Which of the following is the name of the three-base sequence in the mRNA that binds to a tRNA molecule?
A) P site
B) codon
C) anticodon
D) CCA binding site
Ans: B) codon
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During human development, the maternal and fetal blood circulation do not become separate until the second trimester
1.True 2.False
__________ are regions in an organism’s DNA that
encode information about heritable traits. Fill in the blank(s) with the appropriate word(s).
Which of the following correctly reflects the division of the history of life on Earth, from most inclusive to least inclusive?
A. epoch - period - era B. epoch - era - period C. era - epoch - period D. period - epoch - era E. era - period - epoch
How does DNA move during gel electrophoresis?
A) The DNA moves toward the negative electrode. B) Larger pieces of DNA move at a faster rate. C) DNA moves at a constant rate, regardless of fragment size. D) Smaller pieces of DNA move faster toward the positive electrode.