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WorksheetsChanging allele frequencies
Total questions: 10
Worksheet time: 10mins
Fill in the blank:
"_________________ are a measure of how common a particular allele is in the gene pool of a population."
Traits
Allele frequencies
Point mutations
Phenotypes
The variations of a gene are known as...?
Genotypes
Phenotypes
Alleles
Mutations
What best describes a mutation?
An alteration in the nucleotide sequence of DNA.
A change in allele frequencies.
A negative result of changes due to the environment.
The expression of a new phenotype.
What is NOT an example of a point mutation?
Missense mutation
Nonsense mutation
Silent mutation
Block mutation
When a substitution mutation results in the creation of a STOP codon, it is classified as what?
Silent mutation
Missense mutation
Nonsense mutation
Frameshift mutation
Variation between individuals exist within a given population. What are some of the environmental pressures involved in a population?
(select all that apply.)
Extreme temperature changes
Competition of resources
Natural disasters
Predator abundance
When new individuals join the population from a different gene pool or when some individuals leave a population, what is known as?
Gene flow
Genetic drift
Genetic variation
Adaptive value
The change in allele frequencies in a population due to random events is knows as...?
Environmental pressures
Gene flow
Genetic drift
Favourable phenotypes
What event can significantly reduce the size of the population and thus its genetic diversity?
(select all that apply)
Natural disasters
Individuals moving in and out
Land clearing
Inbreeding
If a small group of individuals move to a new location and establish a new population, this is known as...?
Genetic drift
Bottleneck effect
Founder effect
Random chance
