AP Biology Unit 7 MCQ

Which of the following is closest to the frequency of the MC1RD allele in the Tule Mountain population?

0.03

Assuming that the population is in Hardy‑Weinberg equilibrium, which of the following is the expected frequency of individuals with the genotype MN?

0.295

Which of the following best explains the trend shown in Figure 1? (Kentucky Derby)

BY 1940

Which of the following principles best justifies a claim that cheetahs, compared to other large cats, have a relatively low resilience to environmental perturbations?

LITTLE genetic diversity

Scientists claim that some of the populations in Marion County are at an increased risk of decline or extinction. Based on the data in table 1, which of the following best provides evidence to support this claim?

M4 and M5

Which of the following best illustrates the change in the frequencies of the A and a alleles from generation 1 to generation 2 and to future generations, assuming Hardy-Weinberg equilibrium is present after generation 1 ?

aa could be produced

Which of the following is the most reasonable prediction about the results of the experiment?

adapted to new food

Which of the following would most likely represent the types of individuals found in one of the species resulting from shape becoming a prezygotic isolating mechanism in the initial population represented in Figure 1 ?

all circles

Which of the following student claims is best supported by the data provided?

cattle and sheep

Which of the following best predicts why humans and mice have identical telomeric repeat sequences?

common ancestor, telomeres

Of the following, which is the best next step for the researchers to best determine the long-term effectiveness of these insecticides with regards to the development of resistance?

continues treating the three

Based on the phylogenetic relationships shown in Figure 1, which of the following best explains the similarities exhibited by whales, bony fishes, and cartilaginous fishes?

convergent evolution, don't share a common ancestor

Which of the following represents an alternate hypothesis tested by this experiment with regard to the population sizes of Henslow's sparrows?

countries 4 and 5

Which of the following best explains the relationship between coat color and predation rate in the rock pocket mouse population on the lava flow rocks with respect to the different coat color phenotypes?

dark color camouflage

Which of the following best describes the processes occurring between the mouse populations and their environments?

dark color; west, mid, east

Which of the following statements best predicts the result of a comparison between the fossils found before and after the period of rapid change?

first static species will be absent in second static period

Which of the following best explains the impact of these new selective pressures on the organisms involved?

flower earlier

Which of the following predicts the expected outcome of the experiment?

founder effect

If a fire caused the surface of the ground in the habitat of the species to become darker in color, which of the following claims about the impact on the allele frequencies in this population is most reasonable?

frequency of B

Which of the following statements includes a reasonable refinement that researchers could use in repeating the experiment?

genetically identical bacterial cells

If geologic events lead to a series of new mountain ranges that divide the plateau into several discrete valleys, which of the following best describes how the L. clathratus population would be affected?

geographic isolation will create gene pools

Based on the data in Figure 1, which of the following would most affect the allelic frequencies of the populations on Isabela and Butuan?

immigration of individuals

Which of the following best explains the phenotypic pattern in the moths over time?

increased air pollution

Of the following, which is the best next step the researchers might take to increase the reliability of their evidence?

increasing number of trials

Which of the following best predicts why the recombinant bacteria will fail to produce the eukaryotic protein?

introns

Which of the following conditions of Hardy-Weinberg equilibrium was most likely not met in the northern elephant seal population following overhunting?

large population size

Which of the following best explains why the population is not in Hardy-Weinberg equilibrium?

light granite rocks

Which of the following best predicts the impact on the lizard species if there is a gradual increase in the average temperatures found in both the lowlands and mountains in this region?

lizards migrate

Based on the information provided in the figure, which of the following best describes how membrane-bound organelles provided unique evolutionary advantages to the last eukaryotic common ancestor?

mitochondria

A scientist wishes to provide experimental evidence to support the model shown in Figure 1 by demonstrating the ability to synthesize an RNA molecule. Which of the following is an alternative hypothesis that can be tested to support the RNA World Hypothesis?

mixture of ribonucleotides

Which of the following best describes what occurred during the periods indicated by the arrows?

natural selection on populations A and B

Iridium is an element that is rare on Earth but commonly found in meteorites. A scientist believes that the first organic molecules may have come to Earth on meteorites 3.6 billion years ago. Which of these would be an appropriate null hypothesis to test related to whether meteorites hit the Earth 3.6 billion years ago?

no difference in iridium

Based on the data in Table 1, which of the following best describes the relationship between the MC1R gene and coat color in the Carrizozo, New Mexico, rock pocket mouse population?

not responsible

Some scientists propose that due to human activity and climate change, a sixth mass extinction has already begun. Select the best alternate hypothesis to support this claim.

observed modern extinction

Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains?

organisms in bacteria

Which of the following best explains the mechanism that caused this speciation event in the giant kangaroo rats of population A?

population A were reproductively isolated

Which statement below best states an alternative hypothesis Fox could have used to frame his research?

presence of available energy

Which of the specimens indicated in the table is the oldest?

specimen 4

Which of the following best describes the expected distribution of proboscis size of the moths at the end of the five‑year study?

starts at 5, ends at 9

Which of the following would be an appropriate alternative hypothesis?

tall buildings

Which of the following best predicts the effect of the enclosure on the O'Neill population?

the frequency will decline

Which of the following best explains the divergence in morphology in the birds?

unoccupied ecological niches