A gene locus is
a. a recessive gene.
b. an unmatched allele.
c. a sex chromosome.
d. the location of a gene on a chromosome.
e. a dominant gene.
ANSWER: d
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Major histocompatibility antigens are
A) antigens that provoke allergic reactions. B) antigens that must be processed to be recognized by the immune system. C) antigens attached to foreign invaders. D) autoantigens involved in epitope recognition. E) not really antigens, but rather antibodies produced to mask foreign antigens.
The mechanism of DNA replication is
A. semiconservative. B. complementary. C. intermediate. D. dispersive. E. conservative.
Fungal spores produced asexually within a sac-like chamber at the tip of a hypha are called
A) ascospores. B) basidiospores. C) sporangiospores. D) conidia. E) zygospores.
The greatest proportion of these two biomes has been converted to agriculture:a
taiga and tropical rain forest. b. tropical rain forest and temperate rain forest. c. temperate deciduous forest and temperate grassland. d. chaparral and tropical rain forest. e. temperate grassland and savanna.