Principles Of Inheritance And Variation — DPP 3

15 NEET questions from Principles Of Inheritance And Variation, with answers and explanations. Attempt it as a timed test to get scoring, accuracy breakdown and mistake tracking.

Attempt this test free 20 questions · 30 minutes · +80 marks
1
Crossing AABB & aabb, the probability of AaBb in $\mathrm { F } _ { 2 }$ generation would be :-
  1. A $1 / 16$
  2. B $2 / 16$
  3. C $8 / 16$
  4. D $4 / 16$
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Correct answer: D

2
According to Mendelism which character is showing dominance :-
  1. A Terminal position of flower
  2. B Green colour in seed
  3. C Wrinkled seeds
  4. D Green pod colour
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Correct answer: D

3
Which technique is used by Mendel for hybridisation :-
  1. A Emasculation
  2. B Bagging
  3. C Protoplast fusion
  4. D Both (A) and (B)
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Correct answer: D

4
The phenotypic ratio in a back cross between a trihybrid and homozygous recessive parent would be :-
  1. A $1 : 1$
  2. B $1 : 1 : 1 : 1$
  3. C $1 : 1 : 1 : 1 : 1 : 1$
  4. D $1 : 1 : 1 : 1 : 1 : 1 : 1 : 1$
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Correct answer: D

5
One of the following did not constitute the seven contrasting pairs of characters noticed by Mendel?
  1. A Height of the plants
  2. B Shape of the leaves
  3. C Shape of pod
  4. D Colour of pod
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Correct answer: B

6
Among the seven characters in pea plant, studied by Mendel, the number of characters related to flower, pod and seed respectively was:-
  1. A 2, 2, 2
  2. B 2, 2, 1
  3. C 1, 2, 2
  4. D 1, 1, 2
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Correct answer: A

7
A cross between pure tall pea plant with green pods and dwarf pea with yellow pods will produce how many tall $\mathrm{F _ { 2 }}$ plants, out of 16 ?
  1. A 15
  2. B 13
  3. C 12
  4. D 7
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Correct answer: C

8
When an $\mathrm{F _ { 1 }}$ individual is crossed with its either of the two parent. Then it is known as:-
  1. A Test cross
  2. B Back cross
  3. C Reciprocal cross
  4. D Monohybrid cross
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Correct answer: B

9
Genetic constitution of an individual is represented by :-
  1. A Genome
  2. B Genotype
  3. C Phenotype
  4. D Karyotype
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Correct answer: B

10
Mendel's Principle of segregation means that the gamete cells always receive :-
  1. A one pair of alleles
  2. B one quarter of the genes
  3. C one of the paired alleles
  4. D any pair of alleles
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Correct answer: C

11
How many gametes are produced in $F _ { 1 }$ generation of a trihybrid :-
  1. A 3
  2. B 4
  3. C 8
  4. D 16
Show answer

Correct answer: C

12
When a plant has two different alleles of a gene then it is called :-
  1. A Homozygous
  2. B Dioecious
  3. C Heterozygous
  4. D Monoecious
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Correct answer: C

13
Law of independent assortment of Mendel was proved by :-
  1. A Monohybrid cross
  2. B Reciprocal cross
  3. C Dihybrid cross
  4. D Back cross
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Correct answer: C

14
Which one of the following traits of garden pea studied by Mendel, was a recessive feature?
  1. A Axial flower position
  2. B Green seed colour
  3. C Green pod colour
  4. D Round seed shape
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Correct answer: B

15
Some of the dominant traits studied by Mendel were :-
  1. A Round seed shape, constricted pod shape and axial flower position
  2. B Yellow seed colour, inflated pod shape and axial flower position
  3. C Yellow seed colour, violet flower colour and yellow pod colour
  4. D Axial flower position, green pod colour and green seed colour
Show answer

Correct answer: B

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