WorksheetsAP Biology Unit 7 Practice Quiz
Total questions: 20
Worksheet time: 14mins
Which of the following best explains the process of natural selection?
a. individuals with less favorable phenotypes are more likely to survive and produce less offspring, thus modifying traits for subsequent generations
b. individuals with more favorable phenotypes are more likely to survive and produce less offspring, thus modifying traits for subsequent generations
c. individuals with more favorable phenotypes are more likely to survive and produce more offspring, thus passing traits to subsequent generations
d. individuals with less favorable phenotypes are more likely to survive and produce more offspring, thus passing traits to subsequent generations
Natural Selection Acts on
phenotype
genotype
gene expression
reproduction
Which of the following best explains convergent evolution?
different selective pressures result in similar phenotypic adaptations in different populations or species
similar selective pressures result in similar phenotypic adaptations in different populations or species
similar selective pressures result in different phenotypic adaptations in a population or species
different selective pressures result in similar phenotypic adaptations in a populations or species
Which of the following describes why bottleneck effect is harmful to genetic diversity?
the reduction in population size could lead to fixation of an allele
the reduction in population size could result in a change in allele frequency
the reduction in population size could cause a change in genotype frequency
the reduction in population size could inhibit reproductive events
Which of the following describes why the founder's effect results in an increase of differences between populations of the same species?
presence of genetic drift
absence of gene flow
addition of harmful alleles
removal of reproductive barriers
Which of the following is a condition that must be met for a population to be in Hardy-Weinberg equilibrium?
small population size
nonrandom mating
absences of selection
presence of migration
If the recessive allele frequency is 0.4, what is the genotypic frequency of the heterozygous individual?
0.16
0.24
0.36
0.48
6. Which of the following describes a population most susceptible to random environmental impact?
small populations
large populations
Which of the following is NOT a method to date fossils?
DNA Sequencing
age of rocks where a fossil is found
rate of decay of isotopes including carbon-14
geographical data
Which of the following does provides evidence for evolution and common ancestry
Analogous Structure
homologous Structure
Which of the following does NOT indicate common ancestry of all eukaryotes?
membrane bound organelles
linear chromosomes
genes that contain introns
presence of chloroplasts
Which of the following describes why single HIV drugs are ineffective over time?
Reverse transcriptase binds to HIV drugs inhibiting drug effectiveness
Mutations in the HIV genome leads to reproductive success
HIV engulfs drugs through phagocytosis and digests them in the lysosome
Drugs decompose prior to inhibit HIV genome from replication
Which of the following best represents the outgroup in a cladogram?
least closely related to the remainder of the organisms in the cladogram
most closely related to the remainder of the organisms in the cladogram
organism found on the farthest branch point from the common ancestor
organism found on the closest branch point to the organism of interest
Which type of data provides the most accurate and reliable evidence to construct phylogenetic trees or cladograms?
morphological
molecular
biogeographical
temporal
Which of the following describes a species?
a. group capable of interbreeding and exchanging genetic information to produce feeble, fertile offspring
b. group capable of interbreeding and exchanging genetic information to produce feeble, sterile offspring
c. group capable of interbreeding and exchanging genetic information to produce viable, fertile offspring
d. group capable of interbreeding and exchanging genetic information to produce viable, sterile offspring
Which of the following contrasts punctuated equilibrium and gradualism?
a. punctuated equilibrium occurs slowly over hundreds of thousands of years while gradualism results in rapid evolution after long period of stasis
b. punctuated equilibrium results from allopatric speciation while gradualism results from sympatric speciation
c. punctuated equilibrium results from sympatric speciation while gradualism results from allopatric speciation
d. punctuated equilibrium results in rapid evolution after long period of stasis while gradualism occurs slowly over hundreds of thousands of years
Which of the following types of reproductive barriers involves inhibiting reproduction due to a different mating season?
behaviroral
temporal
gametic
gametic
Which of the following describes ways that the amount of diversity in an ecosystem can be determined?
a. rate of speciation and rate of extinction
b. rate of reproductive and rate of speciation
c. rate of extinction and rate of immigration
d. rate of reproduction and rate of immigration
Which of the following provides a viable option as to the origin of organic molecules?
biotic synthesis
transported to Earth by meteorite
hydrolysis of inorganic molecules
Earth colliding with other planets
Which of the following was the earliest genetic material?
DNA
RNA
Proteins
Carbohyrdates
