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Genetic Drift
Test Description: Evolution and genetics
Instructions: Answer all questions to get your test result.
1) When a type of pigeon is hunted almost to extinction, the resulting survivors form a population. This population is less genetically diverse that the original population. This is an example of
A
bottleneck
B
Founder effect
C
punctuated equalibrium
D
stabilizing selection
2) The Founder’s Effect can be characterized by which of the following?
A
Ellis-van Creveld syndrome in the Amish community
B
when the island population has more genetic diversity than the mainland
3) Mutations are
A
no longer a concern with modern medicine
B
changes in carbohydrates.
C
changes in DNA
4) Genetic drift can be defined as
A
the continental shift of the plates on the Earth's surface
B
changes in the gene pool due to random events.
C
gene flow.
D
the movement of individuals from land to water.
5) Two male seals want to mate with a female seal. The male seals challenge each other to a fight. These fights can be very vicious and males often have scars on their necks form these fights. What type of sexual selection is being displayed?
A
intersexual selection
B
asexual selection
C
intrasexual selection
6) A bowerbird male builds a structure and decorates it with sticks and blue colored objects in an attempt to attract a mate.
A
asexual selection
B
intrasexual selection
C
intersexual selection
7) What mathematical model do scientists use to determine that a population is changing?
A
A +B = C
B
Founder Effect
C
Hardy Weinberg Equilibrium
8) Which of the following statements regarding the founder effect is false?
A
A founder effect example would be dwarfism in the Amish community.
B
The founder effect is a process, like over hunting or natural disasters, that randomly affects allele frequencies.
C
The founder effect tends to lead to lower number of traits.
D
The founder effect tends to reduce genetic variability in the founder population
9) The ______________is the set of all genes, or genetic information, in any population.
A
gene pool
B
bottleneck effect
C
founder effect
10) A type of gene flow when new alleles or genes enter into a population is called:
A
immigration
B
emigration
*select an answer for all questions
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