Biology 1407 Lab Practical 3 Questions with Correct Answers

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?