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A DNA double helix is 340 nm long. The number of nucleotides in this DNA is:

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Important Questions on Molecular Basis of Inheritance

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Biology Crash Course NEET>Chapter 28 - Molecular Basis of Inheritance>Level 2>Q 9
Which of the following is not correct with respect to lac operon?
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Biology Crash Course NEET>Chapter 28 - Molecular Basis of Inheritance>Level 2>Q 10

Splicing is one of the important steps of post–transcriptional modification of __A__, which occurs in __B__.

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Biology Crash Course NEET>Chapter 28 - Molecular Basis of Inheritance>Level 2>Q 11
Which of the following statements related to protein synthesis are true?
(I) Transcribed hn-RNA and m-RNA of gene are similar in size
(II) The 3'CCA end of t-RNA acts as amino acid binding site
(III) f-met-t-RNA binds on to the 'P' site in ribosome
(IV)The protein factor called RF helps in recognising the termination codon
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Biology Crash Course NEET>Chapter 28 - Molecular Basis of Inheritance>Level 2>Q 12
Of the __A__ different possible codons, __B__ specify amino acids and __C__ codons do not specify any amino acids.
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Biology Crash Course NEET>Chapter 28 - Molecular Basis of Inheritance>Level 2>Q 13
In a double helix of DNA molecule of 10 coils, if there are 30 adenine nitrogen bases, what is the number of guanine nitrogen bases :
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Biology Crash Course NEET>Chapter 28 - Molecular Basis of Inheritance>Level 2>Q 14

How many amino acids will be produced by the given mRNA sequence if the 16th base is substituted by uracil?

5' A U G C G C A A A C C C U A G C G A 3'

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Biology Crash Course NEET>Chapter 28 - Molecular Basis of Inheritance>Level 2>Q 15

In eukaryotes, the first level of regulation of gene expressions is

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Biology Crash Course NEET>Chapter 28 - Molecular Basis of Inheritance>Level 2>Q 16
ln a DNA molecule, if the percentage of thymine is 22%, then guanine will be