8 Questions
What is the name given to the two-step process denoted DNA RNA protein?
Central dogma
Which type of RNA encodes the amino acid sequence of a polypeptide?
mRNA
What is the function of tRNA during translation?
Brings amino acids to ribosomes
Why is only one of the two DNA strands transcribed into an RNA during transcription?
The other DNA strand would have a complementary RNA sequence that would not be the correct sequence for function
What is the main function of snRNA in eukaryotic RNA processing?
Forms complexes for eukaryotic RNA processing
Which type of RNA, with ribosomal proteins, makes up the ribosomes?
rRNA
What does transcription produce as part of gene expression?
A copy of a DNA segment in the form of RNA
Which of the following is NOT one of the four main types of RNA molecules encoded by its own type of gene?
siRNA
Study Notes
Central Dogma
- The process of DNA → RNA → protein is known as the central dogma.
Types of RNA
- mRNA (messenger RNA) encodes the amino acid sequence of a polypeptide.
- tRNA (transfer RNA) brings amino acids to the ribosomes during translation.
- snRNA (small nuclear RNA) is involved in eukaryotic RNA processing, specifically in the splicing of mRNA.
Transcription
- Only one of the two DNA strands is transcribed into an RNA during transcription.
- Transcription produces mRNA as part of gene expression.
Ribosomes
- rRNA (ribosomal RNA) along with ribosomal proteins makes up the ribosomes.
RNA Molecules
- The four main types of RNA molecules are: mRNA, tRNA, rRNA, and snRNA.
- miRNA (microRNA) is not one of the four main types of RNA molecules encoded by its own type of gene.
Test your knowledge of the central dogma of gene expression, which involves the processes of transcription and translation. This quiz provides an overview of the fundamental concepts behind gene expression and the flow of genetic information.
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