Chapter1 - Wild type flowers are therefore purple. 1 A- / \...

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Chapter 1 Problems BIO 304 1. How many of each nucleotide are in a DNA molecule 100 nucleotides long whose GC content is 56 percent? A= T= C= G= 2. What tRNA anticodon will recognize the transcript codon UGG (tryptophan)? 3. A DNA sequence that is 53 nucleotides long could have how many possible sequence combinations? You do not have to solve the problem, only set up the equation. 4. One strand of DNA contains the following sequence: TTACGTAGTCAG - what is the complementary sequence of the other strand of the DNA? 5. Assume that the DNA sequence you just wrote is the template for mRNA transcription. What would be the sequence of the transcript? 6. In a cellular pathway, Enzyme A converts molecule 1 to molecule 2 and 3. Enzyme B converts molecule 2 to molecule 4, and so on, as illustrated below. Enzyme C changes molecule 4 into pigment that makes white flowers appear blue, and enzyme E converts molecule 5 into a pigment that makes white flowers appear red.
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Unformatted text preview: Wild type flowers are therefore purple. 1 A- / \ -A 2 3 B- / \ -D 4 5 C- / \ -E Blue Red A. If your plant has white flowers and only one mutant (inactive) enzyme which enzyme is mutated? B. If you had exactly two mutated, inactive enzymes, which two would they HAVE to be to produce a blue flower? C. If enzymes A, D, and E are all inactive mutants, what color flower would your plant produce? 7. Most people have heard that DNA carries genetic information. How would you explain, in a few sentences, the steps involved in turning that information into a functional, three-dimensional, molecule (protein). Be sure to include how the three-dimensional shape is decided. 8. You use a probe to detect the Shiznit protein in a western blot experiment. Would you be able to use that same probe to detect Shiznit mRNA in a northern blot? Why or why not?...
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This note was uploaded on 08/29/2010 for the course BIO 304 taught by Professor Fox during the Fall '08 term at Kentucky.

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Chapter1 - Wild type flowers are therefore purple. 1 A- / \...

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