The human brain contains at least ____ neurons

a. 100 billion
b. 100 million
c. 500 million
d. 100 thousand
e. 50 million


A

Biology & Microbiology

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A point mutation that causes no change in the amino acid sequence of a protein is called a _____

A. synonymous (silent) mutation B. nonsynonymous (missense) mutation C. nonsense mutation D. stop mutation E. transition mutation

Biology & Microbiology

Which one of the following controls drives, instincts, and emotion?

A. thalamus B. cerebrum C. limbic system D. cerebellum

Biology & Microbiology

The tertiary structure of a protein is ____

a. the amino acid sequence in a polypeptide chain b. generated by the formation of bonds between amino acids c. formed by a protein region folding on itself d. formed by the interaction of two or more polypeptide chain e. generated by bonding and folding of ribosomes attached to the endoplasmic reticulum

Biology & Microbiology

The image below represents the termites, bacteria, and protists that together share a mutualistic relationship.



image


a. one
b. two
c. three
d. four

Biology & Microbiology