Which mutation in DNA would lead to the change of a single amino acid in a protein?
A. a frameshift
B. a missense mutation
C. a nonsense mutation
D. one base insertion
E. one base deletion
B. a missense mutation
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Which nitrogenous base would only be found in RNA?
a. adenine b. thymine c. cytosine d. guanine e. uracil
AIDS is a secondary immunodeficiency disease that affects several types of immune cells.
Answer the following statement true (T) or false (F)
When DNA fragments are separated by electrophoresis, ________
a. the largest fragments move the fastest b. neutrally charged fragments move the fastest c. the smallest fragments move the fastest d. all the fragments move at the same rate
Certain proteins can bind to specific DNA regulatory sequences by entering
A. DNA's minor groove by using DNA polymerase and reading the nucleotide base pairs. B. the major groove of the DNA and reading the nucleotide base pairs. C. the minor groove of the DNA and reading the nucleotide base pairs. D. DNA's major groove by using DNA polymerase and reading the nucleotide base pairs. E. the major groove of RNA and reading the nucleotide base pairs.