Unit 5 Retest - DNA & Cell Cycle

the process of making identical copies of DNA before cell division

An enzyme that unwinds the double helix of DNA and separates the DNA strands in preparation for DNA replication.

Enzyme involved in DNA replication that joins individual nucleotides to produce a DNA molecule

enzyme which connects the individual okazaki fragments on the lagging strand by forming covalent bonds

The form of DNA, referring to its two strands wound into a spiral shape.

A molecule that consists of nucleotide monomers used for transmitting genetic information from one generation to the next

A subunit of nucleic acids formed from a simple sugar, a phosphate group, and a nitrogenous base.

A nitrogen base found in DNA and RNA. It pairs with thymine in DNA and with uracil in RNA

A nitrogen base found in both DNA and RNA; pairs only with cytosine.

A nucleotide that pairs with adenine. Found only in DNA.

A nitrogenous base found in DNA and RNA; pairs with guanine

A weak chemical bond used to hold complementary base pairs together

Any of the pairs formed between complementary bases in the two nucleotide chains of DNA, such as A-T and C-G (DNA); A-U and C-G (RNA)

body cells (liver cells, heart cells)

A process that takes place in the nucleus of a dividing cell, involves a series of steps, and results in the formation of two new nuclei each having the same number of chromosomes as the parent nucleus.