Subject Experts Solutions for Exercise 1: Multiple Choice Questions [1 mark]

Which of the following statements is correct about the role of regulatory proteins in transcription in prokaryotes?

Which was the last human chromosome to be completely sequenced?

Which of the following are the functions of RNA?

While analysing the DNA of an organism a total number of 5386 nucleotides were found, out of which the proportion of different bases were: Adenine = 29%, Guanine = 17%, Cytosine = 32%, Thymine = 17%.

Considering the Chargaff’s rule it can be concluded that

In some viruses, DNA is synthesised by using RNA as a template. Such a DNA is called

If Meselson and Stahl's experiment is continued for four generations in bacteria, the ratio of N¹⁵/N¹⁵: N¹⁵/N¹⁴: N¹⁴/N¹⁴ containing DNA in the fourth generation would be

If the sequence of nitrogen bases of the coding strand of DNA in a transcription unit is:
5' - A T G A A T G - 3', the sequence of bases in its RNA transcript would be

In E. coli, the lac operon gets switched on when