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Gel #1 : Analyze the gel as a whole using the first gel picture on the next page

ID: 37711 • Letter: G

Question

Gel #1: Analyze the gel as a whole using the first gel picture on the next page.  Complete the first column in the table below.

Gel #2, Student #4: Analyze the gel as a whole using the second gel picture on the next page.  Analyze the quadrant of the gel for the designated student number.  Complete the remaining columns in the table below.

Answer the following questions about the labeled gel.  For the Explanation section, put an ?X? in boxes where the option is possible.  Leave boxes where the option is not possible blank.

Gel number

1

2

2

2

Sample name

A-COI

A-COI

P-rbcL

B-16S

Number of PCR bands in the lane

Approximate sizes of the bands in the lane (bp)

     

     

     

Explanation

Ethidium bromide was not added to the gel

Component of the Taq mix was degraded

No primers in the master mix

DNA template not added to PCR tube

Not enough DNA in genomic DNA prep or

bacterial culture

Contamination of genomic DNA or PCR sample

Non-specific primer binding

Samples switched when loaded on the gel

PCR was performed correctly

Sample should be sequenced

Please Help!

Gel number

1

2

2

2

Sample name

A-COI

A-COI

P-rbcL

B-16S

Number of PCR bands in the lane

Approximate sizes of the bands in the lane (bp)

     

     

     

Explanation

Ethidium bromide was not added to the gel

Component of the Taq mix was degraded

No primers in the master mix

DNA template not added to PCR tube

Not enough DNA in genomic DNA prep or

bacterial culture

Contamination of genomic DNA or PCR sample

Non-specific primer binding

Samples switched when loaded on the gel

PCR was performed correctly

Sample should be sequenced

Gel #1: Analyze the gel as a whole using the first gel picture on the next page. Complete the first column in the table below. Gel #2, Student #4: Analyze the gel as a whole using the second gel picture on the next page. Analyze the quadrant of the gel for the designated student number. Complete the remaining columns in the table below. Answer the following questions about the labeled gel. For the Explanation section, put an a??Xa?? in boxes where the option is possible. Leave boxes where the option is not possible blank.

Explanation / Answer

Gel # 1

Gel number

1

2

2

2

Sample name

A-COI

A-COI

P-rbcL

B-16S

Number of PCR bands in the lane

0

0

1

1

Approx Size of band (bp)

0

0

600

1500

Gel # 2

Gel number

1

2

2

2

Sample name

A-COI

A-COI

P-rbcL

B-16S

Number of PCR bands in the lane

1

2

1

1

Approx Size of band (bp)

700

700, 300

700

1500

Gel number

1

2

2

2

Sample name

A-COI

A-COI

P-rbcL

B-16S

Number of PCR bands in the lane

0

0

1

1

Approx Size of band (bp)

0

0

600

1500