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2. a) If there are 5 different VNTR alleles at the VNTR63 locus, then how many g

ID: 63632 • Letter: 2

Question

2.

a) If there are 5 different VNTR alleles at the VNTR63 locus, then how many genotypes would be possible in the population (ie V63-1/V63-2 would be one possible genotype)?

options:

a

5

b

10

c

15

d

20

e

25

f

70

b) If you perform PCR analysis of this region using the PL and PR primers, how many bands will you see on a gel from an individual with the following genotype:

V63-2/V63-2

options:

a

0

b

1

c

2

d

3

e

4

f

70

c) If you perform PCR analysis of this region using the PL and PR primers, how many bands will you see on a gel from an individual with the following genotype:

V63-4/V63-5

options:

a

0

b

1

c

2

d

3

e

4

f

70

d) If you perform PCR analysis of this region using the PL and PR primers, how many bands will you see on a gel from an individual with the following genotype:

V63-1/V63-2

options:

a

0

b

1

c

2

d

3

e

4

f

70

d) What will be the size of the DNA fragment in base pairs (bp) following amplification of V63-4 with the PL and PR primers as shown in the diagram on your worksheet (Q6)?

options:

a

10

b

30

c

40

d

50

e

70

f

80

e) The line below represents a mature eukaryotic mRNA. Place the following list of items in the proper order that you would find them on the mature mRNA.Note: some of the items may NOT be found on this mRNA.

5’--------------------------------------------------------------------------------------------3’

List of items:

Items to be ordered on the mRNA:

stop codon

poly-A tail

intron

3'-UTR

promoter

start codon

Kozak sequence

5'-cap

Shine-Delgarno Sequence

5'-UTR

Note: not all of the items may be on this particular mRNA

a

5

b

10

c

15

d

20

e

25

f

70

Explanation / Answer

1. (c) 15 ----- 1/1; 1/2; 1/3; 1/4; 1/5; 2/2; 2/3; 2/4; 2/5; 3/3; 3/4; 3/5; 4/4; 4/5; 5/5.

2. (b) 1 (homozygous genotype)

3. (c) 2 (heterozygous genotype)

4. (c) 2 (heterozygous genotype)

5. (e) 70 (15 nucleotides of P1, 15 nucleotides of P2, 10 nucleotides each of 1, 2, 3 and 4)

6. 5' CAP ----- 5' UTR ----- Shine-Delgarno sequence ----- Kozak Sequence ----- Start codon ----- Stop codon -----

3' UTR ----- Poly-A tail

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