HARD
12th Tamil Nadu Board
IMPORTANT
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What can be the blood group of offspring when both parents have AB blood group?

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Important Questions on Principles of Inheritance and Variation

HARD
12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 9
If the child's blood group is 'O' and father's blood group is "A" and the mother’s blood group is "B" the genotype of the parents will be
HARD
12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 10
XO type of sex determination and XY type of sex determination are examples of
EASY
12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 11
In an accident there is great loss of blood and there is no time to analyse the blood group which blood can be safely transferred?
HARD
12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 12
Father of a child is colour-blind and mother is a carrier for colour blindness, the probability of the child being colour-blind is
HARD
12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 13
A marriage between a colour-blind man and a normal woman produces
MEDIUM
12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 14
Mangolism is a genetic disorder which is caused by the presence of an extra chromosome number
HARD
12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 15
Klinefelter's syndrome is characterized by a karyotype of
HARD
12th Tamil Nadu Board
IMPORTANT
Biology Zoology Standard 12>Chapter 4 - Principles of Inheritance and Variation>Evaluation>Q 16
Females with Turner's syndrome have