Describe the three main differences between bacterial and eukaryotic transcripts
What will be an ideal response?
• Eukaryotic transcripts are more stable than bacterial transcripts.
• Eukaryotes exhibit a separation, in time and in location, between transcription and translation. Bacteria lack a nucleus, which leads to coupling of transcription and translation.
• Eukaryotic genes have introns, which also leads to alternative splicing of transcripts. Bacteria
do not have introns, and thus do not have intron splicing mechanisms.
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A species that is naturally found only in a particular location is called
A. extinct. B. endemic. C. extinct due to the action of humans. D. exotic. E. transitional.
An ecosystem such as a forest in the Pacific
Northwest of the United States is made up of
a. plants, animals and fungi. b. organisms and nonliving things. c. rocks and minerals. d. plants, protozoa, and fungi. e. all of these.
The distribution of hippopotamuses in muddy shallows is generally ____
a. clumped b. random c. uniform d. constant e. homogeneous
Which value of narrow-sense heritability (h2 ) indicates a selection will have a significant impact in altering the initial population?
A) 20 B) 0.20 C) 0.99 D) 99