NUCLEIC ACIDS Flashcards
found in nucleus and are acidic in nature
Nucleic Acids
building block if nucleic acid
nucleotides
- Found within cell nucleus
- Storage and transfer of genetic information
- Passed from one cell to other during cell division
Deoxyribonucleic Acid
- Occurs in all parts of cell
- Primary function is to synthesize the proteins
Ribonucleic Acid
- ribose
- uracil
- single stranded
- molecules are smaller
- -OH group is present
RNA
- deoxyribose
- thymine
- double stranded/
helix - 75-thousand nucleotide (higher molecules)
- -H group is present
DNA
the sequence of bases on one polynucleotide is complementary to the
other polynucleotide
DNA Sequence
Process by which DNA molecules produce exact duplicates of themselves
Replication
enzyme that can only function in the 5’-to-3’ direction
DNA polymerase
A process by which DNA directs the synthesis of mRNA
molecules
Transcription
a process in which mRNA is deciphered to synthesize a protein molecule
Translation
Formed directly by DNA transcription.
Heterogeneous nuclear RNA (hnRNA)
Carries instructions for protein synthesis (genetic information) from DNA
Messenger RNA
Facilitates the conversion of hnRNA to mRNA.
Small nuclear RNA
Combines with specific proteins to form ribosomes - the physical site for protein synthesis
Ribosomal RNA (rRNA)