Suppose a biology teacher left the window shades down in his classroom over spring break. The room was in almost complete darkness for ten days. How would the plants in the classroom probably look after that time?
A) The plants would be dead and dried up.
B) The plants would show no differences.
C) The plants would be wilted, but still green.
D) The plants would be yellowed.
Ans: D) The plants would be yellowed.
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The Southern blotting technique for transferring DNA from an agarose gel to a piece of nitrocellulose membrane is named for E. M. Southern, the person who developed the procedure.
Answer the following statement true (T) or false (F)
Clostridium tetani in deep puncture wounds can cause the disease ________ in humans.
Fill in the blank(s) with the appropriate word(s).
Which of these is best characterized as interference competition?
A. A barnacle living on the tail of a humpback whale. B. Viruses that infect a rabbit. C. Rabbits and deer grazing on the same grasses. D. Rabbits and insects that use rabbit warrens for shelter. E. A tiger excludes other tigers from its territory.
In order to add a single amino acid to a growing polypeptide chain, a total of ________ molecules or ATP of GTP are utilized.
A. four B. two C. three D. six