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WorksheetsNon-Coding RNAs Quiz
Total questions: 16
Worksheet time: 8mins
What is the central dogma of molecular biology?
DNA → mRNA → proteins
mRNA → DNA → proteins
Proteins → mRNA → DNA
Proteins → DNA → mRNA
What percentage of the human genome codes for proteins?
50%
10%
98%
2%
What was the initial belief about the 'junk DNA' in the genome?
It was involved in RNA synthesis
It was considered useless
It encoded important proteins
It was responsible for gene regulation
What are the two known classes of non-coding RNAs?
Ribosomal RNAs and transfer RNAs
Messenger RNAs and ribosomal RNAs
Regulatory non-coding RNAs and housekeeping non-coding RNAs
Small non-coding RNAs and long non-coding RNAs
What is the function of transfer RNAs?
Decoding the mRNA sequence and translating it into an amino acid sequence
Carrying genetic information in the cell
Regulating gene expression
Building the structural components of ribosomes
What is the most abundant RNA species in the cell?
Ribosomal RNAs
Transfer RNAs
Messenger RNAs
Small non-coding RNAs
What is the function of microRNAs?
Decoding the mRNA sequence
Cutting up coding mRNAs
Building ribosomes
Transcribing DNA into mRNA
What is the role of the non-coding RNA Xist?
Repairing damaged DNA
Inactivating one of the X chromosomes in female cells
Enhancing protein synthesis
Regulating gene expression in male cells
What is the RNA World hypothesis?
The idea that the first biomolecular processes were based on RNA
The concept of using RNA as a data storage molecule
The hypothesis that RNA is only involved in protein synthesis
The theory that RNA is the most stable nucleic acid
What are ribozymes?
RNAs that regulate gene expression
RNAs responsible for DNA replication
RNAs involved in protein synthesis
RNAs with a catalytic function like enzymes
What is the function of cyclic AMP and cyclic di-GMP?
Mediating signalling within or between cells
Inactivating X chromosomes
Decoding the mRNA sequence
Building ribosomes
What is the main challenge in studying the RNA World hypothesis?
Lack of understanding of gene regulation
Difficulty in sequencing the human genome
Lack of direct evidence from 4 billion years ago
Limited knowledge of non-coding RNAs
What is the focus of the author's research project?
The interaction between proteins and RNAs
The sequencing of the human genome
The role of non-coding RNAs in diseases
The function of RNAs on the surface of chromosomes during cell division
What is the significance of the story of junk DNA?
It explains the evolution of the RNA World
It challenges the central dogma of molecular biology
It proves the uselessness of non-coding RNAs
It highlights the complexity of the genome
What is the importance of having an open mind in scientific research?
To notice unexpected and beautiful things hidden behind nature's complexity
To ignore the complexity of nature
To adhere strictly to established theories
To focus only on the known functions of biomolecules
There was a lot of additional important information in this article. Do you think more information like this should be included in CSII?
Definitely not. We already have a lot to learn
No. What we have OK
Maybe.
Yes. It would be a more complete picture of RNA
Definitely yes. We go too slowly and this is easy to add to what we are doing
