Translation: a) is the process of making an RNA copy of the DNA code b) is accom
ID: 87417 • Letter: T
Question
Translation: a) is the process of making an RNA copy of the DNA code b) is accomplished by complimentary base pairing between DNA and RNA nucleotides c) Takes place in the nucleus in eukaryotes d) Requires ribosomes e) a, b, and c are correct Which of the following statements about the Genetic Code is NOT true? a) Genetic information flows from DNA to RNA to protein. b) The genetic code uses base triplet codons. c) Multiple codons may indicate the same amino acid d) A given codon may indicate more than one amino acid. e) None (All of the above statements are true). Restriction Endonucleases... a) are naturally found in bacteria. b) can be used to generate "sticky ends" for molecular cloning. c) cut DNA at specific double-stranded sequences. d) generates DNA from an RNA template. e) a, b, and c are correct Which of the following IS NOT required for PCR? a. DNA Polymerase b. dNTPs c. Helicase d. Primers e. None of the above (all are required) Which is not a technique used in DNA fingerprinting? a. Restriction digests (cutting DNA with Restriction enzymes) b. Gel electrophoresis c. "Southern Blot" (transference of DNA onto nitrocellulose paper/membrane) d. "Western Blot" (transference of proteins onto nitrocellulose paper/membrane) e. None of the above (all are used for DNA fingerprinting) Recombinant DNA: animal DNA. a. Is defined as a mix of human and animal DNA. b. Contains a segment of DNA from a foreign source. c. Is created from embryonic stem cells. d. is required for human cloning. e. None of the above.Explanation / Answer
31. ANS: D. Requires ribosomes.
Explanation: The process of making proteins on the ribosome based on instructions from messenger RNA is called as translation.
32. ANS: E. All is correct
Explanation: The flow of genetic information follows the "Central Dogma" of molecular biology: DNA is copied as messenger RNA (mRNA) which in turn is the template for protein synthesis (uses rRNA and tRNA).
There are only 20 different amino acids but 64 possible codons, most amino acids are indicated by more than one codon.
33. ANS: E. A,B & C are correct
Explanation: Restriction endonuclease is an enzyme that cleaves DNA into fragments at or near specific recognition sites within the molecule as known as restriction sites.
These enzymes are found in bacteria and archaea and provide a defense mechanism against invading viruses.
Many restriction enzymes cut in an offset fashion. The ends of the cut have an overhanging piece of single-stranded DNA. These are called "sticky ends"
34. ANS: C. Helicase
Explanation: For PCR there are five chemical components needed, including a DNA template, DNA polymerase enzyme, primers, nucleotides and reaction buffer.
35. ANS: D. Western blot
Explanation: DNA fingerprinting is a method used to identify an individual from a sample of DNA by looking at unique patterns in their DNA.
DNA fingerprint analysis is based on the "Southern" hybridization technique.
Western blotting is used to detect a particular protein in a mixture. So therefore it is not used for DNA or RNA,
36. ANS: B. contains a segment of DNA from foreign sources.
Explanation: Recombinant DNA technology, joining together of DNA molecules from two different species that are inserted into a host organism to produce new genetic combinations that are of value to science, medicine, agriculture, and industry.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.