21st Nov Molecular Basis of Inheritance Quiz 2 – Punjab Meritorious School Preparation Portal

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If the distance between two consecutive base pairs is 0.34 nm then the length of DNA for a human diploid cell is

The diameter of a solenoid of chromatin is

2 nm

30 nm

700 nm

1400 nm

The number of base pairs in E. coli is

Select incorrect statement w.r.t characteristic of genetic material.

It should chemically and structurally be stable

It should be able to generate its replica

It should provide the scope of rapid mutation for evolution

It should be able to express itself

Who identified the biochemical nature of transforming substance?

Oswald Avery and Colin Macleod

Maclyn McCarty

F. Griffith

Both (1) & (2)

DNA was extracted from E. coli. The proportion of cytosine was found to be 30%, then what will be the amount of adenine?

60%

70%

20%

40%

Nu-body has two copies of each

About __________ bp of DNA is wrapped over nu-body to complete about ________ turns.

Purine nucleosides have

5'-3' phosphodiester bond

1'-9 glycosidic linkage

1'-1' glycosidic linkage

H-bonds

In prokaryotes, DNA is found in cytoplasm in which is maintained by

Scattered, Acidic protein

Super coiled stage, Polyamines

Non-scattered stage, Histone

Coiled stage, Acidic protein

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