Molecular Genetics Ch. 1-8

What term describes all of the DNA found in all organism's chromosomes?

genome

A large molecule that is composed of repeating units of smaller building blocks is called a(n)

macromolecule

The building blocks of DNA are called

nucleotides

In a eukaryotic cell, the chromosomes are contained in the

cell nucleus

The complete set of proteins that a cell makes at a given time is called its

proteome

An enzyme is a protein that

accelerates a chemical reaction

The abbreviation for deoxyribonucleic acid is

DNA

What are the subunits of DNA?

nucleotides

What are the four nitrogen-containing bases found in the nucleotides that make up DNA?

Adenine, Thymine, Guanine, and Cytosine (TAGC)

In a DNA molecule, information is contained in the sequence of

nitrogenous bases

The genetic code directs the order of _ within a polypeptide based on the sequence of nucleotides within a DNA molecule

amino acids

In living cells, DNA is found in large structures called _, which are contained in the nucleus of the eukaryotic cell.

chromosomes

The process of using a gene sequence to affect the characteristics of cells and organisms is called gene _

expression

When a structural gene is expressed, its DNA sequence is _ into RNA, which is then _ to produce a polypeptide.

transcribed, translated

During transcription, the DNA sequence of a gene is copied into a sequence of _.

RNA

When a protein-encoding gene is transcribed, the RNA molecule that is produced is referred to as ___ RNA. (mRNA)

messenger

What is translation?

the synthesis of a polypeptide based on the sequence of mRNA.

What is a genetic cross?

The breeding of two individuals and the analysis of their offspring

What area of genetics focuses on the biochemical understanding of DNA and gene expression?

molecular genetics

The study of mutant genes with abnormal function in order to better understand the function of a normal gene is referred to as a(n) ____ approach.

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