HARD
12th West Bengal Board
IMPORTANT
Earn 100

Distinguish between primary constriction and secondary constriction.

Important Questions on Heredity and Variation

HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 5 - Heredity and Variation>EXERCISE>Q 8

Distinguish between sex linkage and autosomal linkage.

HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 5 - Heredity and Variation>EXERCISE>Q 9

Distinguish between Haemophilia A and haemophilia B.

HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 5 - Heredity and Variation>EXERCISE>Q 10
Distinguish between Down syndrome and Turner syndrome.
HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 5 - Heredity and Variation>EXERCISE>Q 1
Mention the laws of Mendel and explain with modern scientific method.
HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 5 - Heredity and Variation>EXERCISE>Q 2
Explain the incomplete dominance with a proper experiment.
HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 5 - Heredity and Variation>EXERCISE>Q 3
Describe the cross involved in the sex-linked character of human. What is criss-cross inheritance?
HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 5 - Heredity and Variation>EXERCISE>Q 4
What is haemophilia? How a haemophilic male is formed? Mention the causes and chances of both types of haemophilia.
HARD
12th West Bengal Board
IMPORTANT
A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 5 - Heredity and Variation>EXERCISE>Q 5
Explain the mechanism of sex determination in grasshopper and in bird.