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
CORE SCIENCE BIOLOGY For Class 10>Chapter 4 - Heredity and Evolution>EXERCISE - 4A>Q 1
How will you substantiate the statement that heredity and its concepts were known to the ancient civilizations? How did resistance to drugs evolve in bacteria?
MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 4 - Heredity and Evolution>EXERCISE - 4A>Q 2
Discuss two examples of variations.
MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 4 - Heredity and Evolution>EXERCISE - 4A>Q 3
Write about the relation between heredity and variation in asexual reproduction as well as sexual reproduction.
MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 4 - Heredity and Evolution>EXERCISE - 4B>Q 1
Women have a perfect pair of sex chromosomes but men have a mismatched pair of sex chromosomes because
MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 4 - Heredity and Evolution>EXERCISE - 4B>Q 2
The maleness of a human child is determined by
MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 4 - Heredity and Evolution>EXERCISE - 4B>Q 3
New species may be formed if
(i) DNA undergoes significant changes in germ cells
(ii) chromosome number changes in the gamete
(iii) there is no change in the genetic material
(iv) mating does not take place
MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 4 - Heredity and Evolution>EXERCISE - 4B>Q 4

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

MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 4 - Heredity and Evolution>EXERCISE - 4B>Q 5
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.