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According to Watson-Crick model, DNA exists as a …A… . The two strands of polynucleotides are …B… . The backbone is formed by the sugar …C…, …D… chain. The nitrogen bases are more or less …E… to this backbone

Choose the correct options for the blanks A, B, C, D and E

a)

A-chain, B-perpendicular, C-carbonate, D-base, E-parallel

b)

A-helix, B-parallel, C-sugar, D-phosphate, E-perpendicular

c)

A-double helix, B-antiparallel, C-phosphate, D-sugar, E-perpendicular

d)

A-strand, B-parallel, C-sulphate, D-sugar, E-perpendicular


Question ID - 1274 :-

According to Watson-Crick model, DNA exists as a …A… . The two strands of polynucleotides are …B… . The backbone is formed by the sugar …C…, …D… chain. The nitrogen bases are more or less …E… to this backbone

Choose the correct options for the blanks A, B, C, D and E

a)

A-chain, B-perpendicular, C-carbonate, D-base, E-parallel

b)

A-helix, B-parallel, C-sugar, D-phosphate, E-perpendicular

c)

A-double helix, B-antiparallel, C-phosphate, D-sugar, E-perpendicular

d)

A-strand, B-parallel, C-sulphate, D-sugar, E-perpendicular

1 Answer
5876 Votes
3537

Answer Key : (c) -

(c)

A-double helix, B-antiparallel, C-phosphate, D-sugar, E-perpendicular.

Adenine and guanine are substituted purines, while the rest (uracil, cytosine and thymine) are substituted pyrimidines



Next Question :

After grinding a living tissue in trichloroacetic acid and then straining it, you would obtain two fractions : acid soluble pool and acid insoluble fraction. Acid insoluble fraction does not contains

a)

Nucleic acids

b)

Polysaccharides

c)

Lipids

d)

Flavonoids and alkaloids


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