91
Question
Read the following four statements (A-D)
(A) In transcription, adenine pairs with uracil.
(B) Regulation of lac operon by repressor is referred to as positive regulation.
(C) The human genome has approximately 50,000 protein coding genes.
(D) Haemophilia is a sex-linked recessive disease.
How many of the above statements are right?
Read the following four statements (A-D)
(A) In transcription, adenine pairs with uracil.
(B) Regulation of lac operon by repressor is referred to as positive regulation.
(C) The human genome has approximately 50,000 protein coding genes.
(D) Haemophilia is a sex-linked recessive disease.
How many of the above statements are right?
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Solution
The correct option is D Two
According to complementary base pair rule adenine pairs with thymine in DNA but in RNA it pairs with uracil because uracil is energetically less expensive to produce. Haemophilia is a sex-linked recessive disease. It is called so because the defective genes as well as the healthy ones corresponding those diseases are carried on heterosomes. Thus, the correct answer is option D.
According to complementary base pair rule adenine pairs with thymine in DNA but in RNA it pairs with uracil because uracil is energetically less expensive to produce. Haemophilia is a sex-linked recessive disease. It is called so because the defective genes as well as the healthy ones corresponding those diseases are carried on heterosomes. Thus, the correct answer is option D.
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