Both bacteria and archaea are which of the following types of organism?
a. eukaryotic
b. prokaryotic
c. nucleoplasmic
d. multicellular
Ans: b. prokaryotic
You might also like to view...
If a human diploid cell and a human haploid cell somehow managed to fuse together and not lose any of the chromosomes, how many sets of chromosomes would be inside the newly formed cell?
A. 1.5 B. 3 C. 2 D. 2.5
Small RNA molecules that specifically bind complementary mRNA sequences and facilitate the destruction of the message by nucleases are
A) mRNAs. B) siRNAs. C) tRNAs. D) rRNAs. E) miRNAs.
Marc Spehr and his colleagues demonstrated which of the following?
a. Sperm cannot detect and swim toward attractant molecules. b. Sperm attraction can be stimulated by chemicals. c. Eggs release chemicals that attract sperm. d. Sperm can detect and swim toward attractant molecules, and sperm attraction can be inhibited by chemicals. e. Sperm can release chemicals that kill other sperm
Which of the following can be used to carry foreign DNA into host cells? Choose all correct answers
a. RNA b. viruses c. PCR d. plasmids e. lipid clusters f. blasts of pellets g. xenotransplantation h. sequencing