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Barr bodies and drumsticks are of what significance to geneticists and biologists

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Important Questions on Principles of Inheritance and Variation

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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 17
A family has five girls and no son. Probability of son as the 6th child will be
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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 18
Barr bodies are
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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 19
Which one of the following conditions correctly describes the manner of determining the sex in the given example?
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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 20
In our society women are blamed for producing female children. Choose the correct answer for the sexdetermination in humans
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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 21
Foetal sex can be determined by examining cells from amniotic fluid looking for
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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 22
Chromosomes that determine the male sex in Melandrium plant is
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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 23
Male child will be born if
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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 24
Barr body in mammals represents.