The Condition That Some Organisms Contain Much Larger Amounts of DNA

question 13

Multiple Choice

The condition that some organisms contain much larger amounts of DNA than are apparently "needed" and that some relatively closely related organisms may have vastly different amounts of DNA is more typical in _________.

• A)eukaryotes than in prokaryotes
• B)RNA viruses than in DNA viruses
• C)the alphoid rather than the diploid family
• D)prokaryotes than in eukaryotes
• E)viruses than in bacteria

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Definitions:

Chromosome Number

The total number of chromosomes in a cell of an organism, important for genetic characteristics and species differentiation.

Metaphase I

A phase of meiosis where homologous chromosomes align at the equatorial plate before being separated into daughter cells.

Homologous Chromosomes

Pairs of chromosomes in a diploid organism that have the same gene structure and sequence, inherited from each parent, which pair up during meiosis.

Sister Chromatids

Identical copies of a chromosome, joined together by a common centromere, formed during DNA replication in the cell cycle.