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Principles Of Inheritance And Variation

Question

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Which of the following statements is not true for cancer cells in relation to mutations?

Mutations destroy telomerase inhibitor

Mutations inactivate the cell control

Mutations inhibit production of telomerase

Mutations in proto-oncogenes accelerate the cell cycle

Solution

C.

Mutations inhibit production of telomerase

Cancerous cells have a high telomerase activity.

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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