An organism that is heterozygous for two traits can produce a maximum of ________ different gametes for these traits.
A. four
B. four; only if they are on different chromosomes
C. eight
D. two
E. two; if they are on the same chromosome
Answer: A
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The example of agarose displayed is composed of two chains coiled around each other in a helical (spiral) fashion. Agarose molecules are generally composed of hundreds of sugar residues. Approximately how many residues are in each of the chains?
a. 2 b. 4 c. 6 d. 8
Algae and cyanobacteria are examples of primary producers
____________________ Indicate whether the statement is true or false.
Tertiary structure of a protein is stabilized by:
A) peptide bonds between amino and carboxyl groups on adjacent amino acids B) hydrogen bonds between amino acids C) addition of methyl groups D) an aqueous environment E) bonds between side chains of amino acids
Paneth cells, which are capable of phagocytizing bacteria, are found in the
a) small intestine. b) large intestine. c) stomach. d) pancreas.