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.