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NEET UG BIOLOGY MCQ: MOLECULAR BASIS OF INHERITANCE
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Select the correct statements about sickle cell
anaemia.
(A) There is a change in gene for beta globin.
(B) In the beta globin, there is valine in the place of
Lysine.
(C) It is an example of point mutation.
(D) In the normal gene U is replaced by A.
Choose the correct answer from the options given
below:
anaemia.
(A) There is a change in gene for beta globin.
(B) In the beta globin, there is valine in the place of
Lysine.
(C) It is an example of point mutation.
(D) In the normal gene U is replaced by A.
Choose the correct answer from the options given
below:
View answer and explanation
Correct option: D
(A) and (C) only
Option D ((A) and (C) only) is correct because sickle cell anemia involves a change in the beta-globin gene and is an example of a point mutation.
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The correct sequence of the first six amino acids in HbA beta globulin peptide is
Assertion: The bacteria and other prokaryotes
show high adaptability to the changing
environment.
Reason: Member of kingdom Monera are
efficient in regulating gene expression. Which of the following is not true for DNA polymerase? Dystrophin gene consists of Read the following four statements (i-iv).
i. In transcription, adenosine pairs with uracil.
ii. Regulation of lac operon by repressor is referred to as positive regulation
iii. The human genome has approximately 30,000 genes
iv. Haemophilia is a sex-linked recessive disease
How many of the above statements are correct? Reactive group of RNA is?
show high adaptability to the changing
environment.
Reason: Member of kingdom Monera are
efficient in regulating gene expression. Which of the following is not true for DNA polymerase? Dystrophin gene consists of Read the following four statements (i-iv).
i. In transcription, adenosine pairs with uracil.
ii. Regulation of lac operon by repressor is referred to as positive regulation
iii. The human genome has approximately 30,000 genes
iv. Haemophilia is a sex-linked recessive disease
How many of the above statements are correct? Reactive group of RNA is?