Anti-A and anti-B antibodies are natural antibodies and are present at birth
Indicate whether this statement is true or false.
FALSE
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____ is a large, double-stranded, helical molecule that contains instructions for assembling a living
organism from simpler molecules.
a. RNA b. DNA c. ATP d. NADPH e. Protein
Turner’s syndrome individuals have how many chromosomes?
a. 23 b. 24 c. 45 d. 46 e. 47
Amino acids are ampholytes because they can function as either a(n):
A) acid or a base. B) neutral molecule or an ion. C) polar or a nonpolar molecule. D) standard or a nonstandard monomer in proteins. E) transparent or a light-absorbing compound
Endonucleases and exonucleases are enzymes that can remove nucleotides from a polynucleotide chain. An endonuclease removes nucleotides ________ while an exonuclease removes nucleotides ________.
A. from the ends of the chain; internally B. internally; from the ends of the chain C. from the 3' end of the chain; from the 5' end of the chain D. from the 5' end of the chain; from the 3' end of the chain