1. How did Steve Franks and colleagues show that flowering time change in wild canola
(Brassica rapa) meet all the requirements for evolution by natural selection?
For natural selection to produce a change in the composition of a population there must be
Diaphoresis is a whitening of the skin.
Diaphoresis is profuse sweating. Vitiligo is a whitening of the skin.
The correct answer is 'False'.
Mark 1.00 out of 1.00
Write the word o
Biology 370 Study Questions 4-1
1. Does variation arise in response to need or is it just produced randomly? Describe Luria and
Delbruck's experimental evidence?
No variation does not arise in response to need. It is present in a population before
Biology 370 Study Questions 3-1
1. Why are stromatolites cited as evidence for an early origin of life?
The first definite microfossils date from 3.5 to 3.6 billion years resemble modern
stromatolites - mats of blue-green algae. It is clear that life got
Biology 370 - Study Questions 4-3
1. Either natural selection or genetic drift can result in a change in allele frequency in a
population. How do the two differ in their outcomes?
Genetic drift results in a random decrease in heterozygosity and the fixat
Biology 370 - Study Questions 4-2
1. Why does a population have to be very large to be in Hardy-Weinberg Equilibrium?
The larger the population, the less chance that factors such as genetic drift can change the
frequencies of alleles in the gene pool. A
The Mc1R receptor and the Agouti were responsible for pigment color. The Mc1R gives a
brown/black pigment, and the Agouti changes the pattern to a light yellow-red pigment. They
intercrossed species of two different populations to see what would happen. A
1. Some would argue that the Ladder of Life or Great Chain of Being proposed by Aristotle and other
early natural philosophers is teleological. What does this mean?
Teleological is the exhibiting or relating to design or purpose especially in nature. This
1. A change in the frequencies of genotypes in a population. Can be caused by mutation,
genetic drift, or natural selection.
2. Evolution/change (whether large or small) within a genetic lineage through time.
3. The origin of a new lineage (species). Alth
Study Questions 1-1
1. Many modern cetaceans (marine mammals) share a common morphological similarity,
the blowhole for example. While P. macrocephalus (the sperm whale) and T. truncates
(the bottlenose dolphin) are in different families, they both have b
Biology 370 Study Questions 2-2
1. Why is igneous rock, which does not bear fossils, required to determine the age of most
2. How does continental drift occur? How does continental drift produce mountain ranges on
3. If a sample of ig