_________ Increases by Only 10 Percent During Middle Childhood and Adolescence

question 36

Multiple Choice

_________ increases by only 10 percent during middle childhood and adolescence.

• A) White matter
• B) The weight of the brain
• C) Gray matter
• D) The number of synapses

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Definitions:

Hemizygous

Possessing only one allele for a particular locus; a human male is hemizygous for all X-linked genes. Compare with homozygous and heterozygous.

Map Units

Units used in genetics to measure genetic linkage and represent the distance between genes on a chromosome, correlating with the frequency of recombination.

Loci

Specific fixed positions on chromosomes where genes or genetic markers are located.

Chromosome

Chromosomes are long, thread-like structures made of DNA and proteins, found in the nucleus of most living cells, carrying genetic information in the form of genes.