Nucleic acids Flashcards
what does nucleic acids control?
cell growth and reproduction
contains all genetic info
Contains code to make proteins
DNA
controls chemical process in an organism
DNA
purine
adenine and guanine
pyrimidine
thymine and cytosine
how are nitrogen base pairs paired together?
weak hydrogen bonds
DNA helices
unzips the dna
what happens after the DNA is unzipped?
free nucleotides fill in space
how do new nucleotides bond?
with DNA polymerase
3 types of RNA
ribosomal messenger transfer
transfer rna
Transfer RNA retrieves and carries amino acids from the cytoplasm to the messenger RNA located on the ribosomes.
___ RNA retrieves and carries amino acids from the cytoplasm to the messenger RNA located on the ribosomes.
transfer
Messenger RNA
Messenger RNA brings the DNA code from the nucleus to the ribosomes. This code determines the amino acid sequence for a specific protein.
___ RNA brings the DNA code from the nucleus to the ribosomes. This code determines the amino acid sequence for a specific protein.
Messanger RNA
Ribosomal RNA’s
Ribosomal RNA’s function is still not understood well.
___ RNA’s function is still not understood well.
Ribosomal RNA’s function is still not understood well.
transcription
the process of making messenger RNA
the process of making messenger RNA
transcription
what unzips a portion of DNA
RNA polymerase
RNA polymerase
what unzips a portion of DNA
what happens after the RNA forms
mRNA leaves the nucleus and goes to the ribosome
anticodon
a series of 3 tRNA
codon
a series of 3 mRNA
what does tRNA do after mRNA is formed
Transfer RNA in the cytoplasm of the cell carries specific amino acids to the messenger RNA at the ribosome.
What happens after tRNA carries amino acids to mRNA
tRNA binds to a codon on mRNA and link together to form polypeptides
What happens after tRNA and mRNA bond
tRNA releases its amino acid and leaves to search for another amino acid
