Exodus of Early Man Quiz

Question 1

the frequency of what types of mutations are used as a molecular clock?

Answer 1

synonymous

Question 2

approximately how long ago did behaviorally modern humans appear?

Answer 2

50,000 - 100,000

Question 3

approximately how many years ago did anatomically modern humans first appear?

Answer 3

• 600,000 - 700,000

Question 4

neanderthals are thought to have had the modern configuration of the larynx and windpipe.

Answer 4

true

Question 5

what are some examples of mutations that suggest that evolution is continuing to change our species?

Answer 5

lactose tolerance and various disease resistance genes

Question 6

what transcription factor has undergone comparatively rapid evolution in the interval between chimps and humans, perhaps contributing to the capacity for complex language?

Answer 6

FOXP2

Question 7

what two actions can all vertebrates with the exception of adult homo sapiens perform simultaneously?

Answer 7

swallow and breathe

Question 8

what is the difference between synonymous and nonsynonymous mutations?

Answer 8

synonymous mutations do not result in a change in the amino acid sequence of the coded protein

Question 9

what is an example that illustrates the concept that an organism is a matter of definition?

Answer 9

a large grove of elm trees in utah

Question 10

what illustrates that the concept of a species is somewhat arbitrary and relative?

Answer 10

a ring species

Question 11

what two forms of the genus homo were already in europe when homo sapiens arrived?

Answer 11

homo erectus and neanderthal

Question 12

which of the following proteins is perhaps the largest in the human genome and mutations of it have been implicated in autism, dyslexia, schizophrenia, intellectual disability, tourette syndrome, and language impairment?

Answer 12

CNTNAP2

Question 13

a genetic bottleneck occurred in the hman genome around 50,000 to 90,000 years ago. this crisis in the population of homo sapiens is thought to have occurred in response to the harsh conditions brought about due to climate change and the expansion of the sahara desert. as few as ____ pairs were thought to survive

Answer 13

10,000

Question 14

which of the following regions of the brain expanded in humans compared to chimps and is strongly associated with language? it is located on the left side of the brain

Answer 14

broca’s area

Question 15

how big was the parent population of modern humans immediatly before the third exodus from africa circa 70,000 - 100,000 years ago?

Answer 15

10,000 mating pairs