RNA
The 4 nitrogenous bases of an RNA molecule include....
adenine, guanine, cytosine, uracil
The process in which DNA is used to make an mRNA strand.
transcription
In what organelle is mRNA read and the protein synthesized?
the ribosome
True or False
RNA can be found in the nucleus and cytoplasm
True
The site where mRNA is created from the DNA sequence. (where does transcription happen?)
nucleus
This type of RNA transfers the appropriate amino acid.
tRNA
Name the three different types of RNA
mRNA, tRNA, rRNA
What enzyme adds nucleotides to the growing RNA strand during elongation of transcription?
RNA polymerase
These three nitrogen bases are complimentary to the mRNA codons during translation and found on tRNA
anticodon
RNA usually has ____ strands
one
Ribosomes read the mRNA strand _____ codon at a time. Each codon is made of ______ nitrogen bases.
1, 3
The type of RNA that carries the message from the nucleus to the ribosome
mRNA
True or False
mRNA can't leave the nucleus because it's too big.
false
The sequence of bases on mRNA that allows the initiation step of translation to begin is ______
the START codon
Translation happens at the _________
Ribosome
An mRNA strand is AUG-CUA-CCG. What would be the resulting tRNA anticodons?
UAC-GAU-GGC
A ribosome will continue to create a protein until it encounters a ____.
STOP codon
Protein synthesis actually begins in the ___________, when DNA transcribes to _________
Nucleus, RNA
List 3 differences between a DNA & RNA molecule.
DNA is double stranded; RNA is single
N. Bases for DNA: A, C, G, T; RNA: A, U, C, G
DNA has a deoxyribose sugar; RNA: ribose sugar
DNA has the genetic code; RNA uses DNA to carry the message.
DNA can't leave the nucleus; RNA has to leave the nucleus
The process of protein synthesis in which mRNA is used to produce proteins is known as ______.
translation
What is the start codon ?
AUG