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Fraternal twins are produced when ?

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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 2
Identical twins are
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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 3

An organism which receives identical alleles of a particular gene from both parents is

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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 4

Study of improvement of human race by providing ideal nature is

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Improvement of genetic characters and present day generation on the basis of best nutrition and training is called

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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 5
The best method to improve the genetic quality of mankind is
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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 6
Study of human race is called
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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 7
'Eugenics' pertains to
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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 8

Sometimes the separation of twins is incomplete and these are born attached or remain so even after. Such twins are known as

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Conjoint twins are also known as

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NTA Errorless Biology Volume-2>Chapter 5 - Principles of Inheritance and Variation>Ordinary Thinking>Q 9

Genetically identical progeny is produced when the individual