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Principles of Inheritance and Variation · Question 14

NEET (UG) 2024MCQEasy📈 Topic in 50% papers+4−1
1

A pink flowered Snapdragon plant was crossed with a red flowered Snapdragon plant. What type of phenotype/s is/are expected in the progeny?

  1. Only red flowered plants
  2. Red flowered as well as pink flowered plants
  3. Only pink flowered plants
  4. Red, Pink as well as white flowered plants

Answer

(2) Red flowered as well as pink flowered plants

Solution

Flower colour in snapdragon shows incomplete dominance: RR = red, Rr = pink, rr = white.

Pink (Rr) red (RR) gives RR : Rr = 1 : 1.

Progeny: 50% red flowered and 50% pink flowered plants.

Answer: (2)

NEET (UG) 2024

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2

In a plant, black seed color (BB/Bb) is dominant over white seed color (bb). In order to find out the genotype of the black seed plant, with which of the following genotype will you cross it?

  1. BB
  2. bb
  3. Bb
  4. BB/Bb
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3

Match List I with List II Choose the correct answer from the options given below:

  1. A-I, B-II, C-III, D-IV
  2. A-II, B-I, C-III, D-IV
  3. A-III, B-IV, C-I, D-II
  4. A-IV, B-III, C-II, D-I
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4

Match List I with List II : Choose the correct answer from the options given below :

  1. A-I, B-II, C-III, D-IV
  2. A-II, B-III, C-IV, D-I
  3. A-III, B-IV, C-I, D-II
  4. A-IV, B-I, C-II, D-III
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5

As per ABO blood grouping system, the blood group of father is B+, mother is A+ and child is O+. Their respective genotype can be Choose the most appropriate answer from the options given below :

  1. A only
  2. B only
  3. C & B only
  4. D & E only
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6

Given below are two statements: In the light of the above statements, choose the correct answer from the options given below.

  1. Statement I is true but Statement II is false
  2. Statement I is false but Statement II is true
  3. Both Statement I and Statement II are true
  4. Both Statement I and Statement II are false
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7

Match List-I with List-II: Choose the correct answer from the options given below:

  1. A-III, B-IV, C-II, D-I
  2. A-II, B-I, C-IV, D-III
  3. A-II, B-III, C-I, D-IV
  4. A-IV, B-I, C-III, D-II
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8

Given below are two statements: In the light of the above statements, choose the correct answer from the options given below:

  1. Statement I is true but Statement II is false
  2. Statement I is false but Statement II is true
  3. Both Statement I and Statement II are true
  4. Both Statement I and Statement II are false
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9

When a tall pea plant with round seeds was selfed, it produced the progeny of : (a) Tall plants with round seeds and (b) Tall plants with wrinkled seeds. Identify the genotype of the parent plant.

  1. TtRr
  2. TtRR
  3. TTRR
  4. TTRr
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10

Aneuploidy is a chromosomal disorder where chromosome number is not the exact copy of its haploid set of chromosomes, due to : Choose the most appropriate answer from the options given below :

  1. C and D only
  2. D and E only
  3. A and B only
  4. B and C only
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11

The mother has A+ blood group, the father has B+ and the child is A+. What can be the possibility of genotypes of all three, respectively? Choose the correct answer from the options given below:

  1. C and D
  2. D and A
  3. A and B
  4. B and E
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