AP Bio Exam Question

Which of the following best explains why GFP might exhibit a right rain florescence in alkaline conditions but not in acidic conditions

Addition of an H+ to GFP at acidic pH changes the shape of the protein preventing fluorescence

121

Amniotic Egg

125

-8.6

123

0.67

122

1/2 or 0.5

The average brood size permeate individual upon the re-introduction of food following 30 days of ARD is closest to which of the following

50

Based on the information above, which of the following mutations is the most likely cause of sickle cell anemia

A single base-pair substitution in the gene encoding the beta subunit

Mitochondria are found in most eukaryotic cells and contain their own DNA and ribosomes that are similar to those typical of many prokaryotic cells. Which of the following statements is justified by these observations

An ancestral cell most likely engulfed an aerobic prokaryote in a relationship that proved beneficial for both cells

The validity of the cladogram is best supported by the molecular evidence for which of the following changes in the amino acid comparison of the beta hemoglobin protein during the exslution of these species

Arginine to eucine at position X on the cladogram

Which of the following is most likely in mechanism by which the S. pyogenes acquire the ability to produce exotoxins

Bacteriphoge DNA became integrated in the bacterial chromosome

If the finch populations are each in Hardy Weinberg equilibrium in isolated from each other then which of the following graphs correctly displays the relative genotype frequencies

Bar graph where two lines in the middle are equal

Which of the following claims it is most consistent with the observed butterfly behavior

Butterflies the expresses two variables of the enzyme are actice over a greater range of temperature

Which of the following describes the most likely mechanism by which CDK five regulates neurotransmitter released

CDK5 alters the activity of other proteins involved in the movement of synaptic vesicles to the plasma

Which of the following representations of the movement of calcium, sodium and potassium ions best shows how an action potential is transmitted to the postsynaptic neuron

Ca and Na go in while K goes out

Which of the following best accounts for a different frequency distribution in the graph

Deccaries eat cacti with a smaller number of spines and wasp larvae eat cacti with greater number of spines

Previous experiments indicated CDK five is active only one attracted to a protein called P 35 which of the following best for dicks help he 35 might play a role in regulating neuro function

Degration of p53 results in the increased synaptic activity

Which of the following best explains how regulated neurotransmitter release might increase the range of responses to a stimulus in the nervous system

Different neurons in the same neural network can release different amounts of neurotransmittes

The results for the treatment groups V and VI could suggest which of the following questions about the design of the experiment

Does the aquarium water contain living microorganisms

Which of the following describes the initial steps of the process whereby epinephrine stimulates glycogen breakdown

Epinephrine binds to a cell surface receptor: the activated receptor stimulates production of the second messenger cAMP

Based on the model which of the following best explains why a bright green fluorescent was observed following stimulation of a presynaptic neuron

GFP contained the synaptic vesicles moved into the synaptic cleft by exocytoxins

Which of the following is the most reliable conclusion that can be drawn from analysis of the data above

Genetic drift occurred in population 1

The hydrolytic enzymes are most likely to accumulate in which of the following cellular structures

Golgi complex

Which of the following statements uses information presented to support the hypothesis that interception of the M function in a single body cell can result in cancer

Growth factor signaling can trigger mitosis in cells that are in direct contact with other cells

Based on the model of speciation presented which of the following describes the most likely consequence to the populations over time

Hybrid individuals are less likely to pass their genetic information on to subsequent generations

To investigate whether an organism in the study is capable of both photosynthesis and respiration a comparison of which treatment groups is most appropriate

I and II

Which of the following questions would be most appropriate to investigate whether the protelytic enzymes are evolutionary conserved among species

If a proteolytic enzyme from one species is incubated with a percursor protein from another species does correct cleavage occur

A man with high cholesterol levels is about to marry a woman who's total cholesterol levels are higher than average a physician has suggested that they get tested for the HC allele which of the following is a valid ethical question concerning the test

If both have the allele for HC, should an insurance company raise their rates because of the results of the test

Which of the following observations best supports the hypothesis that CDK5 negatively regulates neurotransmitter release

Inhibition of CDK5 activity in neurons increases the movement of synaptic vesicles to the plasma in response to a specific stimulus

The experimental results are most consistent with which of the stages that are depicted in the model

Intermediate stage

The Pedegree suggest that the gene is on a nuclear chromosome and not on the mitochondrial DNA because

Maternal mitochondria mutations are inherited by all of a mother's offspring

Which of the following best describes the reproductive ability of C. elegans following the ARD included in the first experiment

Mating with well fed male consistenly

Based on the universal genetic code which of the following represents the correct polypeptide the result from the translation of the mRNA molecule shown beginning with the first available start codon

Met- Val -Thr - Lys- Phe- Gly- Hs

If a damn is built downstream and prevent salmon migration to the test sites, which of the following most accurately predict the impact of nitrogen influx

Nitrogen influx will decrease because there will be less bear- salmon interaction

Which of the following graphs is the most appropriate representation of the experimental results documented in the table

Only bar graph

The P 53 protein regulates a cellular response to DNA change based on the diagram above which of the following best describes the role of P 53 in response to DNA damage

Phosphorylated p53 stimulates transcription of p21, and the protein suppresses cell division until the DNA damage is repaired

Based on the information presented which of the following will also occur response to steroid signaling

Production of a specific mRNA will increase as a result of the binding of the hormone receptor complex to the DNA

Which of the following represents a cross between a white eyed female in a red eyed male

Rr X^t X^t x Rr X^T Y

Which of the following best describes the reason for excluding hybrid males when calculating the allele frequency's of the into reading population at the intermediate stage of speciation

Sterile individuals make no genetic contribution to the next generation

Using the model of speciation in applying it to the different population, which of the following outcomes is the most consistent for a different species in which the males are homogamtic and the females are heterogametic

Sterility would appear in females before appearing in males

Which of the following statements best justifies the claim that the conclusion in at least one of the experiments could generate the molecular building block essential for life

The Nitrogen (N^2) gas and ammonia (NH3) gas in experiment 1 could provide the elemental nitrogen required for the formation of amino acids

Based on the experimental results which of the following is the best evolutionary explanation for the occurrence of ARD in C. elegans

The ability to enter ARD provides a strong selective advantage because reproduction can occur despite periods of food scarity

Which of the following best explains the mechanism of inheritance of the gene

The allele for blue is X linked dominant allele because there are no blue male offspring in cross Z

Which of the following is most appropriate factor to use as the dependent variable in the experimental investigation

The amount of metabolic wastes in the water where the fish are being raised

The student concluded the pea plants grew better in compost then didn't melon plants. Which of the following best addresses the validity of the conclusion made by the students

The conclusion is invalid because other variables in the experiment (both biotic and abiotic) affected the results

Which of the following pieces of additional data would help further investigate The relationship between bears, salmon, and influx of nitrogen into the local environment

The experimenters should remove the remains of salmon carcasses immediately after the salmon are eaten by the bears and determine the nitrogen content of the carcasses

As depicted in the diagram, honey bees communicate the location of flower patches to members of their highs with waggle dances they give information about the direction and distance to the flowers. Which of the following statements about how honey bees communicate the position of flower patches is most consistent with the model

The farther the target flowers from the hive, the longer the waggle phrase is

In the cross diagrammed above the expected in observed results are shown which of the following best explains the observe the results of the cross

The genes for body color and wing shape are located close to each other on the same chromosmome

Which of the following statements is most consistent with the data in the table

The kidneys of reptiles and birds are highly efficient because little water is needed to excrete uric acid

Which of the following observations provides the best evidence that photosynthesis occur in a treatment group 1

The mean pH of the samples increased after one hours

Which of the following conclusions is most consistent with the data shown in figure 2

The number of days an animal spends in ARD does not significantly affect its time of survival after reintroduction of food

Which of the following statements is best supported by the data

The presence of block bears and salmon correlates with a significant increase in nitrogen influx

Which of the following is the best prediction of how disease will affect the two populations

The smaller population will be more affected than will the larger population, because the smaller population has less genetic variation than the larger population

The graph above represents the number of individuals in a population of wolves and in a population of moose observed in the same isolated geographic area over a 40 year period. Which of the following statements about...

The wolves were predators of the moose. Which were otherwise re-productively successful

Which of the following most likely describes how the interaction between bears and salmon influences nitrogen dynamics in the environment

When bears consume salmon, they leave parts of the carcasses on the ground, which decompose, releasing nitrogen into the environment

Which of the following scientific questions is most revenant to the model represented in the figure above

Which molecular substance is actively transported across the plasma membrane

Which of the following is the best prediction of how the introduction of C. taxifolia to the California coast

Without natural herbivores pr competitors C. tatifolia will grow rapidly and crowd out native species of producers

Which of the following modifications to the experimental design will best help reduce the standard errors of the means

increasing the sample size of each treatment group