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Which of the following is a test cross?

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Important Questions on Principles of Inheritance and Variation

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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-1>Q 64
Which of the following is the best suited for codominance?
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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-1>Q 65
In F2 generation quantitative inheritance ratio 1: 4: 6: 4: 1 is obtained instead of:
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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-1>Q 66
A dihybrid test cross yielding a result of 1: 1: 1: 1 ratio is indicative of
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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-1>Q 67

Inheritance of blood group is:

(a) Codominance

(b) Incomplete dominance

(c) Multiple allelism

(d) Multiple genes

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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-1>Q 68
The phenomenon of a single gene regulating several phenotypes is called
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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-1>Q 69
Genes when close together on a chromosome is called
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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-1>Q 70
In human beings 45 chromosomes/single X / XO abnormality causes
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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-1>Q 71
Both sickle cell anaemia and Huntingtion's chorea are