DNA and Protein Synthesis Review

Front

What are the components of DNA?

Back

DNA is composed of nucleotides, which include a phosphate group, a sugar (deoxyribose), and nitrogenous bases (adenine, thymine, cytosine, guanine).

Front

What is the role of RNA in protein synthesis?

Back

RNA serves as a messenger between DNA and ribosomes, where proteins are synthesized. It carries the genetic information from the DNA to the ribosomes.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains thymine, while RNA is single-stranded and contains uracil instead of thymine.

Front

What is a codon?

Back

A codon is a sequence of three nucleotides in mRNA that corresponds to a specific amino acid or stop signal during protein synthesis.

Front

What is transcription in the context of protein synthesis?

Back

Transcription is the process of copying a segment of DNA into mRNA, which then carries the genetic information to the ribosome.

Front

What is translation in protein synthesis?

Back

Translation is the process where ribosomes read the mRNA sequence and synthesize a corresponding polypeptide chain (protein) by linking amino acids together.

Front

What is genetic engineering?

Back

Genetic engineering is the manipulation or addition of genes to alter the genetic makeup of an organism.

Front

What is a triplet code?

Back

A triplet code refers to the three-nucleotide sequence in DNA or RNA that codes for a specific amino acid.

Front

What is the significance of the sugar in nucleotides?

Back

The sugar in nucleotides (deoxyribose in DNA and ribose in RNA) forms the backbone of the nucleic acid structure.

Front

What are the four nitrogenous bases in DNA?

Back

The four nitrogenous bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).