Lectures 19-23 Practice Test Flashcards


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1

Mutations are caused by what?

Insertion, deletion, substitution, and major alteration.

2

Somatic Mutations are..

occur in any cell except germ cells
and are not heritable

3

Sickle Cell Anemia is an Autosomal Recessive Genetic Disorder Because?

Both copies of the gene must be mutated for a person to be affected.

4

Mutations that occur randomly are considered.

Naturally spontaneous and are linked to normal chemical or biological processes.

5

What are the two working theories of how mutations arise?

Resistance is a physiological response to a
bactericide(a substance that kills bacteria) or Resistance arises from random mutation.

6

Luria-Delbrück fluctuation test demonstrated...

Mutations are not adaptive but occur spontaneously and
randomly. Genetic mutations arise in
the absence of selection, rather than being a
response to selection.

7

Nonsense Mutations are..

A genetic alteration that causes the premature termination of a protein.

8

What are mutations?

These are inherited changes in the genetic material. They provide new genetic variation that allows organisms to evolve.

9

CRISPR stands for...

Clusters of Regularly Interspaced Short Palindromic Repeats.