Biology 1407 Lab Practical 3 Questions with
Correct Answers
Genus and underlined
When you write organisms name, which is capitalized ______________ and what does it
need ________________________.
stippling
How do you indicate dark vs. light?
straight line touching structure
How do you label specific structures?
total magnification
For microscopy, how do you indicate size?
scale bar
For "naked eye" drawings, how do you indicate size?
fewer
If the selection pressure for dark fur is higher value aka stronger, will it take more or fewer
generations to spread the allele through the mice on dark soil?
more
If the selection pressure for dark fur was a smaller value aka weaker, will it take more or
fewer generations to spread the allele through the mice on dark soil?
175/200 = .875
what is the frequency of the light color phenotype
, 25/200 = .125
What is the frequency of dark color phenotype
.875 = q^2 so q = 0.935 and p = 0.065
what is the frequency of individuals with dd genotype?
2pq 2(0.935)(0.065) = 0.122
What is the frequency of Dd genotype?
p^2 = 0.004
What is the frequency of individuals with DD genotype?
the driving force for evolution or genetic change
Define natural selection
non random
Is natural selection random or non random?
random
mutations r or nr?
both
gene flow r or nr?
random
genetic drift r or nr?
non random
mating / sexual selection r or nr?
Correct Answers
Genus and underlined
When you write organisms name, which is capitalized ______________ and what does it
need ________________________.
stippling
How do you indicate dark vs. light?
straight line touching structure
How do you label specific structures?
total magnification
For microscopy, how do you indicate size?
scale bar
For "naked eye" drawings, how do you indicate size?
fewer
If the selection pressure for dark fur is higher value aka stronger, will it take more or fewer
generations to spread the allele through the mice on dark soil?
more
If the selection pressure for dark fur was a smaller value aka weaker, will it take more or
fewer generations to spread the allele through the mice on dark soil?
175/200 = .875
what is the frequency of the light color phenotype
, 25/200 = .125
What is the frequency of dark color phenotype
.875 = q^2 so q = 0.935 and p = 0.065
what is the frequency of individuals with dd genotype?
2pq 2(0.935)(0.065) = 0.122
What is the frequency of Dd genotype?
p^2 = 0.004
What is the frequency of individuals with DD genotype?
the driving force for evolution or genetic change
Define natural selection
non random
Is natural selection random or non random?
random
mutations r or nr?
both
gene flow r or nr?
random
genetic drift r or nr?
non random
mating / sexual selection r or nr?
