MEDIUM
10th CBSE
IMPORTANT
Earn 100

What do you mean by reciprocal cross? How does it differ from test cross?

Important Questions on Heredity and Evolution

MEDIUM
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 4 - Heredity and Evolution>EXERCISE>Q 5

Justify the statement:

Wings of an insect and wings of a bird are called analogous organs.

MEDIUM
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 4 - Heredity and Evolution>EXERCISE>Q 5
Justify the statement:
Thorns of Bougainvillea plant and tendrils of the Passiflora plant are considered homologous organs.
MEDIUM
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 4 - Heredity and Evolution>EXERCISE>Q 6
How do fossils form layer by layer?
MEDIUM
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 4 - Heredity and Evolution>EXERCISE>Q 7
Why should evolution not to be equated with progress?
MEDIUM
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 4 - Heredity and Evolution>EXERCISE>Q 8
Find out number of plants in F2 generation having genotype RrYy (Round and yellow) seed in a dihybrid cross out of 550 population.
MEDIUM
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 4 - Heredity and Evolution>EXERCISE>Q 9
Who proposed double helical model for the structure of DNA? Draw a double helix structure of DNA.
MEDIUM
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 4 - Heredity and Evolution>EXERCISE>Q 10
What is Chargaff’s rule of pairing? When can a DNA molecule be more stable?
MEDIUM
10th CBSE
IMPORTANT
Science Part-III NEW ERA BIOLOGY Textbook for Class X>Chapter 4 - Heredity and Evolution>EXERCISE>Q 1

Draw and label the following:

Creation of diversity over succeeding generation.