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Question
Name any two genetic in humans.
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Solution
Colour-blindness, Thalassaemia, Sickle cell anaemia and Haemophilia
RELATED QUESTIONS
Write the types of sex-determination mechanisms the following crosses show. Give an example of each type.
(i) Female XX with Male XO
(ii) Female ZW with Male ZZ
Explain the mechanism of sex determination in birds.
How is the sex of the child determined in human beings?
Choose the correct answer:
Males have more chances of suffering from sex-linked disease because of ___________
In which livings, female decides the sex? Give two examples.
Give Reason:
Why X-linked recessive diseases are more common among males than females.
Differentiate Intersexes from Supersexes.
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 of the following decides the sex of the child?
A zygote which has an X-chromosome inherited from the father will develop into a
