Chapter 18
Chapter 22 & 26
Chapter 23
Phylogenic Trees
100

What is a proto-oncogene?  

A gene that when it undergoes cellular conversion promotes unregulated cell division. Stimulates the cells cycle and can become an oncogene

100

The idea that a species will disappear from a rock strata due to some disaster is what theory?

Catastrophism
100

Evolutionary change happens at what level?

Population

100

Is a salamander more closely related to a shark or a lizard?

Lizard

200

What protein binds to the enhancer region of a gene and stimulates transcription?

Activator

200

What are the four things to note when writing a binomial?

  • The entire two-part name must be written in italics (or underlined when handwritten).
  • The genus name is always written first.
  • The genus name must be capitalized.
  • The specific epithet is never capitalized.
200

What is the Hardy- Weinberg Principle?

Frequencies of alleles, genotypes remain constant over generations unless acted upon by agents other than Mendelian segregation and recombination allele

200

What are the shared derived characters?

Vertebrae, four limn, amniotic egg

300

Differentiation is controlled at what level?

Transcription

300

What is natural selection?

  • differential success in reproduction by different phenotypes
300

In a population that is in Hardy-Weinberg equilibrium, the frequency of the allele Q is 0.2. There are only two alleles for this gene.  What is the percentage of the population that is heterozygous?

32%

300

Is the frog more closely related to the crocodile or the dimetrodon?

Equally related to both

400

What is the function of DNA methylation?

Attaches a methyl group to DNA bases causing it to condense more tightly. This is often found in inactive DNA

400

Insects mutate genes when sprayed with insecticide so they can survive pesticide usage. These insects survive. Over time, insects develop resistance. This describes what?

Inheritance of acquired characteristics

400

What are the 4 factors that alter allele frequencies?

  • Natural selection
  • Genetic drift
  • Gene glow
  • Mutation
400

Is the frog more closely related to the tuna or crocodile?

Crocodile

500

Is a repressible operon usually on or off? What kind of pathways do you find repressible operons in? And what is an example of one?

Usually on, anabolic pathways, Trp.

500

The Darwinian or evolutionary fitness of an individual is measured by what?

The number of offspring that survive and are able to reproduce

500

What happens when Hardy Weinberg assumptions are not met?

Gene pool changes, some type of selection may be occurring, evolution usually results, population deviates from stability

500

Are amphibians more closely related to the ray-finned fish or primates?

Primates

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