Which of the following is an alien species that has invaded the United States?
A. bass
B. wolves
C. kudzu
D. buffalo
E. oak trees
Answer: C
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One hypothesis on the origin of DNA points to RNA viruses evolving a modified nucleotide that is insensitive to ribonucleases
Indicate whether the statement is true or false.
On which portion of the hemoglobin molecule does oxygen bind?
a. protein chain b. cholesterol side chains c. iron in the cytoplasm d. heme group e. nuclear side chains
You wish to confirm that gene X is associated with the F plasmid of your bacterial strain. To accomplish this using bacterial conjugation, you should conjugate your strain with a compatible bacterial strain that is
A) an Hfr strain. B) another F+ strain. C) an F' strain. D) an F? strain. E) the same F+ strain.
Which type of RNA is found in eukaryotes and has an instrumental role in RNA processing?
A) rRNA B) tRNA C) snRNA D) mRNA E) All of these