A "marker" in a genetic sense usually represents a site along a chromosome where a specific nucleotide sequence exists. What specific phrase is used when such markers are identified by restriction endonucleases and a particular set of DNA fragments is
generated?
A) expression QTL B) RFLP C) restriction site D) QTL
Answer: B
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A trait or disorder that is multifactorial is
A) present in more than one family member. B) found only in one part of the world. C) caused by one or more genes and environmental influences. D) caused by a single gene, with no environmental input.
Old man's beard (Usnea trichodea) and yellow Evernia lichens are sensitive to elevated levels of ____
a. sulfur dioxide b. nitrogen oxides c. nitrate d. sunlight e. fluoride salts
Once the amino acid on the second tRNA bonds with the amino acid of the first tRNA, what happens to that first
tRNA?
a. it remains attached to the rRNA b. it moves into the nucleus to get more instructions from mRNA c. it breaks down into its component nucleotides d. it leaves the ribosome and may pick up another amino acid e. it transforms into an mRNA molecule
Proteins are built from _____.
Fill in the blank(s) with the appropriate word(s).