SAT II Protein Synthesis- Ignore the Numbers
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3- The answer is B- 3 nucleotides (or a codon) specify 1 amino acid
4- Use the base pairing rules for RNA (A with U, C with G). You should get UAC GAC
or B (must divide into groups of 3)
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5. If given the tRNA, CAU, use the base pairing rules to find the mRNA, or GUA. Then
use the basing pairing rules to determine the DNA, substituting the Us for Ts. You should
get CAT answer B
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Chromosomes are made of proteins and DNA (deoxyribonucleic acid) so the answer is D
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15. All organic molecules contain carbon so only statement II is correct so the answer is
B
84. Transcription is the process by which mRNA is made using DNA as a template so
answer B would be correct- however, if you answered A that is okay- tRNA is also
produced using transcription
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28. The base pairing rules are A with T and C with G for DNA so A and T should be the
same and C and G should be the same. The correct answer is A
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19. A protein molecule is made up of strings or chains of amino acids so A is the best
answer
20. If you are given TTATTAGACCT for the DNA and you want the RNA you need to
use the base pairing rules, substituting Us for Ts in the RNA. Your resulting RNA would
be AAUAAUCUGGA or answer E
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24. DNA is deoxyribonucleic acid, named after the sugar in DNA, deoxyribose so the
answer is A
42. the sequence of 3 nucleotides on tRNA is an anticodon or A
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10. E, RNA is active during translation
11. The enzyme used in transcription is D, RNA polymerase
12. Protein synthesis takes place outside the nucleus in the cytoplasm or C
39. Use the base pairing rules to find the DNA (just include Ts not Us) so the answer
should be D
40. mRNA does not have deoxyribose (only found in DNA) so the answer should be B
41. The process of making a protein is translation or C
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13. Amino acids are the basic components or proteins, but there are only about 20 and
they have nothing to do with providing energy so only statement II is correct so the
answer is B
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92. In group 1, the proteins are radioactive. When a virus infects a cell, the DNA is
injected into the cell and the protein coat stays out of the cell. You would expect to find
the radioactive protein outside of the cell in the liquid due to this reason so answer A is
correct
94. The Hershey Chase experiment showed that DNA is the genetic material and showed
that viruses can replicate by passing on its DNA so the answer is A
95. During the lytic cycle (the active virus cycle), more viruses (both DNA and protein
coats) are produced using the host cell’s resources. Eventually, the viruses will leave the
cell, bursting the cell’s membrane. The only thing that will not occur is the growth of the
bacterial cell so E is the answer.