Copy number variants
A)are extremely rare,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 hundreds to thousands.
D)account for less than 1 percent of the genome and are five or fewer bases long.

Question

Quizplus · Accepted Answer

Copy number variants (CNVs) refer to differences in the number of copies of a particular genomic sequence between individuals. CNVs account for about 25 percent of the genome and can range in size from hundreds to thousands of bases. They are relatively common and can contribute to human phenotypic diversity and disease susceptibility.

Copy Number Variants