A portion of one strand of DNA has the sequence 5? AATGGCTTA 3?
If this strand is used as a template for DNA replication, which of the following correctly depicts the sequence of the newly synthesized strand in the direction in which it will be synthesized? A) 3? TTACCGAAT 5?
B) 5? TAAGCCATT 3?
C) 3? AATGGCTTA 5?
D) 5? AATGGCTTA 3?
B
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All organic molecules contain
A. oxygen and carbon. B. nitrogen and oxygen. C. hydrogen and oxygen. D. carbon and nitrogen. E. hydrogen and carbon.
Small birds must eat more frequently than large birds in order to maintain their body temperature. This is because: rev: 05
A. small birds are cold-blooded. B. small birds have a lower surface area to volume ratio than large birds. C. small birds have a higher surface area to volume ratio than large birds. D. large birds are cold-blooded.
Body weight must be a multifactorial trait because
A) it is obviously inherited. B) it responds to lifestyle changes. C) it is within a certain range. D) it is inherited to an extent, but can be altered by diet and/or exercise.
What kind of bond holds two water molecules to each other?
A) hydrogen bonds B) ionic bonds C) nonpolar covalent bonds D) polar covalent bonds