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WorksheetsIB HL 7.2 Transcription
Total questions: 10
Worksheet time: 5mins
What is the function of RNA polymerase?
Adds DNA nucleotides to the 3' end of a growing strand
Adds RNA nucleotides to the 3' end of a growing strand
Adds DNA nucleotides to the 5' end of a growing strand
Adds RNA nucleotides to the 5' end of a growing strand
Which answer shows the sections of a gene in the correct order?
Promoter, coding sequence, terminator
Coding sequence, promoter, terminator
Terminator, coding sequence, promoter
Promoter, terminator, coding sequence
When does transcription stop?
When RNA polymerase detaches from the DNA
When the terminator sequence is reached
When the end of the coding sequence is reached
When there are no more nucleotides left
What binds to the promoter to initiate transcription?
Transcription factor protein
RNA polymerase enzyme
Complementary RNA nucleotides
DNA helicase
Which of the following is not a feature of post-transcription?
Removal of exons by splicing
Addition of a 5' methyl cap
Addition of a 3' poly-A tail
Which of the following statements is incorrect?
The mRNA strand is complementary to the antisense DNA strand
The mRNA strand is identical to the antisense DNA strand, except for uracil
The mRNA strand is identical to the sense DNA strand, except for uracil
Which of the following is not a possible result of alternative splicing for a gene consisting of 4 exons?
2-3-4
1-2-4
1-3
1-3-2
If the antisense strand of a gene has the sequence AAT-GCC, what will be the transcribed mRNA sequence?
AAU-GCC
TTA-GCC
AAT-GCC
UUA-GCC
What is a promoter region?
A non-coding section of a gene that immediately precedes the coding sequence
A non-coding section of a gene that immediately follows the coding sequence
A coding section of a gene that immediately precedes the terminator
A coding section of a gene that immediately follows the terminator
The sense and antisense strands of DNA are the same for every gene on a chromosome.
True
False
