forms of a gene producing different effects.
Explain the mode of sex determination in honeybees.
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.
Which type of sex determination is observed in honey bee?
ZZ/ZW type of sex determination is seen in ______.
A woman has only daughters. Analyse the situation genetically and provide a suitable explanation.
What is sex determination? Explain the mechanism of sex determination in the case of birds.
How is the sex of a newborn individual determined in different species of animals? Give three examples to support your answer.
