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?
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What is pre-zygotic isolation?
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What conclusion does the observation of rabbit mRNA being translated in frog tissues support?
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Which conclusion is most consistent with the results of the experiment?
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What does the distribution of traits in the offspring of Drosophila melanogaster indicate?
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Describe the phases of a cell.
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What is the difference between a specific and a nonspecific response?
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If the thyroid gland is removed, why does the level of TSH in the blood increase?
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What can be reasonably concluded from the experimental results regarding chloroplast processes?
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What best describes the genotypes of individual family members in the pedigree related to sickle-cell disease?
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What does the restriction endonuclease Mst II recognize and what does it explain about the banding patterns?
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Based on ecological events after a fire, why are oak trees later replaced by other trees?
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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.