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NEET UG BIOLOGY MCQ: MOLECULAR BASIS OF INHERITANCE
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State true (T) or false (F) for the given statements and choose the correct option.
a. The lac operon consists of two regulatory genes and four structural genes.
b. The y gene codes for permease, which increases permeability of the cell to -galactosides.
a. The lac operon consists of two regulatory genes and four structural genes.
b. The y gene codes for permease, which increases permeability of the cell to -galactosides.
View answer and explanation
Correct option: C
a-F, b-T
Option C is correct because statement a is false (lac operon has one regulatory gene and three structural genes), and statement b is true (y gene codes for permease).
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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?