Lab 13 Essay

1011 WordsNov 14, 20145 Pages
Debbie Lester Biology Lab 13 1. Arrange the following molecules from least to most specific with respect to the original nucleotide sequence: RNA, DNA, Amino Acid, Protein Protein, amino acid, RNA, DNA 2. Identify two structural differences between DNA and RNA. Two structural differences between DNA and RNA would be that RNA contains ribose while DNA is missing the hydroxyl group form its ribose. Also, RNA is created by transcription of a gene locate in the cells of DNA. DNA is doubled stranded whereas RNA is single stranded. 3. Suppose you are performing an experiment in which you must use heat to denature a double helix and create two single stranded pieces. Based on what you know about nucleotide bonding, do you think…show more content…
We will not go through the process here, but as an illustration of this “alternate splicing”, remove codons (beads) 52 - 66 from your sentence above. b. What does the sentence say now? (re-write the entire sentence) Mutations are simply changes in the sequence of nucleotides. There are three ways this occurs: 1. Change a nucleotide(s) 2. Remove a nucleotide(s) 3. Add a nucleotide(s) 3. Using the sentence from exercise 1B: a. Change the 24th bead to a different color. What does the sentence say now (re-read the entire sentence)? Does the sentence still make sense? b. Replace the 24th bead and remove the 20th bead (remember what was there). What does the sentence say (re-read the entire sentence)? Does the sentence still make sense? If it doesn’t make sense as a sentence, are there any words that do? If so, what words still make sense? c. Replace the 20th bead and add one between bead numbers 50 and 51. What does the sentence say now? Does the sentence still make sense? d. In 3.a (above) you mutated one letter. What role do you think the redundancy of the genetic code plays in this type of change? e. Based on your observations, why do you suppose the mutations we made in 3.b and 3.c are called frame shift mutations? f. Which mutations do you suspect have the greatest consequence? Why? Experiment 2: Transcription and Translation DNA codes for all of the proteins manufactured by any organism (including
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