RNA Flashcards
What is the structure of RNA?
RNA is a single-stranded molecule with ribose sugar
What are the nitrogenous bases in RNA?
Adenine (A), Uracil (U), Guanine (G), and Cytosine (C).
What are the three types of RNA?
Messenger RNA (mRNA), Ribosomal RNA (rRNA), and Transfer RNA (tRNA).
What does messenger RNA (mRNA) do?
It carries the code for protein synthesis from DNA to the ribosome.
What does ribosomal RNA (rRNA) do?
It helps form ribosomes, the site of protein synthesis.
What does transfer RNA (tRNA) do?
It brings amino acids to the ribosome to form proteins.
Where is RNA found in a cell?
RNA is found in the nucleus, ribosomes, and cytoplasm.
What sugar does DNA contain?
Deoxyribose.
What sugar does RNA contain?
Ribose
How many strands does DNA have?
2 double helix
How many strands does RNA have?
1 single stranded
What nitrogenous base is found in RNA but not in DNA?
Uracil (U) replaces Thymine (T).
What is DNA replication?
The process of making an identical copy of DNA.
When does DNA replication happen?
During interphase of the cell cycle.
What are the main steps of DNA replication?
DNA unwinds.
Hydrogen bonds break, and strands separate.
Each strand serves as a template.
Free nucleotides pair with complementary bases.
Two identical DNA molecules are formed.
