lecture quiz 5 Flashcards

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1
Q

For the human CYBA gene, which of the following contributes to the differences in the proteins that are created from Splice variant #1 and Splice variant #2?

  • Different transcriptional stop location
  • Different translational start location
  • Alternative 5’ or 3’ splice site
  • Different transcriptional start location
  • Inclusion of an additional exon(s)
  • Different length of the pre-mRNA
  • Different translational stop location
A
  • Alternative 5’ or 3’ splice site
  • Different translational stop location
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2
Q

For the human SMNDC1 gene, which of the following contributes to the differences in the mature mRNAs created from Splice variant #1 and Splice variant #2?

  • Different transcriptional start location
  • Inclusion of an additional exon(s)
  • Different transcriptional stop location
  • Different translational stop location
  • Different length of the pre-mRNA
  • Different translational start location
  • Alternative 5’ or 3’ splice site
A
  • Inclusion of an additional exon(s)
  • Different length of the pre-mRNA
  • Different translational start location
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3
Q

Using NCBI, look at the alternatively spliced transcripts for human PPIF. The coding region for splice variant #1 is longer than splice variant #2.

True/False

A

False

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4
Q

Using NCBI, look at the alternatively spliced transcripts for human CYBA. The coding region for splice variant #1 is longer than splice variant #2.

True/False

A

False

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5
Q

Using NCBI, look at the alternatively spliced transcripts for human SMNDC1.

What nucleotides of the pre-mRNA would be the same for splice variant #1 and splice variant #2 ?

Insert the nucleotides from the start to the end of the shared region.

A

50-11930

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6
Q

Using NCBI, look at the alternatively spliced transcripts for human SMNDC1

What nucleotides of the pre-mRNA would be the same for splice variant #1 and splice variant #2 ?

Insert the nucleotides from the start to the end of the shared region.

A

1350-14191

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7
Q

Which polymerases add nucleotides to an existing nucleic acid strand?

  • Telomerase
  • Primase
  • Topoisomerase
  • DNA polymerase
  • Poly A polymerase
  • RNA polymerase
A
  • DNA polymerase
  • Poly A polymerase
  • Telomerase
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8
Q

Which polymerases synthesize RNA?
- Primase
- DNA polymerase
- Poly A polymerase
- RNA polymerase
- Topoisomerase
- Telomerase

A
  • Primase
  • RNA polymerase
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9
Q

Below is the DNA sequence of a gene, what is the protein sequence?

5’GGTAA*TGCTAGCTCCCCCTGACATCGATATCTGACTAGCTG-3’

If a nucleotide was inserted into this sequence at the * what would be the impact on the protein?

A

there would be no protein

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10
Q

Below is the DNA sequence of a gene, what is the protein sequence?

5’GGTAATGCTAGCTCCCCCTGACATCGATATC*TGACATAGCTG-3’

If a nucleotide was inserted into this sequence at the * what would be the impact on the protein?

A

The protein would be longer

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11
Q

Below is the DNA sequence of a gene, what is the protein sequence?

5’-GCCTAGTAGATGAAACTACTCGCTTGACCTAGCCCTGACATCGATATCGACTAGCTG-3’

Insert the amino acid sequence using the single letter designation for the amino acid

A

MKLLA

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12
Q

Using NCBI, look at the alternatively spliced transcripts for human CTRB1. Translation terminates at the same nucleotide for both splice variant #1 and splice variant #2.

true/false

A

False

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13
Q

Using NCBI, look at the alternatively spliced transcripts for human PPIF. Transcription terminates at the same nucleotide for both splice variant #1 and splice variant #2.

true/false

A

True

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14
Q

Using NCBI, look at the alternatively spliced transcripts for human ADH1B. Transcription starts at the same nucleotide for both splice variant #1 and splice variant #2.

true/false

A

True

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15
Q

Using NCBI, look at the alternatively spliced transcripts for human CYBA. Translation terminates at the same nucleotide for both splice variant #1 and splice variant #2.

true/false

A

false

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