1) Which of the following statements is incorrect? (Mark all that apply) a) the

ID: 70764 • Letter: 1

Question

1) Which of the following statements is incorrect? (Mark all that apply)

a) the viral nucleic acid core is always composed of RNA

b) the genome of most prokaryotes consists of a single circular, double stranded DNA molecule

c) Eukaryotic chromsomes are linear molecules composed of double stranded DNA

d) a DNA nucleotide is composed of ribose, phosphate molecule and one nitrogenous base

e) a gene is a segment of DNA that dictates the formation of a protein via an RNA intermediate

2) Which of the following is not true regarding the structure of DNA?

DNA nucleotides consist of deoxyribose, a nitrogenous base and a phosphate molecule.

The two strands of the DNA molecule are antiparallel.

Ionic bonds are the main force holding the two complementary strands together.

The purine adenine base pairs with the pyrimidine thymine.

The paired bases run parallel to one another and perpendicular to the long axis of the helix.

DNA nucleotides consist of deoxyribose, a nitrogenous base and a phosphate molecule.

The two strands of the DNA molecule are antiparallel.

Ionic bonds are the main force holding the two complementary strands together.

The purine adenine base pairs with the pyrimidine thymine.

The paired bases run parallel to one another and perpendicular to the long axis of the helix.

Answer:

Q1). a) the viral nucleic acid core is always composed of RNA

It contains either DNA or RNA

Q2). c). Ionic bonds are the main force holding the two complementary strands together.

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