Copy Number Variants

Multiple Choice

Copy number variants

A) are extremely are, occurring in only about a dozen sites in the genome.
B) are found only in even-numbered chromosomes.
C) account for about 25 percent of the genome and number in the hundreds to thousands.
D) account for less than 1 percent of the genome and are five or fewer bases long.
E) are very common in the genomes of fetuses and infants but are lost as we age.