BIOSC 0160 Exam Review 3

1. Which of these scientists would agree with this statement:

“Evolution occurs as a result of changes in the nonheritable characteristics of animals during their lives via natural selection.”

• Darwin

• Lamarck

• Wallace

• None of the above

The mutated MC1R gene results in ______ which in areas along the equator can cause a deficiency of ______.

• Eumelanin, Folate in offspring

• Pheomelanin, Folate in offspring

• Eumelanin, Calcium in adult

• Pheomelanin, Calcium in adult

A chicken from Central America hops off a ship and somehow ends up in Hawaii. This chicken mates with other chickens native to Hawaii, what phenomenon is this?

• Bottleneck Effect

• Founder's Effect

• Genetic Drift

• Gene Flow

Tropical grasslands are a biome with ______  precipitation and ______  temperatures.

• Low, Low

• Low, High

• High, Low

• High, High

Answer explanation

Which of these represents the common ancestor of the paraphyletic group?

• 1

• 2

• 3

5,000 years in the future, the descendants of birds and cats both have wings. Biologists of the future hypothesize that this development occurred simultaneously in response to a common problem. Given what you’ve learned in this class, what term best describes the hypothesized relationship between these animals?

• Homoplasy

• Convergent Evolution

• Synapomorphy

• None of the above

Sympatric and allopatric speciations are most associated with which of the following?

• Pre-zygotic mechanisms

• Post-zygotic mechanisms

• Geographic Isolation

• Nondisjunction

Which of these is the best definition of the Coriolis effect?

• This is the effect of the earth’s rotation on the movement of air masses.

• As seasons change, the earth’s rotation creates the Coriolis effect.

• This is the deflection of the air masses by the earth’s rotation to the easterlies alone.

• The Coriolis effect is the change in temperature due to the Earth's rotation.

Hardy Weinberg Time! A population of 100 people has 40 people with the recessive allele. How many people in this population are heterozygous dominant?

• 0.36

• 0.6

• 0.48

• 0.16

How prepared do you feel for this exam?

• yolo

• :(

• :/

• :)

• :))