Mutations vary in how much they affect the phenotype of an organism. Frameshift mutations typically cause more of an impact on phenotype than other mutations. Which describes a situation in which a deletion mutation would NOT result in a frameshift?
A) The deletion occurs at the beginning of a gene.
B) The deleted base is adenine.
C) The deletion consists of three consecutive bases.
D) The deletion is a result of an error in replication.
Ans: C) The deletion consists of three consecutive bases.
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The primary action in hand washing that prevents the distribution or transmission of microor-ganisms is:
a. the amount of soap used. b. the temperature of the water. c. the mechanical action of rubbing. d. the chemical activities in the soap.
Arabinose sugar is used by ara+ bacteria but cannot be used by ara– mutants. When both ara3 and ara5 mutants are introduced into the same recipient via a vector, and the recipients still cannot use arabinose, what can you conclude?
What will be an ideal response?
Which step of the cellular respiration pathway produces 4 CO2, 6 NADH, 6 H+, 2 FADH2, and 2 ATP?
A. Glycolysis B. Fermentation C. Citric Acid Cycle D. Electron Transport Chain
Square planar arrangement of cells that forms when round bacteria remain attached to each other during reproduction are called ________.
A. sarcinae B. staphylococci C. streptococci D. tetrads