Genetic Code

Question 3 • WI-Grade 8 Life Science A

Which best describes the storage of the genetic code?

Answer

A gene is a segment of DNA, a condensed DNA molecule makes up a chromosome, a chromosome is inside a nucleus, and a nucleus is contained within a cell.

A DNA molecule is a segment of a gene, a gene makes up a chromosome, a chromosome is inside a cell, and a cell is contained within a nucleus.

A gene is a segment of a chromosome, a condensed chromosome makes up a DNA molecule, a DNA molecule is inside a nucleus, and a nucleus is contained within a cell.

A DNA molecule is a segment of a chromosome, a chromosome makes up a gene, a gene is inside a cell, and a cell is contained within a nucleus.

Explanation

A gene is a section of DNA, and DNA is packaged into chromosomes. In eukaryotic cells, chromosomes are located in the nucleus, which is inside the cell. So the correct description is “a gene is a segment of DNA” through “a nucleus is contained within a cell.”

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