DNA and RNA Flashcard

Front

What is a codon?

Back

A codon is a three-nucleotide sequence of mRNA that codes for an amino acid.

Front

What did Erwin Chargaff conclude about the four bases of DNA?

Back

Chargaff concluded that A = T and C = G.

Front

What is the main function of tRNA?

Back

The main function of tRNA is to bring amino acids from the cytoplasm to the ribosomes.

Front

What does semiconservative DNA replication mean?

Back

Semiconservative DNA replication means that every new DNA molecule is composed of one original and one new strand of DNA.

Front

What is the complementary RNA sequence for the DNA strand GTAGTCA?

Back

The complementary RNA sequence is CAUCAGU.

Front

What are the four bases of DNA?

Back

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

Front

What is the role of mRNA in protein synthesis?

Back

mRNA carries the genetic information from DNA to the ribosomes, where proteins are synthesized.

Front

What is the structure of DNA?

Back

DNA is a double helix composed of two strands of nucleotides twisted around each other.

Front

What is the difference between DNA and RNA?

Back

DNA contains deoxyribose sugar and thymine, while RNA contains ribose sugar and uracil.

Front

What is transcription in the context of genetics?

Back

Transcription is the process of copying a segment of DNA into mRNA.