Which amino acid has been implicated in the formation of artery-blocking plaques?
a. isoleucine
b. threonine
c. homocysteine
d. valine
e. phenylalanine
C
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Researchers have found that schizophrenia may be caused by multiple genes, each contributing equally to the behavioral phenotype. This is an example of _____
a. a polygenic additive model b. epistasis c. single gene, dominant trait d. single gene, recessive trait e. genome wide association
When you use an over-the-counter ovulation kit, what is the kit actually detecting in your urine?
1.human chorionic gonadotropin 2.estrogen 3.progesterone 4.LH
During a brain surgery, a surgeon passes an instrument through the dura mater. Which one of the following does the surgeon pass through next?
A) bones of the skull B) vertebrae C) cerebrospinal fluid D) pia mater E) arachnoid
A(n) nonsense mutation is a base-pair substitution that results in the replacement of one amino acid with another
__________________ Indicate whether the statement is true or false.