MEDIUM
10th CBSE
IMPORTANT
Earn 100

Name the organism Mendel used for his experiments. Explain about F1 and F2 progeny obtained by Mendel when he bred the tall and the short varieties of the organism he experimented with.

Important Questions on Heredity and Evolution

MEDIUM
10th CBSE
IMPORTANT
Write about the relation between heredity and variation in asexual reproduction as well as sexual reproduction.
MEDIUM
10th CBSE
IMPORTANT

The two versions of a trait (character) which are brought in by the male and female gametes are located on:

MEDIUM
10th CBSE
IMPORTANT
Select the statements that describe characteristics of gene
(i) Genes are specific sequence of bases in a DNA molecule.
(ii) A gene does not code for proteins.
(iii) In individuals of a given species, a specific gene is located on a particular chromosome.
(iv) Each chromosome has only one gene.
MEDIUM
10th CBSE
IMPORTANT
What is a sex chromosome?
MEDIUM
10th CBSE
IMPORTANT
What is the basis of sex determination in most plants and animals?
EASY
10th CBSE
IMPORTANT
What are autosomes? How many pairs of autosomes are present in a human?
MEDIUM
10th CBSE
IMPORTANT
What is the reason that a male is called heterogametic?
MEDIUM
10th CBSE
IMPORTANT
How many chromosomes are there in a human being? (a) ovum (b) liver cell