1. What are the functions of RNA? Why
do you need it?
2. What is RNA made of?
3. What is the structure of RNA?
4. What are the types of RNA?
5. How is RNA modified/regulated?
in your teaching
1. To be
used by the cell, DNA is transcribed into ribonucleic
is synthesized by a DNA-dependent RNA polymerase using ribonucleotides.
3. A ribonucleotide
consists of a phosphate group, attached to the 5’ carbon
of the sugar ribose. One of four nitrogenous ‘bases’,
either a pyrimidine (cytosine or uracil) or a purine (guanine
or adenine), is attached to the 1’ carbon of the sugar.
can perform many functions: structural, catalytic,
informational and regulative. Translation involves mRNA,
tRNA and the RNAs of the ribosome.
enzymes that mediate RNA synthesis can synthesize RNA de
novo, that is without a primer.
After their synthesis (transcription), RNA can be modified
in various ways, for example by splicing, 5' inverted G cap
addition, RNA editing and post-transcriptional
modification of the nucleotide bases.
their ability to both template their own replication and
to act as catalysts, RNAs are often assumed to have
played a key roll in the origins of life. This is so-called
RNA world hypothesis.
8. A ribosomal
RNA catalyses peptide bond formation during mRNA/tRNA-based
translation on ribosomes.
tracking & responding only
do you teach?
I do not
I teach, but not biology
I am researcher in the private sector
I teach elementary