Human white blood cells are often multinucleated (in other words, have more than one nucleus). How many chromosomes would be present in a white blood cell with two nuclei?
A) 46
B) 92
C) 184
D) It varies depending on gender.
B
Biology & Microbiology
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Members of the ____ lineage have a pair of hinged shells thatcan be closed by contraction of one or two adductor
muscles.
a. Cephalopoda b. Polyplacophora c. Platyhelminthes d. Gastropoda e. Scaphopoda
Biology & Microbiology
Mixed acid fermentation
A. occurs in all bacteria. B. is seen in Streptococcus and Lactobacillus. C. produces several different acids plus CO2 and H2 gases. D. produces butyric acid. E. also produces ethanol.
Biology & Microbiology
Replication of DNA begins at a/an ________ rich area.
A. guanine-cytosine B. adenine-thymine C. adenine-cytosine D. guanine-adenine E. uracil-adenine
Biology & Microbiology
Animals of the phylum ____ are likely to have an exoskeleton
a. Mollusca b. Arthropoda c. Nematoda d. Chordata e. Annelida
Biology & Microbiology