What would be a set of anticipated results from a "Lederberg" experiment?

A. Total number of colonies on a plate: 1500 Total number of resistant colonies on replica plate with T1: 150
B. Total number of colonies on a plate: 1500 Total number of resistant colonies on replica plate with T1: 1500
C. Total number of colonies on a plate: 500 Total number of resistant colonies on replica plate with T1: 1500
D. Total number of colonies on a plate: 1500 Total number of resistant colonies on replica plate with T1: 0


A

Biology & Microbiology

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Separate populations are called:

a. schools. b. aggregates. c. stocks. d. clusters. e. races.

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What is the main difference between amphibians and reptiles?

A. Reptiles are tied to water for reproduction, while amphibians have amniotic eggs that can survive on dry land. B. Amphibians are tied to water for reproduction, while reptiles have amniotic eggs that can survive on dry land. C. Neither are tied to water for reproduction. D. There is little difference between amphibians and reptiles.

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The selective agent is the environmental cause of fitness differences among organisms with different phenotypes

Indicate whether the statement is true or false

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What would be strong evidence to suggest a protist is phagotrophic?

A. Silicon dioxide cell walls B. Benthic lifestyle C. An abundance of lysosomes D. Locomotion using polar flagella E. Presence of chloroplasts

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