Protein Synthesis Flashcards
Difference between DNA and RNA
DNA contains the sugar deoxyribose. DNA is double stranded. DNA is responsible for storing and transferring genetic information. Thymine
RNA contains the ribose sugar. RNA is single stranded. RNA directly codes for amino acids and as acts as a messenger between DNA and ribosomes to make proteins. Uracil
Steps of protein synthesis
Step 1 Copy of one side of DNA strand is made (called mRNA, messenger RNA)
Step 2 mRNA moves to cytoplasm, then ribosome
Step 3 mRNA goes through ribosome 3 bases at a time
Step 4 transfer RNA (tRNA) matches up with the open DNA bases
Step 5 tRNA releases the amino acid at the top, which joins the chain of amino acids being produced
Messenger RNA
the form of RNA in which genetic information transcribed from DNA as a sequence of bases is transferred to a ribosome.
Transfer RNA
RNA consisting of folded molecules that transport amino acids from the cytoplasm of a cell to a ribosome.
Transcription
transcription occurs in the nucleus
Translation
translation occurs in the cytoplasm