MEDIUM
12th Odisha Board
IMPORTANT
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Genes which move together and do not show independent assortment are known as grouped genes or linked genes?

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Important Questions on Heredity and Variation

MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Biology Class 12>Chapter 5 - Heredity and Variation>SAMPLE QUESTIONS>Q 2
A cross between the F1 hybrids with any one of the homozygous parents.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Biology Class 12>Chapter 5 - Heredity and Variation>SAMPLE QUESTIONS>Q 3

Correct the following sentence with changing the underlined word/words:

The process of transmission of characters through generations is known as variation.

MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Biology Class 12>Chapter 5 - Heredity and Variation>SAMPLE QUESTIONS>Q 3
In Mendel's monohybrid cross, the dwarf phenotype is always homozygous.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Biology Class 12>Chapter 5 - Heredity and Variation>SAMPLE QUESTIONS>Q 3

Correct the sentences, if required, by changing the underlined word(s) only:

In Mendel's dihybrid cross in F2 generation nine phenotypes are produced.

MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Biology Class 12>Chapter 5 - Heredity and Variation>SAMPLE QUESTIONS>Q 3
The phenomenon of linkage disproved the principle of independent assortment.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Biology Class 12>Chapter 5 - Heredity and Variation>SAMPLE QUESTIONS>Q 3
In a test cross, always dominant parent is used.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Biology Class 12>Chapter 5 - Heredity and Variation>SAMPLE QUESTIONS>Q 3
The distance between genes in a constructed gene map is expressed as Mendel unit.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Biology Class 12>Chapter 5 - Heredity and Variation>SAMPLE QUESTIONS>Q 4

Correct the sentences, if required, by changing the underlined word(s) only:

Monohybrid cross in F2 generation yields _____ number of phenotypes.