Which of the following sequence pairs is a palindrome?
A. 5'?-GTTCAT-3?; 3?-CAAGTA-5?
B. 5'?-GAATCG-3?; 3?-CTTAGC-5?
C. 5'?-TCCGGA-3?; 3?-AGGCCT-5?
D. 5'?-TCACGT-3?; 3?-TCACGT-5?
E. None of the paired sequences are a palindrome.
C. 5?-TCCGGA-3?; 3?-AGGCCT-5?
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Recent advances in molecular techniques allowed paleobiologists to sequence DNA that was preserved in a woolly
mammoth that died ____ years ago.
a. 27,000 b. 4,000 c. 2,700 d. 1,000 e. 500
What is a goal of human therapeutic cloning?
a. To transfer cells from an unrelated individual into a patient needing a transplant. b. To create pluripotent cells for medical research only c. To make a new individual, who is genetically identical to a patient needing a transplant. d. To create pluripotent stem cells using a patient’s nucleus e. To extract ES cells from an embryo
External respiration
a. moves carbon dioxide from alveoli into the blood. b. moves oxygen from alveoli into the blood. c. moves oxygen from the blood into alveoli and carbon dioxide in the opposite direction. d. moves oxygen from alveoli into the blood and carbon dioxide in the opposite direction. e. moves both oxygen and carbon dioxide from alveoli into the blood.
Which of the following metabolic pathways is common in aerobic and anaerobic metabolism?
A) the citric acid cycle B) oxidative phosphorylation C) glycolysis D) electron transport chain