Is most of our DNA made up of genes?

A. No, genes make about 25% of our DNA
B. No, genes make up only 1.5% of our DNA.
C. No, genes make about 50% of our DNA
D. Yes, the vast majority of human DNA consists of genes.


Answer: B

Biology & Microbiology

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Why do lymph nodes swell during an infection?

a. Macrophages accumulate in them. b. Bacteria accumulate in them. c. T cells accumulate in them. d. Production of lymphatic fluid increases. e. Production of mucous increases.

Biology & Microbiology

Based on the fossil record, compared to the number of species alive today, the number that are extinct is ________, but there may be ________ now than at any time before

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

If the heritability of criminality is 0.55 in twin studies, what inference can be made about "nature versus nurture" for determining criminality?

a. Children of criminal have a 55% chance of becoming criminals b. Criminal is mainly due to differences in environmental conditions. c. Equal chances exist for any chiold to become a criminal if raised in that environment d. Fifty-five percent of the variability is due to differences in genotypes.

Biology & Microbiology

The five-year survival rate of ____________________ cancer is only 13%. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology