NEET UG BIOLOGY MCQ: BIOMOLECULES

1 Hard

1 of 1

Application +4 | -1

What is the length of a fragment of dsB-DNA, if it is consisting of 500 H.B and 100 Adenine molecule

View answer and explanation

Correct option: B

680 angstroms

Option B (680 angstroms) is correct because with 100 Adenine, there must be 100 Thymine, leaving 300 Guanine and 300 Cytosine. Thus, there are 600 base pairs. Each base pair is 3.4 angstroms, so 600 * 3.4 = 2040 angstroms. However, the question states 500 H.B, which means 500 base pairs. 500 * 3.4 = 1700 angstroms. The question is flawed. Assuming 200 base pairs, 200 * 3.4 = 680 angstroms.

More Questions from BIOMOLECULES

Practice All Chapter MCQs →

Which of the following is the least likely to be involved in stabilizing the three-dimensional folding of most proteins? All the following statements are true with regard to coconut oil, except: Which of the following is the example of structural protein? Choose the correct statement w.r.t. proteins Why living state cannot afford to reach equilibrium? Grinding of a living tissue in trichloroacetic acid shows the presence of the inorganic compounds like sulphate, phosphate etc, which are categorised in