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WorksheetsBiology Semester 2 Final Exam
Total questions: 23
Worksheet time: 18mins
Different forms of a gene are called?
Hybrids
Dominant factors
Alleles
Recessive Factors
Choose the ratio Mendel found in his F2 generation?
3:1
1:3:1
1:2
3:4
Organisms that have two identical alleles for a particular trait are said to be?
Hybrid
Heterozygous
Homozygous
Dominant
A Punnett square is used to determine the?
Probable outcome of a cross
Actual outcome of a cross
Result of incomplete dominance
Result of meiosis
The physical characteristics of an organism are called it's?
Genetics
Heredity
Phenotype
Genotype
What happens to the chromosome number during meiosis?
It doubles
It stays the same
It halves
It becomes a diploid
During replication, which sequence of nucleotides would bond with the DNA sequence TATGA?
TATGA
ATACT
CACTA
AGTAT
The scientist(s) responsible for the discovery of the bacterial transformation is (are)?
Watson and Crick
Avery
Griffith
Franklin
How would you interpret this statement; when prokaryotic cells copy their DNA, replication begins at?
One point on the DNA molecule
Two points on the opposite ends of the DNA molecule
Dozens to hundreds of points along the molecule
Opposite ends of the molecule
Compared to eukaryotic cells, prokaryotic cells contain?
Much more DNA
Much less DNA
Twice as much as DNA
The same amount of DNA
Which scientist formulated the theory of evolution through natural selection?
Charles Darwin
Thomas Malthus
James Hutton
Jean-Baptiste Lamarck
Lamarck's ideas about evolution were wrong because he proposed that?
Species change over time
Species descended from other species
Species descended from other species
Species are adapted to their environments
A farmer's use of the best livestock for breeding is an example of?
Natural selection
Artificial selection
Extinction
Adaptation
Which is the best answer for the statement; The ability of an individual organism to survive and reproduce in its natural environment?
Natural selection
Evolution
Descent with modification
Fitness
Body parts of unrelated organisms that serve the same function are examples of?
Homologous structures
Vestigial structures
Analogous structures
Fossil structures
Which of the following is an important concept in Darwin's theory of evolution by natural selection?
Descent with modification
Homologous molecules
Processes that change the surface of the earth
The tendency toward perfection
Mutations and the genetic recombination that occurs during sexual reproductions are both sources of?
Genetic Variation
Stabilizing selection
Genetic Equilibrium
Genetic drift
How would you explain, populations of antibiotic-resistant bacteria are the result of the process of?
Natural selection
Temporal isolation
Genetic drift
Artificial selection
What conclusion can you draw from this question, If species A and B have very similar genes and proteins , what is probably true?
Species A and B share a relatively recent common ancestor
Species A evolved independently of species B for a long period
Species A is younger than species B
Species A is older than species B
When two species reproduce at different times, the situation is called?
Genetic drift
Temporal selection
Temporal isolation
Lateral gene transfer
In the six-kingdom system of classification, which kingdoms contain unicellular organisms?
Eubacteria only
Eubacteria and Protista only
Archaebacteria only
Eubacteria, Archaebacteria, Plantae, Protista
Which of the following groups, by themselves do NOT form a clad?
Cone-bearing plants and flowering plants
Ferns, cones-bearing plants, and flowering plants
Moses and ferns
Moseses, ferns, cone-bearing plants and flowering plants
Which of the following groups share the most recent common ancestor?
Cone-bearing plants and flowering plants
Mosses and ferns
Mosses and cone-bearing plants
Ferns and flowering plants
