BIology 8A Test

A section of DNA that codes for a particular protein is a(n) _______________

• gene

• chromosome

• chromatid

• autosome

In which phase of the cell cycle does a cell spend most of its existence?

• cytokinesis

• mitosis

• interphase

• none of these

Unlike sex chromosomes, autosomes do not

• contain DNA

• code for proteins

• occur in pairs in the nucleus

• determine the sex of an organism

A cell that has only one complete set of chromosomes is described as...

• haploid

• diploid

• triploid

• polyploid

Just prior to cell division, a duplicated chromosome exists as two identical ______________________

• centromeres

• autosomes

• chromatids

• genes

Pairs of chromosomes that carry the same genes are said to be __________________

• analogous

• diploid

• haploid

• homologous

What is the relationship between DNA and chromosomes?

• DNA is made of chromosomes

• Chromosomes are made of DNA

• Chromosomes code for DNA

• DNA codes for chromosomes

The DNA in a cell is replicated during

• Mitosis

• Interphase

• Cytokinesis

• All of these

Meiosis produces

• Diploid sex cells

• Haploid sex cells

• Both A and B

• Neither A or B

Genes consist of chromosomes coiled around histones.

• True

• False