MEDIUM
10th CBSE
IMPORTANT
Earn 100

What are homologous structures? Give an example. Is it necessary that homologous structures always have a common ancestor? Justify your answer.

Important Questions on Heredity and Evolution

HARD
10th CBSE
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Heredity and Evolution>CBSE-2020>Q 5
What is the law of dominance of traits? Explain with an example.
EASY
10th CBSE
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Heredity and Evolution>CBSE-2020>Q 6
Why are the traits acquired during the lifetime of an individual not inherited? Explain?
EASY
10th CBSE
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Heredity and Evolution>CBSE-2022 (Delhi Term II - I)>Q 7
Does a male child inherit an X chromosome from his father? Justify. 
EASY
10th CBSE
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Heredity and Evolution>CBSE-2022 (Delhi Term II - III)>Q 11
What are Chromosomes? Explain how the stability of the DNA of the species is ensured in sexually reproducing organisms.
EASY
10th CBSE
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Heredity and Evolution>CBSE-2022 (Outside Delhi Term II - I)>Q 12
Using the height (tallness / dwarfness) of a plant as an example shows that genes control the characteristics or traits in an organism.
EASY
10th CBSE
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Heredity and Evolution>CBSE-2022 (Outside Delhi Term II - I)>Q 13
In a cross between red coloured and white coloured flowers, when plants with red coloured flowers of the F1 generation were self-pollinated, plants of the F2 generation were obtained in which 75% of plants were with red flowers and 25% of plants were with white flowers. Explain the inheritance of traits in the above cross with the help of a flow chart only along with the ratio of plants obtained.
EASY
10th CBSE
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Heredity and Evolution>CBSE-2022 (Outside Delhi Term II - I)>Q 14
Draw a flow chart to show that sex is determined genetically in human beings. 
EASY
10th CBSE
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 9 - Heredity and Evolution>CBSE-2023 (Delhi - I)>Q 16
A cross between pea plant with white flowers (vv) and pea plant with violet flowers (VV) resulted in F2 progeny in which ratio of violet (VV) and white (vv) flowers will be: