1. What is natural selection and what is artificial selection?What evidence for natural selection can we gain by studyingartificial selection?

2. List the sequences of the mRNA molecules transcribed from thefollowing DNA template sequences Also, translate the associatedamino acid sequence for each.

T G A - T A G - T T G - C T T - G A G - A G T

m RNA =

A A =

3. Using the following template, replicate DNA.

Template: 3' A A G - G T C - T G A - T G G - C C A - T A G5'

Complementary strand:

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Beverley SmithLv2

24 Nov 2018

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1. What was the purpose of using blender to liquefy the onion before adding the DNA lysis. 2. What was the purpose of heating the onion solution before filtering it it and adding the ethanol? 3. what was the purpose of adding ethanol to the filtered DNA solution. 4. what is the template DNA for the following RNA strand. AUGCCGAUCCGUUAAG 5. If the RNA in the previous strand were translated, what would the order of the amino acid chain be? 6. List one possible mRNA strand that would code for the following amino acid chain: Mathionine, proline, glycine, glutamic acid, alanine. Don't forget to add the stop codon. 7.List the template DNA that would correspond to the mRNA strand in the previous question. 8. What amino chain would the following template DNA strand code for:--T A C G G C C C C G G A T T A A T T-? show your work?

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DNA Structure and Function Lab Report

Summary Questions

Name the three major components of DNA.

Which nitrogen bases pair within DNA?

What is the difference between replication, transcription, andtranslation?

Describe an advantage of genetic engineering.

List three differences between DNA & RNA.

DNA	RNA

If the base sequence on one DNA strand is 3â CCTAGTTAG 5â, whatwill the sequence be on the other strand of the helix duringreplication?

DNA	3â	C	C	T	A	G	T	T	A	G	5â
DNA	5â										3â

If 3â TGACCCATC 5â serves as the template for transcription,what will be the sequence of nitrogen bases on the newly formed RNAstrand?

DNA	3â	T	G	A	C	C	C	A	T	C	5â
mRNA	5â										3â

If a mRNA sequence is 3â UAA 5â, give the amino acid coded forduring translation. Refer to the chart in Exercise 5 of theLab.

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Assignment details for part one:

Transcribe and translate EACH of the three following DNA genesequences. Turn these in using the graphic organizer. The lettersrepresent the DNA N-base sequences of the genes.

The first is the original gene. The next two are mutations of theoriginal. Note that the changes (mutations) are shown in red.

Original Gene sequence 3'-T A C C C T T T A G T A G C C A CT-5

Mutated gene sequence 1 3â-T A C G C T T T A G T A G C C A TT-5'

Mutated gene sequence 2 3â-T A A C C T T T A C T A G G C A CT-5â

Also, answer the following questions:

â¢What is the significance of the first and last codons of an mRNAtranscript?
â¢What meaning do these mRNA codons have for proteinsynthesis?
â¢Did the mutations result in a change in the final proteins? If so,describe the change.
â¢In general, why might a change in amino acid sequence affectprotein function?