Water molecules have the ability to dissolve many solutes associated with cells. Which attribute of water molecules causes this ability?

A) polarity
B) nonpolarity
C) hydrophobic
D) the shape of the molecule


Ans: A) polarity

Biology & Microbiology

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When comparing genes from Archaea, Bacteria, and Eukarya, which statement is TRUE?

A) Almost all archaeal genes are more similar to eukaryotic genes than to bacterial genes. B) Almost all archaeal genes are more similar to bacterial genes than to eukaryotic genes. C) Genes in Archaea involved in DNA replication, transcription, and translation are more similar to those of Eukarya, while those encoding metabolic functions other than information processing are more similar to those of Bacteria. D) Archaeal genes are almost universally unique; very few are similar to either eukaryotic or bacterial genes.

Biology & Microbiology

Depending on the type of receptor to which it binds, the same neurotransmitter may repolarize or

hyperpolarize potentials in the postsynaptic cell.

Indicate whether the statement is true or false.

Biology & Microbiology

RNA proofreading is ________ stringent than DNA proofreading

Fill in the blank with correct word.

Biology & Microbiology

Current classification of prokaryotes is based on

A. sequencing of proteins, DNA, and RNA. B. type of colony formation. C. morphology of flagella. D. occurrence of transverse binary fission. E. ability to stain the cell wall with Gram stain.

Biology & Microbiology