GENETICS or should I say death
Genetics Challenge: Test Your Knowledge!
Are you ready to dive into the fascinating world of genetics? This quiz is designed to challenge your understanding of eukaryotic and prokaryotic gene expression concepts. With multiple-choice questions, you will navigate through the intricacies of RNA, introns, and more!
Key Features:
- Multiple-choice format
- Covers essential genetics concepts
- Fun and educational
Which steps below are unique to eukaryotic gene expression, but not to prokaryotic gene expression?
Transcription
RNA splicing
Addition of 5'CAP and 3'PolyA tails
RNA splicing and Addition of 5'CAP and 3'PolyA tails
If we examine the structure of a eukaryotic gene, which of the following will be found in its DNA sequence?
Promoter
5'CAP
3'PolyA tail
Shine Dalgarno sequence
All of the above
Which of the following statement is TRUE regarding RNAs in eukaryotic gene expression?
They are all transcribed by a single RNA polymerase
They are all used for translation
There are 5 different types of RNA molecules
They are all transported out of the nuclei after processing
According to the experiment in Figure 11.19, the R loop is the evidence for an intron in the mouse beta-globin gene. In this experiment, the RNA (as in green) complements with ________ in the DNA strand?
The template strand of the exon
The non-template strand of the inton
The non-template strand of the exon
The template strand of the intron
According to the textbook, translation follows the same steps in prokaryotes and eukaryotes. The large ribosomal subunits contain 23S or 28S rRNA, which serves as the enzyme for peptide bond formation. This enzymatic activity is known to be _______________.
Peptidal tansferase
Aminoacyl-tRNA synthetase
Elongation factor
Protein polymerase
According to the central dogma of biology, DNA is ________ into mRNA, and then is __________ into polypeptide
Translated...translated
Transcribed..translated
Translated...transcribed
If a mutation occurs to the initiation codon AUG, what will happen?
No transcription in prokaryotes only
No transcription in both prokaryotes and eukaryotes
No translation in both eukaryotes and prokaryotes
Nothing will happen
Which type of RNA molecules are part of the spliceosomes in eukaryotes?
TRNA
SnRNA
MiRNA
RRNA
Ccording to Beadle and Tantum's experiment, which of the following is correct?
If one mutant strain can't make folic acid, one needs to supplement it in the minimal medium to grow bacteria
Wildtype strains only grow on complete medium, but not on minimal medium
Mutant strains grow on both complete and minimal medium
If one mutant strain can't make niacin, it will not grow on the complete medium
The genetic code is triplet. So how many reading frames are there for a given mRNA sequence?
32
3
2
Genetics is hard
Splicing signals (dinucleotide sequence in the intron)
Promoter
Start codon also known as initiator codon
5'CAP sequence
Ou see partial sequence of a gene as follows (non template strand shown) ...TATAAA(8nts)GGCCAAGGAGCCGCCATGGAACCTGAAG...AAAAAAAAAAAAA... +1 initiation site is underlined. Is this a prokaryotic or eukaryotic gene? Why?
Eukaryotic gene because it has a TATA box
Prokaryotic gene because it has the Shine Dalgarno sequence
Prokaryotic gene because it has -10 AT rich region
Eukaryotic gene because it has poly A tail
Which enzyme is responsible for the synthesis of pre-mRNA?
DNA
RNA poly II
RNA poly I
RNA poly
RNA poly III
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