George Beadle and Edward Tatum used _____________as a model organisms and created mutants using ______________
A. Drosophila melanogaster : irradiation
B. Escherichia coli : irradiation
C. Neurospora crassa : irradiation
D. Drosophila melanogaster : carcinogenic chemicals
E. Neurospora crassa : carcinogenic chemicals
C
You might also like to view...
The results of an experiment
(a) don’t have to be repeatable. (b) should be repeatable by the investigator. (c) should be repeatable by other investigators. (d) must be both b and c.
About 75%-95% of living cells, both plant and animal, is composed of ________
Fill in the blank(s) with correct word
The three-domain system
A) no longer recognizes eukaryotes as a monophyletic group. B) subdivides the eukaryotes into two different domains. C) subdivides the prokaryotes into two different domains. D) separates plants, animals, and fungi into domains.
The Central Dogma specifies that the information in ________
A) DNA is copied into an RNA molecule during transcription, and the information in that RNA molecule is used to make a protein during translation B) DNA is copied into an RNA molecule during translation, and the information in that RNA molecule is used to make a protein during transcription C) RNA is copied into a DNA molecule during transcription, and the information in that DNA molecule is used to make a protein during translation D) protein is copied into an RNA molecule during translation, and the information in that RNA molecule is used to make DNA during transcription E) DNA is copied directly into a protein