Answer: Bacteria lack a mechanism for splicing out introns
Explanation:
Factor VII gene is 186k nucleotides long while the protein is 2332 amino acids long. <u>This lenght discrepancy is due to introns interrupting gene</u>, because the cell first transcribes the entire gene and then cuts introns out of the transcript. At the end, it splices the remaining pieces. Prokaryotes don't perform splicing so it can not edit out introns from the primary mRNA transcript. To produce an eukaryote gene in prokaryotes it is necessary to use a reverse transcriptase to get a cDNA sequence without the introns, and then insert that into a bacterial genome.
Answer:
A. Uniformitarianism
Explanation:
The principle of Uniformitarianism was proposed by a Scottish Geologist, James Hutton.
The principle is simply stated as "the present is the key to the past".
The processes that have occurred in geologic past is still in play today. By looking at rock sequences in our present day, we can actually have a firm grasp of the processes they have undergone in the past.
Answer: When she finished adding in everyone's ideas, Sofia stepped back and realized that she would need to make a new banner.
Explanation:
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Answer:
You drove through Iowa in the spring and noticed that along a stretch of several kilometers, every third fence post had a male red-winged blackbird perched on it defending its nesting territory. This is an example of <u>uniform dispersion.</u>
Explanation:
There are usually three dispersion patterns :
- Clumping
- Uniform dispersion
- Random dispersion
Clumping is the most common.
Uniform dispersion occurs when
- resources are scarce
- Individuals are evenly spaced in a habitat
- Due to competition or territorial behavior
While Random dispersion occurs when resources are plentiful.
Hence ,This is an example of <u>uniform dispersion.</u>