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WorksheetsGenetic Evolution
Total questions: 20
Worksheet time: 12mins
Use the diagram and description below to predict the type of selection that is occurring for tail length. (a)
A heterozygous organism has (a) .
An organism’s physical appearance is its _____.
chromosome
allele
genotype
phenotype
A disadvantage of antibiotics is....
speeds up human evolution
kills bad bacteria
they are not preventative
cures of an infection
An organism that has either 2 dominant or 2 recessive alleles is said to be ____ for that trait.
homozygous
heterozygous
genotype
phenotype
What is a different version of a gene called?
Allele
Dominant
Gene
Nucleotide
A sequence of DNA that determines a trait is called?
Allele
Phenotype
Nucleotide
Gene
What type of cell accurately describes a bacteria cell?
Plant
Animal
Eukaryote
Prokaryote
Humans have __________________ the evolution of bacteria.
sped up
slowed down
not had an impact on
Use the diagram and description below to predict the type of selection that is occurring for tail length.
Disruptive
Directional
Stabilizing
Artificial
If an individual has a genotype that is RR, then this organism's trait would be considered....
Homozygous Recessive
Heterozygous Dominant
Heterozygous Recessive
Homozygous Dominant
What term accurately defines the definition below?
All the alleles (for a specific gene) within a population.
Speciation
Evolution
Gene Pool
Allele Frequency
Use the diagram and description below to predict the type of selection that is occurring for tail length.
Disruptive
Directional
Stabilizing
Artificial
Which organelle helps bacteria move around?
Ribosomes
Cytoplasm
Flagella
Cell Membrane
What is one reason why bacteria have evolved so quickly?
They reproduce quickly
There is not selection pressure
They can reproduce sexually
Their DNA does not mature
What type of selection can result in the formation of new species?
Disruptive
Directional
Stabilizing
Artificial
What are antibiotics used for?
curing bacterial infections
agriculture
fighting cancer
Punnett Squares determine...
results of meiosis
probably outcome of a cross
actual outcome of a cross
actual genetics of offspring
True or False: Dependent variables are what you change in an experiment.
True
False
Bacteria reproduce....
asexually
sexually
