Which of the following is not true of a polar chemical bond?
A. It has no net electrical charge.
B. It is ionized.
C. It has opposite electrical charge at each end.
D. It is covalent.
Answer: B
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This figure shows a frontal section of the kidney. Which number(s) indicate a renal papilla?
A. 2, 7 B. 3 C. 6 D. 9 E. 10
Chromatin and chromosomes are both composed of DNA
Indicate whether the statement is true or false
The thoracic duct collects lymph from all of the following except the
A. abdomen. B. left leg. C. right arm. D. left shoulder. E. right foot.
When the ribosome reaches a stop codon, its A site binds a protein called a release factor instead of a tRNA. the release factor causes the finished protein to break away from the ribosome. which step of translation does this describe?
a) elongation b) transcription c) termination d) initiation