exam1_2008[1] - PRINTABLE VERSION Test 1 You scored 100 out...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
PRINTABLE VERSION Test 1 You scored 100 out of 100 Question 1 Your answer is CORRECT. According to Darwin, which of the following is NOT a requirement for the process of evolution by natural selection? a) Heritable variation b) Nonrandom reproduction c) Differences in survival or reproduction d) Neutral mutations e) Variation among individuals Question 2 Your answer is CORRECT. The two phylogenies of animals below show the most parsimonious mapping of the evolution of bilateral symmetry (on the left) and segmentation (on the right). If the phylogeny is accurate, then: a) Bilateral symmetry evolved in seven different populations and segmentation in three. b) Bilateral symmetry is homoplasious and segmentation is convergent. c) Bilateral symmetry is a synapomorphy and segmentation evolved three times. d) Bilateral symmetry is non-monophyletic and segmentation is homoplasious. e) Bilateral symmetry evolved once and segmentation is a convergent trait. Question 3 Your answer is CORRECT.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Homologous characters can be used: a) As evidence of change over time b) As evidence of common ancestry c) To determine the fitness effects of mutations d) As evidence of population variation e) To determine allele frequencies Question 4 Your answer is CORRECT. The following figure shows a phenotypic space with two traits (X and Y) according to Fisher's geometric model. The optimal phenotype is at the origin (O). Consider the genotype that sits at the closed dot. The arrows represent mutations with different magnitudes and directions. Which of the following statements is a conclusion from this model? a) Most mutations are neutral. b) Mutations of large effect are more likely to be beneficial than mutations of small effect. c) Mutations of small effect are more likely to be beneficial than mutations of large effect. d)
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/27/2011 for the course BIOL 3306 taught by Professor Zufall during the Spring '09 term at University of Houston.

Page1 / 8

exam1_2008[1] - PRINTABLE VERSION Test 1 You scored 100 out...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online