Principle Of Inheritance And Variation Question 402

Question: Match the column-I with column-II and choose the correct option._

Column-I Column-II A. Incomplete dominance I. Drosophila B. Mendelian disorder II. Antirrhinum sp. C. Transforming principle III. Griffith D. Dihybrid cross IV. Haemophilia

Options:

A) A-I; B-IV; C-III; D-II

B) A-IV; B-II; C-III; D-I

C) A-II; B-III; C-IV; D-I

D) A-II; B-IV; C-III; D-I

Show Answer

Answer:

Correct Answer: D

Solution:

[d] Incomplete dominance (discovered by Correns) is the phenomenon where the dominant allele does not completely express itself.

The inheritance of flower colour in Antirrhinum sp.

is a good example of incomplete dominance.

Haemophilia is a sex linked recessive disease.

It is a type of Mendelian disorder since its inheritance follows the principles of Mendelian genetics and can be traced in a family by pedigree analysis.

Transforming principle was given by Griffith.

Dihybrid cross is a cross when two allelic pair are used for crossing.

Several dihybrid crosses were carried out in Drosophila to study genes that were sex linked.