MEDIUM
12th CBSE
IMPORTANT
Earn 100

What will never be father's blood group if the mother has blood group B and child blood group O?

42.86% studentsanswered this correctly

Important Questions on Principles of Inheritance and Variation

MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 13
Mendel’s Law of independent assortment holds good for genes situated on the
EASY
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 14
Occasionally, a single gene may express more than one effect. The phenomenon is called
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 15
In a certain taxon of insects, some have 17 chromosomes and the others have 18 chromosomes. The 17 and 18 chromosome bearing organisms are
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 16
The inheritance pattern of a gene over generations among humans is studied by the pedigree analysis. Character studied in the pedigree analysis is equivalent to
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 17
It is said that Mendel proposed that the factor controlling any character is discrete and independent. His proposition was based on the
EASY
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 18
Which of the following represents a pair of contrasting characters?
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 19
Two genes ‘A’ and 'B’ are linked. In a dihybrid cross involving these two genes, the F1 heterozygote is crossed with homozygous recessive parental type (aa bb). What would be the ratio of offspring in the next generation?
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 20
In the F2 generation of a Mendelian dihybrid cross, the number of phenotypes and genotypes are