Transcription and Translation

Front

What is transcription?

Back

Transcription is the process of converting DNA into messenger RNA (mRNA). It involves the synthesis of an RNA strand complementary to the DNA template.

Front

What is translation?

Back

Translation is the process of synthesizing proteins from mRNA. It occurs in the ribosome, where the mRNA sequence is read and translated into a specific sequence of amino acids.

Front

What is the role of mRNA?

Back

mRNA (messenger RNA) carries the genetic information from DNA to the ribosome, where it serves as a template for protein synthesis.

Front

What are codons?

Back

Codons are sequences of three nucleotides in mRNA that correspond to specific amino acids or stop signals during protein synthesis.

Front

What is the start codon?

Back

The start codon is AUG, which signals the beginning of translation and codes for the amino acid methionine.

Front

What is a stop codon?

Back

A stop codon is a nucleotide triplet that signals the termination of translation. Common stop codons are UAA, UAG, and UGA.

Front

What is the role of tRNA in translation?

Back

tRNA (transfer RNA) brings the appropriate amino acids to the ribosome during translation, matching its anticodon with the codon on the mRNA.

Front

What is the difference between DNA and RNA?

Back

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

Front

What is the significance of the genetic code?

Back

The genetic code is a set of rules that defines how the sequence of nucleotides in DNA and RNA is translated into the sequence of amino acids in proteins.

Front

What is the function of RNA polymerase?

Back

RNA polymerase is the enzyme responsible for synthesizing RNA from a DNA template during transcription.