Which stretch of double-stranded DNA is most likely to be recognized as a restriction enzyme cutting site?
A. 5?-GAATCG-3?
3?-CTTAGC-5?.
B. 5?-TCCGGA-3?
3?-AGGCCT-5?.
C. 5?-ACCCCT-3?
3?-TGGGGA-5?.
D. 5?-TTTTTT-3?
3?-AAAAAA-5?.
E. 5?-GTTCAT-3?
3?-CAAGTA-5?.
B. 5?-TCCGGA-3?
3?-AGGCCT-5?.
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When utilizing fats as an energy source, the glycerol portion enters the ________ when it has been converted to ________.
A) TCA cycle; pyruvate B) glycolysis; fructose-6-phosphate C) TCA cycle; acetyl CoA D) electron transport system; CoQ E) glycolysis; dihydroxyacetone phosphate
Amniocentesis is not performed on mothers over the age of thirty-five
a. True b. False Indicate whether the statement is true or false
To reproduce sexually, bryophytes require
A. heterospory. B. free water external to the plant. C. high temperatures. D. solar energy. E. insect pollination.
Which of the following animals is generating (producing) body heat to warm itself?
A) a beetle that absorbs solar radiation B) a moth that shivers its wings before flight C) a lizard that lies on a warm rock D) a turtle that moves to a warm, shallow part of a pond