Question

11. What is the first amino ackd of any initial protein that is A. Valine C. Lysine D. Tryptophan E. Methionine 12. Choose all that apply. Polymerase Chain Reaction (PCR) can be used to A Create a DNA profile of suspects, victims, and criminals during crime scene investigations B. Duplicate pieces C. Help determine paternity D. Stimulate cell division E. Stimulate gene expression of DNA into many copies using a special form of DNA polymerase 13. What occurs during transcription? A A copy of the original DNA molecule is produced B. A single strand of RNA is produced from a molecule of DNA C. Triplet nucleotides of RNA are read by the ribosome and turned into amino acids D. The amino acid chain grows to form a protein What type of mutation is likely to change only one amino acid in a protein? A. Base substitution B. Base deletion C. Base insertion D. Frame Shift mutation 14. 15. What is recombinant DNA? A. Multiple identical copies of a gene carrying DNA B. DNA sequences joined from two different sources C. RNA polymerase D. DNA fragments (pieces of DNA)

Answer 1

ANSWER 11: OPTION E - Methionine

This is because the first triplet codon is AUG which codes for methionine in a protein chain when the ribosome is read.

ANSWER 12: OPTION A,B,C

ANSWER 13: OPTION B- A single strand of RNA is produced from a molecule of DNA

During transcription, the DNA strand acts as a template to be transcribed into a single-stranded RNA which is complementary to this template DNA strand.

ANSWER 14: OPTION A - Base substitution

This is because the base substitution alters only 1 codon which codes for a single changed amino acid.

ANSWER 15: OPTION B- DNA sequences joined from different sources

The rDNA technology combines the genome of 2 different organisms to render a functional recombinant DNA molecule.