Biology 1407 Lab exam 1 Review Questions and Answers

Biology 1407 Lab exam 1 Review Questions and Answers

Question 1.
within phanerozoic, list eras..
Correct Answer: old: paleozoic, mesozoic, new: cenozoic


Question 2.
What colony does the anabaena have? ( long rod like strands with balls on each)
Correct Answer: filament


Question 3.
what is the frequency of the light color phenotype
Correct Answer: 175/200 = .875


Question 4.
Given these data for marine mammals using 500 m^2 sampling area. 10 quadrants were
surveyed at 4 m ^2 per quadrant species: tursiops individuals: 36 Pi: Ln (pi): Pi x Lnpi:
Correct Answer: 36/38= 0.947 ln(pi) = 0 0.0544 = -0.0515


Question 5.
Is natural selection random or non random?
Correct Answer: non random


Question 6.
For "naked eye" drawings, how do you indicate size?
Correct Answer: scale bar


Question 7.
environmental conditions selected for trait
Correct Answer: convergent evolution


Question 8.
Counter stain is _________, so G - cells show the counterstain pink
Correct Answer: Safranin


Question 9.
How do you label specific structures?
Correct Answer: straight line touching structure


Question 10.
genetic drift r or nr?
Correct Answer: random


Question 11.
gene flow r or nr?



Page 1

, Correct Answer: both


Question 12.
When you write organisms name, which is capitalized ______________ and what does it need
________________________.
Correct Answer: Genus and underlined


Question 13.
what colony does the gleoocpasa have? (clusters of 4 balls)
Correct Answer: colony


Question 14.
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?
Correct Answer: more


Question 15.
List the three phyla of bacteria
Correct Answer: cyanobacteria, proteobacteria (gram neg), firmicutes (gram
pos)


Question 16.
at low power is
Correct Answer: 10 x 10 = 100 x


Question 17.
image appears flipped upside down and backwards
Correct Answer: inversion


Question 18.
not from common ancestor, batus birdwings
Correct Answer: analogous structure/ homoplasies


Question 19.
What is parsimony in cladogram perspective?
Correct Answer: simplest hypothesis most likely to be correct


Question 20.
List 6 things you can use to differentiate bacterial colonies
Correct Answer: shape, color, size, texture, margin, and elevation


Question 21.
For microscopy, how do you indicate size?
Correct Answer: total magnification


Question 22.


Page 2