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12th Tamil Nadu Board
IMPORTANT
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ZW-ZZ system of sex determination occurs in

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Important Questions on Principles of Inheritance and Variation

EASY
12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 20
Co-dominant blood group is
HARD
12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 21
Which of the following is incorrect regarding ZW-ZZ type of sex determination?
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12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 22
What is haplodiploidy?
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12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 23
Distinguish between heterogametic and homogametic sex determination systems.
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12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 24
What is Lyonisation?
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12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 26
Why are sex linked recessive characters more common in the male human beings?
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12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 28
Mention the symptoms of Phenylketonuria.
HARD
12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 29
Mention the symptoms of Down syndrome.