BIOL 1202 : Bio Test 2

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azuremammoth471

15 Mar 2019

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Shared ancestral & shared derived characteristics: shared ancestral characteristic: homologous structure that predates the branching of a particular clade from other members of that clade, shared derived characteristic: evolutionary novelty unique to a particular clade. Concept 26. 4: an organism"s evolutionary history is documented in its genome. Gene duplications & gene families: gene duplication: the production of multiple copies of a gene within the genome. Important type of mutation in evolution because it increases the number of genes in the genome. Paralogous genes: the globin gene family has resulted from several gene duplication events. Choose the pair of paralogous genes form the following list: two different rat olfactory receptor genes** One thing that e. coli and other bacteria have in common with eukaryotes is the presence of ribosomes. Concept 27. 1: structural and functional adaptations contribute to prokaryotic success: prokaryotes are unicellular, some colonial forms, range in size from 1-5 micrometers, thiomargarita namibiensis (750 micrometers, no membrane-bound organelles, circular chromosomes.

Related Questions

Random, chance events that change allele frequencies are knownas:

A. Gene flow

B. Genetic drift

C. Natural selection

D. Balancing selection

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Question 21 pts

What type of selection acts to maintain the two extremephenotypic variants in a population?

A. Disruptive selection

B. Directional selection

C. Positive selection

D. Artificial selection

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Question 31 pts

Approximately, how much of our DNA is shared with our closestrelatives, chimpanzees?

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Question 41 pts

The large canines of male baboons are likely the result of________, while the fact that some male baboons are very colorfulis probably the result of _______.

A. Mutation; balancing selection

B. Gene flow; sexual dimorphism

C. Male competition; female choice

D. Mate choice; genetic drift

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Question 51 pts

Negative assortative mating results in an increased frequency ofhomozygous genotypes within a population.

True

False

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Question 61 pts

Genetic evidence suggests that humans and Neandertals neverinterbred.

True

False

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Question 71 pts

The specific variant of the FOXP2 gene associated with languageacquisition in humans is found in both humans and Neandertals.

True

False

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Question 81 pts

Industrial melanism describes the change in moth color from paleto dark after pollution from factories resulted in coating treetrunks with a layer of dark soot. Which statement is trueconcerning industrial melanism?

A. After pollution levels increased, all moths became darkercolored because soot got on their wings

B. The dark moths survived better after pollution levelsincreased because they were not poisoned by the pollutants

C. Individual moths changed their color in response to thepollution

D. Dark moths were present in the population before pollutionlevels increased

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Question 91 pts

Patterns of evolution can be seen above the species level

True

False

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Question 101 pts

Inbreeding is problematic because it increases the probabilitythat offspring inherit two copies of a recessive mutation thatcauses disease.