The class of an antibody is determined by the structure of its
a) antigen-binding site
b) constant region
c) variable region
Answer: b) constant region
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Does reproductive cloning always involve somatic cell nuclear transfer? What will be an ideal response?
Proteins that influence gene expression by binding to DNA are called _____
Fill in the blank(s) with correct word
The observation that SNPs account for most of the differences in the coding regions between the human and
chimpanzee genomes suggests that ____. a. the two genomes are too different to suggest an evolutionary relationship b. Neanderthals descended directly from chimpanzees c. small changes in amino acid sequences account for big differences in phenotype d. most of the differences in phenotype are due to DNA sequence changes e. humans descended directly from chimpanzees
Which of the following is NOT one of the American Cancer Society’s warning signs?
a. change in bowel and bladder habits b. changes in appetite c. sores that don’t hea d. nagging cough e. unusual bleeding