DNA Replication

A nucleotide is the basic building block of DNA and RNA, consisting of a nitrogenous base, a sugar molecule, and a phosphate group.

DNA helicase is an enzyme that unwinds and unzips the double-stranded DNA, allowing the replication process to occur.

Histones are proteins that help package and organize DNA into structural units called nucleosomes, playing a crucial role in gene regulation.

The accepted model of DNA replication is the semi-conservative model, where each new DNA molecule consists of one original strand and one newly synthesized strand.

A nucleotide consists of a nitrogenous base (adenine, thymine, cytosine, or guanine), a deoxyribose sugar, and a phosphate group.

DNA contains deoxyribose sugar and is double-stranded, while RNA contains ribose sugar and is usually single-stranded.

DNA polymerase is an enzyme that synthesizes new DNA strands by adding nucleotides complementary to the template strand during replication.

A gene is a segment of DNA that contains the instructions for making a specific protein or set of proteins.

DNA has a double helix structure, consisting of two strands of nucleotides twisted around each other, held together by hydrogen bonds between complementary bases.

The 5' and 3' ends refer to the directionality of the DNA strands, which is crucial for the processes of replication and transcription.