HARD
12th Manipur Board
IMPORTANT
Earn 100

A haemophilic man marries a woman whose mother was normal but her father was haemophilic. What percentage of childern would be there to be haemophilic. Explain it with necessary crossing.

Important Questions on Principles of Inheritance and Variation

HARD
12th Manipur Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Manipur Board-2019>Q 4
A normal woman, whose father was colour blind is married to a normal man. The son would be 
MEDIUM
12th Manipur Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Manipur Board-2019>Q 6
How many X chromosome (s) and how many autosomes (s) are present in human ovum?
MEDIUM
12th Manipur Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Manipur Board-2020>Q 8
Which of the following indicates the sign Question Image in the human pedigree analysis?
MEDIUM
12th Manipur Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Manipur Board-2020>Q 9
Mention one cause of frameshift mutation. 
EASY
12th Manipur Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Manipur Board-2020>Q 10
Why is a recessive allele unable to express itself in the heterozygous state?
MEDIUM
12th Manipur Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Manipur Board-2020>Q 11
How is sex determined in honeybee? 
HARD
12th Manipur Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Manipur Board-2020>Q 13
'The human ABO blood group is considered a good example of co-dominance and multiple alleles'. Analyse the statement by giving suitable reasons.
MEDIUM
12th Manipur Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Manipur Board-2018>Q 1
Phenotypic and genotypic ratios are similar in