6.1 Reproduction

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Question 47
Medium
a.

In which organelle of a human cell is the genomic DNA primarily located?

[1]
b.

The diagram below shows a section of a single strand of DNA.

A single strand of DNA containing a chain of nucleotides. The chain has repeating sugar-phosphate backbones running vertically, where a circle represents a phosphate group, a pentagonal shape represents a sugar, and a rectangle represents a nitrogenous base. Label A points directly to one of the pentagonal sugars. A dashed boundary labeled B encloses one complete phosphate-sugar-base group. Label C points directly to one of the rectangular bases marked with a letter.

Identify the components labeled A, B, and C choosing from the following terms:

  • Amino acid
  • Base
  • Fatty acid
  • Nucleotide
  • Sugar
[3]
c.

A complete DNA molecule consists of two complementary strands twisted together. What is the two-word scientific term for this structure?

[1]
d.

If the single strand of DNA shown in an extended version of this diagram has a sequence of exactly 12 bases, what is the maximum number of amino acids that this sequence could code for? Select one option.

  • 4
  • 6
  • 12
  • 36
[1]
e.

Give two different scientific or medical benefits of understanding and mapping the entire human genome.

[2]

6.1 Reproduction Questions

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