Two carbon atoms joined to each other by the sharing of two pairs of electrons form a(n)
A. hydrogen bond.
B. ionic bond.
C. double covalent bond.
D. single bond.
Answer: C
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When you encounter a bear while hiking, which part of your nervous system triggers an increase in your heart rate and
breathing to help you run away?
a. the central nervous system b. the sympathetic nervous system c. the parasympathetic nervous system d. somatic nervous system e. cranial nerves
How many identical chromatids occur in each tetrad formed during mitosis?
a. one b. two c. zero d. four
Approximately how many single nucleotide polymorphisms have been identified in humans?
a. 10s b. 100s c. 1000s d. 100,000s e. 1,000,000s
The sequencing and analysis of an organism's genetic information is called
A. protein synthesis. B. gene therapy. C. genomics. D. northern blotting. E. PCR.