AP Bio Mock Exam Questions

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Questions and Answers

Which type of data would be most useful for the scientists to collect at regular intervals on a designated test plot of rose plants?

Density of rose pollen produced (g/m^2)

What is the best prediction on how the population will be affected by the landslide?

The reduced population will likely have allelic frequencies that are different from the initial population.

Describe the Calvin Cycle.

The reactions of the Calvin cycle add carbon to a simple five-carbon molecule called RuBP, using chemical energy from NADPH and ATP. The final product of the cycle is glucose.

What is apoptosis?

Apoptosis involves the regulated activation of proteins in specific cells that leads to the death of those cells, known as 'programmed cell death.' Signup and view all the answers

What is pre-zygotic isolation?

It is a type of reproductive isolation that occurs before the formation of a zygote, often preventing mating. Signup and view all the answers

What conclusion does the observation of rabbit mRNA being translated in frog tissues support?

Rabbits and frogs share a common genetic code for expressing heritable information. Signup and view all the answers

Which conclusion is most consistent with the results of the experiment?

The subunits of hemoglobin differ in size, shape, or charge. Signup and view all the answers

What does the distribution of traits in the offspring of Drosophila melanogaster indicate?

Genes for the two traits are located close together on the same chromosome, and crossing over occurred between the two gene loci. Signup and view all the answers

Describe the phases of a cell.

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What is the difference between a specific and a nonspecific response?

A nonspecific response is innate; it treats every pathogen the same and has no memory. Signup and view all the answers

If the thyroid gland is removed, why does the level of TSH in the blood increase?

A decrease in thyroxine levels means a loss of inhibition to the hypothalamus and anterior pituitary, leading to increased TSH secretion. Signup and view all the answers

What can be reasonably concluded from the experimental results regarding chloroplast processes?

Light from a lamp can substitute for sunlight in stimulating chloroplast processes. Signup and view all the answers

What best describes the genotypes of individual family members in the pedigree related to sickle-cell disease?

Healthy individuals may possess one mutant allele (HbS) of the hemoglobin beta gene. Signup and view all the answers

What does the restriction endonuclease Mst II recognize and what does it explain about the banding patterns?

The HbA DNA contains a recognition site for the Mst II restriction enzyme. Signup and view all the answers

Based on ecological events after a fire, why are oak trees later replaced by other trees?

Eventually, other trees grow taller than the oak trees and form a dense canopy that shades the understory. Signup and view all the answers

Study Notes

Population Dynamics and Ecological Interactions

Thirds feed on rose pollen, with populations increasing in spring and decreasing in summer.
Hypothesis: Food abundance is a limiting factor; measuring density of rose pollen (g/m²) is crucial.

Marine Ecosystems and Population Genetics

Undersea landslides can bury ocean floor organisms, impacting their populations.
Post-landslide populations typically exhibit altered allelic frequencies compared to pre-landslide conditions.

Photosynthesis Processes

The Calvin Cycle incorporates carbon into RuBP using energy from NADPH and ATP produced during light reactions.
Final product of the Calvin Cycle is glucose.

Cellular Processes

Apoptosis refers to programmed cell death, activated in specific cells during development, such as forelimb formation.

Reproductive Isolation

Pre-zygotic isolation prevents mating or fertilization before zygote formation.

Genetic Similarity Across Species

Rabbit mRNA showed successful translation in frog tissues, indicating shared genetic code for heritable information.

Hemoglobin Genetics

Differences in hemoglobin subunit size, shape, or charge can be inferred from experimental results.

Genetic Linkage in Drosophila

Traits from a Drosophila cross show close genetic linkages on the same chromosome, as evidenced by offspring distribution.

Cell Cycle Phases

Cell phases include interphase (growth and DNA replication) and mitotic phase (cell division).

Immune Response

Nonspecific responses are innate and uniform, lacking memory, treating all pathogens similarly.

Endocrine Regulation

Removal of the thyroid gland results in increased TSH due to reduced thyroxine levels, removing inhibition on hypothalamus and pituitary.

Photosynthesis Experimentation

Experimental results suggest artificial light can replace sunlight for chloroplast activity.

Genetic Information in Pedigrees

Healthy individuals may carry one mutant allele (HbS) for sickle-cell disease, showing inheritance patterns.

Restriction Enzyme Analysis

Mst II exhibits specific banding patterns, indicating the presence of recognition sites in the HbA DNA.

Ecological Succession

Oak trees in an ecosystem can be replaced by taller tree species that create a dense canopy, shading the understory.

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Description

Test your knowledge on population dynamics with this AP Biology quiz. Focus on how environmental factors influence species populations, especially regarding rose pollen as a food resource. Perfect for reviewing key concepts before your exam.