The Lederbergs Conducted an Experiment That Showed That Mutations Were

question 21

Multiple Choice

The Lederbergs conducted an experiment that showed that mutations were random events.The alternative view,proposed by Lamarck,predicted that organisms changed in response to their environment and would pass on that change to their offspring.If Lamarck's hypothesis was correct,what results would you expect the Lederbergs to have seen?

• A)There would have been no bacterial colonies on the master plate or on the plates with the T1 phage.
• B)There would have been no bacterial colonies on the master plate,but there would have been copious amouts on the plates with the T1 phage.
• C)There would be bacterial colonies on the master plate and there would be a few colonies growing on plates with the T1 phage,but the two plates with T1 phage would have colonies growing in different locations.
• D)There would have been bacterial colonies on the master plate and all of those colonies would be present on the plates with the T1 phage.
• E)You would need to design a completely different experiment to test Lamarck's hypothesis.

---

Definitions:

Experiments

Scientific procedures undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.

Weighting

The process of assigning different levels of importance or coefficients to various elements in a calculation or assessment.

Self-Help Groups

Peer-led organizations where members share their experiences and support each other in solving common problems.

Alcoholics Anonymous

A self-help group aimed at aiding individuals to recover from alcoholism through shared experiences and mutual support.