RNA and Transcription

Front

What is RNA?

Back

RNA (Ribonucleic Acid) is a molecule that plays a crucial role in coding, decoding, regulation, and expression of genes.

Front

What are the four bases of RNA?

Back

The four bases of RNA are Adenine (A), Uracil (U), Cytosine (C), and Guanine (G).

Front

What is transcription?

Back

Transcription is the process by which the information in a DNA sequence is copied into a complementary RNA sequence.

Front

What is the role of mRNA?

Back

mRNA (messenger RNA) carries the genetic information from DNA to the ribosome, where proteins are synthesized.

Front

What is the start codon?

Back

The start codon is the first codon of a messenger RNA (mRNA) transcript that is translated by a ribosome. It is usually AUG.

Front

What is a promoter?

Back

A promoter is a region of DNA that initiates transcription of a particular gene.

Front

What is the difference between DNA and RNA?

Back

DNA contains the sugar deoxyribose, is double-stranded, and has thymine (T) as a base, while RNA contains ribose, is single-stranded, and has uracil (U) instead of thymine.

Front

What is tRNA?

Back

tRNA (transfer RNA) is a type of RNA that carries amino acids to the ribosome during protein synthesis.

Front

What is the function of ribosomes?

Back

Ribosomes are the cellular structures where protein synthesis occurs, translating mRNA into polypeptide chains.

Front

What is a stop codon?

Back

A stop codon is a nucleotide triplet within mRNA that signals the end of translation.