A dihybrid individual is an individual that __________
a. Is heterozygous for two traits
b. Is true breeding
c. Is homozygous
d. Has two different alleles for one trait
Ans: a. Is heterozygous for two traits
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The activation of enzymes by the removal of a
portion of polypeptide chain is an example of a. transcriptional control. b. transcript processing control. c. transport control. d. translational control. e. post-translational control.
The movement of organic compounds in phloem is
described as a. sink-to-source. b. pressure flow. c. cohesion-tension. d. active transport. e. transpiration pull.
In one of these years, there was a drought. Which year does it appear to be?
a. 2009 b. 2010 c. 2011 d. 2012
Why does the pyramidal cell, above, illustrate the concept of information integration in the nervous system?
A. It has many dendrites and a single axon. B. It has a cell membrane. C. It is an excitable cell. D. It has a nucleus, in which transcription and translation occur. E. It has many dendrites and a single axon; it has a cell membrane; it is an excitable cell; and it has a nucleus, in which transcription and translation occur. F. All of these are parameters of the pyramidal cell that illustrate the concept of information integration.