Principles of Inheritance and Variation



Question


Question 1 : Loss of Melanin pigment cause for ___________
1. Depigmentation
2. Alkaptoneuria
3. Colourblindness
4. Phenyl Ketoneuria
Answer
9024

Question 2 : Genetical identification of male human is ________
1. By Sex-chromosome
2. By Autosome
3. By cells
4. By Nucleus
Answer
9025

Question 3 : Rh+ individual gene may be _______
1. Rr
2. TT
4. All of these
Answer
9026

Question 4 : Cause of chromosomal mutation __________
1. Physical effect
2. Euploidy
3. Polyploidy
4. All of these
Answer
9027

Question 5 : Two genes very close on a chromosome will show ____________
1. Only double crossing over
2. Hardly an crossing over
3. High crossing over
4. No crossing over
Answer
9028

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Biology Class XII
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