16 Jun Describe all of the differences between DNA and RNA
Question
1.
Describe all of the differences between DNA and RNA
2.
What is the structure of a nucleotide? What are DNA’s four nucleotides, and how do they pair up?
3.
Define DNA replication. What does it mean to be semiconservative?
4.
The 3 steps to DNA replication are:
5.
What is transcription? Translation?
6.
Describe the significance of each of the molecules in gene expression.
DNA
mRNA
tRNA
rRNA
Amino Acid
Polypeptide
7.
What do you think the purpose of the blender was in your DNA extraction experiment?
8.
If you did the experiment with both plant and animal cells, how do you think their DNA would
compare?
9.
In order to study human genes, scientists must first extract the DNA from human tissues. Would you
expect the method of DNA extraction for human DNA to be the same as the method you used to
extract DNA from your specimen? Why or why not?
10.
List two possible scientific questions that could be explored by studying your specimen’s DNA.
11. It is also possible to extract DNA from your human cells. Would a cell in your liver contain the same
chromosomes as a cheek cell? Explain.
12. What do you think are uses of DNA extracted from a human cell?
13. What mutation did the virtual lab generate for you (ie. Third A becomes a G)?
14. Original Sequence of mRNA and Protein? Use this format:
mRNA: AUGCACACG (etc. to match yours)
Protein: Met – His – Thr (etc. to match yours)
15. Mutated Sequence of mRNA and Protein? Use this format:
mRNA: AUGCACACG (etc. to match yours)
Protein: Met – His – Thr (etc. to match yours)
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