Pyrimidine Dimers Are a Type of Mutation Most Commonly Caused

question 23

Multiple Choice

Pyrimidine dimers are a type of mutation most commonly caused by:

• A)alkylating agents
• B)deaminating agents
• C)ultraviolet light
• D)acridine

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Definitions:

Dominant Gene

A gene that is expressed in the phenotype over a recessive gene when they are paired together.

Recessive Gene

A gene that produces its characteristic phenotype only when its allele is identical; not dominant.

Down's Syndrome

A chromosomal condition characterized by intellectual disabilities and physical features, resulting from an extra copy of chromosome 21, another way to refer to Down Syndrome.

Sex Chromosomes

Sex Chromosomes are a pair of chromosomes (X and Y) in each cell that determine the genetic sex of an organism, with females typically having two X chromosomes and males having one X and one Y chromosome.