Which of these molecules would you least expect to easily dissolve in water?
A.) sucrose
B.) acetic acid
C.) potassium chloride
D.) 2-methylpropane
E.) acetone
Ans: D.) 2-methylpropane
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When two true-breeding parental genotypes are crossed, the offspring are referred to as the
A. F1 generation. B. true recessives. C. F2 generation. D. test cross.
What is a challenge that organisms living in an estuary face that other aquatic organism normally do not face?
A. changes in temperature at different depths B. daily changes in salinity C. movement of water D. light penetrating only through the photic zone E. damage from pollution
The chemical bond connecting one nucleotide with the next along one strand of a DNA molecule is called a
A. phosphate bond. B. phosphodiester bond. C. hydrogen bond. D. glycosidic bond. E. peptide bond.
Mutant versions of genes that are normally involved in promoting the development of cancer are known as ________
A) oncogenes B) attenuators C) tumor suppressors D) proto-oncogenes E) malignant genes