Nursing quiz

Genetics Quiz

Genetics Quiz - 1

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1. Father of genetics is:

A. Mendel

B. Darwin

C. Muller

D. Bateson

Answer Key

2. Phenotypic monohybrid ratio is:

A. 9 : 3 : 3 : 1

B. 1 : 2 : 1

C. 3 : 1

D. 2 : 1

Answer Key

3. A single recessive allele will produce its phenotypic effect when it occurs on:

A. Any chromosome

B. An autosome

C. X-chromosome of female

D. X-chromosome of male

Answer Key

4. Sickle cell anaemia is:

A. Autosomal heriditary disease

B. Allosomic heriditary disease

C. Epistatic effect

D. Nutritional disorder

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5. In multiple allele system, a gamate has alleles:

A. One

B. Two

C. Three

D. many

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6. Mendel's first law is law of:

A. Paired factors

B. Dominance

C. Segregation

D. Independent assortment

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7. A gene influencing many traits is:

A. Additive

B. Pleiotropic

C. Epistatic

D. Supplementary

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8. A genetic disorder in Africans which reduces oxygen uptake is:

A. Phenylketonuria

B. Haemophilia

C. Colour blindness

D. Sickle cell anaemia

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9. Discontinous variations are due to:

A. Crossing over

B. Mutations

C. Segregation of chromosomes

D. Independent assortment

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10. Exchange of segments between non homologous chromosomes is called:

A. Crossing over

B. Inversion

C. Duplication

D. Translocation

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11. A couple has two girls. the probability of a third girl baby is:

A. 100%

B. 50%

C. 25%

D. 12.5%

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12. Sex chromosomes are also called:

A. Allosomes

B. Hetrosomes

C. Autosomes

D. Euchromosomes

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13. Dihybrid test cross is:

A. 1 : 1 : 1 : 1

B. 1 : 1

C. 9 : 3 : 3 : 1

D. 15 : 1

Answer Key

14. Match the condition with chromosomal abnormlity or linkage.

A. Colour blindness-- Y-linked

B. Erythroblastosis fetalis-- X-linked

C. Klinfelter's syndrome-- 44 + XXY

D. Down's syndrome-- 44 + XO

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15. Trisomy 21 is otherwise called:

A. Klinfelter's syndrome

B. Turner's syndrome

C. Sickle cell anaemia

D. Down's syndrome

Answer Key

Answer Key
1. A
2. C
3. D
4. A
5. A
6. C
7. B
8. D
9. B
10. D
11. B
12. A
13. A
14. C
15. D
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References
  1. Nettina, Sandra M.; Mills, Elizabeth Jacqueline. Lippincott Manual of Nursing Practice, 8th Edition. Copyright ©2006 Lippincott Williams & Wilkins.
  2. Bhatti K. Dinesh Companion to Biology. S. Dinesh & Co. New Delhi, 2009.
This page was last updated on:5/10/2020