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Principles of Inheritance and Variation · Question 15

NEET (UG) 2024MCQEasy📈 Topic in 38% papers+4−1
1

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

Answer

(2) bb

Solution

The genotype of an organism showing the dominant phenotype is found by a test cross, i.e. crossing it with the homozygous recessive (bb).

If all progeny are black, the plant is BB; if black and white appear in 1 : 1 ratio, the plant is Bb.

Answer: (2)

NEET (UG) 2024

Keep practising — Principles of Inheritance and Variation

2

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
NEET (UG) 2024
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-III, C-IV, D-I
  3. A-III, B-IV, C-I, D-II
  4. A-IV, B-I, C-II, D-III
NEET (UG) 2024
4

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
NEET (UG) 2024
5

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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6

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
RE-NEET (UG) 2024
7

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
RE-NEET (UG) 2024
8

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
RE-NEET (UG) 2024
9

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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10

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
RE-NEET (UG) 2024
11

Frequency of recombination between gene pairs on same chromosome as a measure of the distance between genes to map their position on chromosome, was used for the first time by

  1. Sutton and Boveri
  2. Alfred Sturtevant
  3. Henking
  4. Thomas Hunt Morgan
NEET (UG) 2023

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