When is cell-to-cell communication particularly important in regulating gene expression?
A. During meiosis
B. During mitosis
C. During replication
D. During embryonic development
Answer: D
Biology & Microbiology
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If a single stranded RNA virus contains genomic RNA that is complementary to the mRNA that it produces, what type of virus is this categorized as?
A. Plus strand B. Minus strand C. Negative strand D. Positive strand E. Minus strand or negative strand is acceptable.
Biology & Microbiology
The phenotype of an organism can best be determined by:
a) true-breeding. b) a reciprocal cross. c) sequencing its genes. d) observing the organism. e) inbreeding.
Biology & Microbiology
______ _______are also called tissue histiocytes.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
A major organism considered to cause food-borne infection is
A. Salmonella. B. Pseudomonas. C. Staphylococcus. D. Bacillus.
Biology & Microbiology