WorksheetsDarwin and population genetics
Total questions: 26
Worksheet time: 22mins
Darwin's theory of natural selection was made complete once the work ______ was rediscovered
Rosalind Franklin
Gregor Mendel
Thomas Malthus
Wihelm Weinburg
The driving force behind naturaal selectionis genetic_____
Recombination
Stabilizing
Variation
Drift
Natural selection acts upon or favors____
Phenotypes
Genotypes
Recessive alleles
Dominant alleles
Normal distribution can be described as a range of values clustered around a(n) ____ value
Extreme
Average
Distributed
Directional
if a population is in genetic equilibrium, it can be describe as:
Unchanging
Balanced
Evolving
Both (a) and (b)
Possible reasons for genetic changes to a population area:
Natural selection
Mutation
Gene flow
Genetic drift
Nonrandom mating
Match the correct term with the definition below
An evolutionary force in which individuals enter or leave a population
Genetic drift
Gene flow
Natural selection
Nonrandom mating
A type of selection in which one extreme variation is favored
Stabilizing selection
Directional selection
Disruptive selection
A evolutionary force in which certain traits are selected more than other when choosing mates
Gene flow
Genetic drift
Nonrandom mating
Natural selection
a type of selection in which average phenotypes are favored
Stabilizing selection
Directional selection
Disruptive selection
An evolutionary force in which small populations are affected by natural disasters in such a way that alters genetic frequencies
Genetic Drift
Gene flow
Natural selection
Nonrandom mating
An evolutionary force in which the envirormental conditions favors certain phenotypes
Nonrandom mating
Natural selection
Gene flow
Genetic drift
A type of selection in which both extreme variations are favored for
Stabilizing selection
Directional selection
Disruptive selection
GIve an example of aj Hardley weinburg equation
(a)
In the Hardy - Weinberg equation the P stands for the frequency of what allele
(a)
Define evolution in biology
(a)
what ship did Charles darwin travel on
(a)
Define homologous structures
(a)
Limpets are small snails that live near the seashore; their shells can be light, dark limpets are more easily seen by birds , and easily hunted what type of selection best describes this scenario?
(a)
define population bottleneck
(a)
Natural selections acts on a range of
individuals
Phenotypes
Genotypes
Environments
a population of artic hares burrow into the snow for shelter. it is found that the hares on the smaller side are able to burrow between rocks, as well providing extra protection from predators over time, the hare populations becomes smaller in size shifiting the normal distribution curve for hare size
this would be an example of
Stabilizing selection
Disruptive selection
Directional selection
Normal distribution
Limpets are a snail species that can often be found on the sea shore they can come in 3 variations, dark light and intermediate the dark and light colors are easier for the seahorse gulls to spot, and therefore they and more commonly hunted. This would be an example of
Stabilizing selection
Disruptive selection
Directional selection
Normal distribution
stabilizing
Disruptive
Directional
Directional
Stabilizing
Disruptive
Stabilizing
Disruptive
Directional
