MEDIUM
12th Maharashtra Board
IMPORTANT
Earn 100

Observe the given pedigree chart and answer the following questions.
Question Image
Identify whether the trait is sex linked or autosomal.

Important Questions on Inheritance and Variation

MEDIUM
12th Maharashtra Board
IMPORTANT
Biology Standard 12>Chapter 3 - Inheritance and Variation>Exercise>Q 3

Observe the given pedigree chart and answer the following questions.
Question Image
Give an example of a trait in human beings which shows such a pattern of inheritance.

HARD
12th Maharashtra Board
IMPORTANT
Biology Standard 12>Chapter 3 - Inheritance and Variation>Exercise>Q 5
What is dihybrid cross? Explain with suitable example and checker board method. 
HARD
12th Maharashtra Board
IMPORTANT
Biology Standard 12>Chapter 3 - Inheritance and Variation>Exercise>Q 5
Explain with the suitable example an independent assortment.
EASY
12th Maharashtra Board
IMPORTANT
Biology Standard 12>Chapter 3 - Inheritance and Variation>Exercise>Q 5
Define test cross and explain its significance.
MEDIUM
12th Maharashtra Board
IMPORTANT
Biology Standard 12>Chapter 3 - Inheritance and Variation>Exercise>Q 5
What is parthenogenesis? Explain the haplo-diploid method of sex determination in Honey bee.
MEDIUM
12th Maharashtra Board
IMPORTANT
Biology Standard 12>Chapter 3 - Inheritance and Variation>Exercise>Q 5
In the answer for inheritance of X-linked genes, Madhav had shown carrier male. His answer was marked incorrect. Madhav was wondering why his marks were cut. Explain the reason.
MEDIUM
12th Maharashtra Board
IMPORTANT
Biology Standard 12>Chapter 3 - Inheritance and Variation>Exercise>Q 5
With the help of neat labelled diagram, describe the structure of chromosome.
MEDIUM
12th Maharashtra Board
IMPORTANT
Biology Standard 12>Chapter 3 - Inheritance and Variation>Exercise>Q 5
What is cris-cross inheritance? Explain with suitable example.