Nucleic Acids Are Long, Chainlike Molecules Composed of Regular Repeating

question 69

Multiple Choice

Nucleic acids are long, chainlike molecules composed of regular repeating _____.

• A) nucleotides
• B) amino acids
• C) monosaccharides
• D) proteins
• E) fatty acids

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Definitions:

Chromosome

Colored body in the nucleus, composed of DNA and proteins and containing the primary genetic information of the cell; 23 pairs in humans.

Aneuploidy

A genetic condition characterized by an abnormal number of chromosomes.

Trisomy 21

A genetic disorder caused by the presence of an all or part of an extra 21st chromosome, known as Down syndrome.

Monosomy

A chromosomal disorder characterized by the absence of one chromosome from the normal diploid number.