Which event can introduce a protein domain into a pre-existing protein?
a. gene alignment
b. intron shuffling
c. exon shuffling
d. peptide shuffling
e. exon splicing
ANSWER: c
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The exoskeleton of arthropods is composed of:
a. chitin. b. silica. c. cellulose. d. calcium carbonate. e. starch.
A female child inherits one X chromosome from her mother and one from her father. What sex chromosome does a male child inherit from each of his parents?
What will be an ideal response?
What may be a result of the denaturation of proteins?
a. formation of hydrogen bonds b. loss of three-dimensional structure c. removal of R groups from amino acids d. no change in enzyme activity e. formation of covalent bonds
A locus at which different individuals in a population carry different alleles is known as a(n) ________
Fill in the blank(s) with correct word