Fertilization resulting in a chromosome number of 2n + 1 is ____
a. monosomy
b. trisomy
c. haploid
d. diploid
e. triploid
ANSWER: b
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The Black Death was caused by which microbial species?
A. Serratia marcescens B. Escherichia coli C. Saccharomyces cerevisiae D. Yersinia pestis E. Staphylococcus aureus
Recombinant Ti plasmids allow for
A) the transfer of a transgene from the plasmid in Agrobacterium to a plant cell. B) transfer of plant DNA to Agrobacterium. C) the transfer of DNA between two Agrobacterium cells. D) the transfer of the plasmid from Agrobacterium to E. coli.
A thin filament of muscle is composed primarily of the protein
A. hemoglobin. B. myosin. C. myoglobin. D. actin. E. pectin.
Answer the following questions using the five groups listed below:
A. These bacteria can live in water of very high salt concentration. B. The only bacteria that uses the noncyclic photosynthetic pathway. C. These bacteria live in temperatures that are not usually conducive to life. D. These are the most diverse monophyletic group of bacteria. E. These produce CH4.