31. Recombinant DNA are currently used to produce _____. (1 point)
clothing dye, cheese, and laundry products
human antibodies and vaccines
crops that test better and stay fresh longer
all of these
32. The Human Genome Project may make use of which of the following to diagnose genetic disorders before birth? (1 point)
cell cultures
gel electrophoresis
PCR
all of the above
33. The historical method used to assign genes to particular human chromosomes was to _____. (1 point)
use linkage maps
study linkage data from human pedigrees
conduct mating experiments
use biotechnology
34. Which of the following lines of evidence for evolution is indirect? (1 point)
pesticide resistance
observed allele frequency changes
fossils
all of these
35. Which of the following is not a factor that causes changes in the allelic frequencies of individuals in a population? (1 point)
stabilizing selection
directional selection
random selection
disruptive selection
36. Which of the following groups are representative of the first primates? (1 point)
lemurs
Old World monkeys
New World monkeys
apes
37. Which is the oldest hominid species to be unearthed? (1 point)
Homo habilis
Homo erectus
Australopithecus afarensis
Australopithecus africanus
38. A group of related classes of plants is a _____. (1 point)
database
kingdom
division
taxon
clothing dye, cheese, and laundry products
human antibodies and vaccines
crops that test better and stay fresh longer
all of these
32. The Human Genome Project may make use of which of the following to diagnose genetic disorders before birth? (1 point)
cell cultures
gel electrophoresis
PCR
all of the above
33. The historical method used to assign genes to particular human chromosomes was to _____. (1 point)
use linkage maps
study linkage data from human pedigrees
conduct mating experiments
use biotechnology
34. Which of the following lines of evidence for evolution is indirect? (1 point)
pesticide resistance
observed allele frequency changes
fossils
all of these
35. Which of the following is not a factor that causes changes in the allelic frequencies of individuals in a population? (1 point)
stabilizing selection
directional selection
random selection
disruptive selection
36. Which of the following groups are representative of the first primates? (1 point)
lemurs
Old World monkeys
New World monkeys
apes
37. Which is the oldest hominid species to be unearthed? (1 point)
Homo habilis
Homo erectus
Australopithecus afarensis
Australopithecus africanus
38. A group of related classes of plants is a _____. (1 point)
database
kingdom
division
taxon