Top Secret Summary on DNA Replication Pt. 1: Structure and Base Pairing

These flashcards cover key concepts related to DNA structure, base pairing rules, and the replication process.

DNA Structure

Composed of two complimentary strands that run antiparallel to each other.

Antiparallel Strands

Strands in DNA run in opposite directions, one from 5' to 3' and the other from 3' to 5'.

Base Pairing Rules

The rules governing how nucleotides pair in DNA: Adenine pairs with Thymine, Cytosine pairs with Guanine.

Adenine (A)

A nucleotide that pairs with Thymine (T) in DNA and with Uracil (U) in RNA.

Thymine (T)

A nucleotide that pairs with Adenine (A) in DNA.

Cytosine (C)

A nucleotide that pairs with Guanine (G) in both DNA and RNA.

Guanine (G)

A nucleotide that pairs with Cytosine (C) in both DNA and RNA.

S Phase of Interphase

The phase in the cell cycle where DNA replication occurs, producing sister chromatids.

Sister Chromatids

Identical copies of a chromosome joined at the centromere, resulting from DNA replication.

Complimentary Strand Writing Steps

1) Write out the complimentary strand using base pairing rules, 2) Check directionality of answer choices.