DNA, RNA and Protein Synthesis

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What is DNA?

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DNA (Deoxyribonucleic Acid) is the molecule that carries the genetic instructions for life. It is composed of two strands that coil around each other to form a double helix.

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What is RNA?

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RNA (Ribonucleic Acid) is a single-stranded molecule that plays a crucial role in the synthesis of proteins. It is involved in translating the genetic information from DNA into proteins.

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What is protein synthesis?

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Protein synthesis is the process by which cells generate new proteins. It involves two main steps: transcription (copying DNA to mRNA) and translation (reading mRNA to assemble amino acids into proteins).

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What is a mutation?

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A mutation is a change in the DNA sequence that can lead to changes in the structure and function of proteins. Mutations can be caused by errors during DNA replication or external factors.

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What is a frameshift mutation?

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A frameshift mutation occurs when nucleotides are inserted or deleted from the DNA sequence, causing a shift in the reading frame of the genetic code.

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What is helicase?

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Helicase is an enzyme that unwinds and separates the two strands of DNA during replication, allowing each strand to be copied.

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What is DNA polymerase?

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DNA polymerase is an enzyme that synthesizes new DNA strands by adding nucleotides to a growing chain and also proofreads the newly synthesized DNA.

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What happens during interphase?

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During interphase, the cell prepares for division by replicating its DNA, increasing its size, and producing the necessary proteins and organelles.

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What is an anti-codon?

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An anti-codon is a sequence of three nucleotides on tRNA that pairs with a complementary codon on mRNA during protein synthesis.

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What is transcription?

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