Principles of Inheritance and Variation · Question 9

What is the pattern of inheritance for polygenic trait?

1. Autosomal dominant pattern
2. X-linked recessive inheritance pattern
3. Mendelian inheritance pattern
4. Non-Mendelian inheritance pattern

With the help of given pedigree, find out the probability for the birth of a child having no disease and being a carrier (has the disease mutation in one allele of the gene) in F3 generation. [figure]

1. 1/8
2. Zero
3. 1/4
4. 1/2

Genes R and Y follow independent assortment. If RRYY produce round yellow seeds and rryy produce wrinkled green seeds, what will be the phenotypic ratio of the F2 generation?

1. Phenotypic ratio - 9 : 3 : 3 : 1
2. Phenotypic ratio - 9 : 7
3. Phenotypic ratio - 1 : 2 : 1
4. Phenotypic ratio - 3 : 1

Which one of the following can be explained on the basis of Mendel's Law of Dominance? Choose the correct answer from the options given below:

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

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

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

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

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

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

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