The sex chromosome composition of a person with
Turner syndrome is
a. XXX.
b. XO.
c. XXY.
d. XYY.
e. none of these.
Answer: b
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The actin-like protein that seems to be involved in determining cell shape is
A. SpnC. B. FtsZ. C. MreB. D. ActA.
C6H12O6 + C6H12O6 ? C12 H22O11 + H2O represents
A. the formation of a peptide bond. B. a decomposition reaction. C. the formation of a polysaccharide. D. a dehydration synthesis. E. a denaturation reaction.
All of the following combinations are possible in the gametes of an organism that is AaBb EXCEPT
A) AB. B) aB. C) ab. D) Ab. E) aa.
Which of the following statements concerning transcription in bacteria is FALSE?
A. It occurs in the nucleoid region. B. Sigma factors are parts of RNA polymerase that recognize promoter regions. C. Different RNA polymerases are required for synthesis of mRNA, rRNA, and tRNA. D. Termination is either self-induced or due to the presence of Rho protein. E. There are a variety of sigma factors that affect transcription.