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Principles Of Inheritance And Variation

Question

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What base is responsible for hot spots for spontaneous pint mutations?

Adenine

Guanine

5-bromouracil

5-methyl cytosine

Solution

C.

5-bromouracil

Hotspots in any region in a gene that mutates at very high frequency than the neighbouring regions of the gene.

Some More Questions From Principles of Inheritance and Variation Chapter

Give one example of genetic trait for each of the following in humans : (i) Lethality (ii) Multiple allelism.

What for symbols AA and Aa stand ?

Mention the phenomenon of pleiotropy by giving an example.

Name the plant that shows incomplete dominance in respect of the colour of its flower.

Write the genotypes of man with blood group A.

What is Mendel’s monohybrid phenotypic ratio ?

Write down Mendel’s dihybrid Phenotypic ratio

Who were the rediscoverers of Mendelism ?

What are the real determinants of what an organism will become ?

What is the unique feature of F1 generation ?

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