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WorksheetsEvolution quiz #1: gene pool & variation: bio 1 2019
Total questions: 10
Worksheet time: 7mins
All the possible alleles of genes within a particular population is called ____.
relative frequency
genotypes
phenotypes
gene pool
The number of different phenotypes (genetic variation) for a single gene depends upon ____.
the number of phenotypes that result in that gene
the number of genes that control that trait
the number of alleles for that gene
the number of times an organism reproduces
Which of the following statements about gene pools is typically true?
the relative frequencies of alleles never change
they belong to two or more different species
they contain two or more alleles for each inheritable traits
they contain only dominant alleles
___ is how often an allele occurs in a gene pool with regard to other alleles for the same gene.
frequency (relative frequency = RF)
species
mutation
gene pool
Variation in the gene pool comes from ______.
genotypes & phenotypes
gene shuffling & mutations
mutations only
phenotypes only
A group of individuals who are all of the same species that breed to produce fertile (viable) are a ______.
community
family
species
population
Gene shuffling can change the relative frequency of alleles in a population.
true (yes, it can change the RF)
false (no, it cannot change the RF)
In the gene pool for hamsters, there are 4 alleles that determine fur coat color. If B = 40% ; W = 10% ; G = 20%, what is the frequency of allele "T"?
T = 5%
T = 10%
T = 20%
T = 30%
A gene pool has 100 alleles. If there are 60 of allele A, 10 of allele B, and 30 of allele C, what is the frequency of allele B?
B = 60%
B = 10%
B = 30%
B = 100%
For a certain population, there are the following genotypes:
BB = 30 individuals
Bb = 10 individuals
bb = 60 individuals
total B alleles = 60 ;
total b alleles = 120
total B alleles = 70 ;
total b alleles = 130
total B alleles = 40 ;
total b alleles = 70
