HARD
12th Manipur Board
IMPORTANT
Earn 100

'The human ABO blood group is considered a good example of co-dominance and multiple alleles'. Analyse the statement by giving suitable reasons.

Important Questions on Principles of Inheritance and Variation
MEDIUM
12th Manipur Board
IMPORTANT
Phenotypic and genotypic ratios are similar in

MEDIUM
12th Manipur Board
IMPORTANT
What is pleiotropy? Give one example of it.

HARD
12th Manipur Board
IMPORTANT
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.

HARD
12th Manipur Board
IMPORTANT
A normal woman, whose father was colour blind is married to a normal man. The son would be

MEDIUM
12th Manipur Board
IMPORTANT
Describe the symptoms of Down's syndrome.

MEDIUM
12th Manipur Board
IMPORTANT
How many X chromosome (s) and how many autosomes (s) are present in human ovum?

MEDIUM
12th Manipur Board
IMPORTANT
A child has a blood group O. If the father has blood group A and the mother has blood group B. Work out the genotypes of the parents and the possible genotypes of the other offspring.

MEDIUM
12th Manipur Board
IMPORTANT
Which of the following indicates the sign

