DNA and Protein Formation

Front

Definition of a gene.

Back

A gene is a section of a DNA molecule.

Front

Role of genes in protein formation.

Back

Genes specify the sequence of amino acids in a particular protein.

Front

Result of protein activity.

Back

The activity of the protein results in the phenotype.

Front

Adenine (A) and Guanine (G) are classified as _____.

Back

Purines

Front

Cytosine (C) and Thymine (T) are classified as _________.

Back

Pyrimidines

Front

Nucleotide structure

Back

phosphate group, sugar (deoxyribose), and nitrogenous base

Front

Nucleotides are joined into chains.

Back

Phosphodiester bonds form between the deoxyribose sugars and the phosphates, creating a continuous sugar-phosphate backbone.

Front

Antiparallelism

Back

The opposing orientation (head-to-toe) of polynucleotide chains is called antiparallelism.

Front

DNA is directional

Back

One strand of the DNA double helix runs in a 5’ to 3’ direction, and the other strand runs in a 3’ to 5’ direction.

Front

Complementary base pairs

Back

Adenine goes with thymine, guanine goes with cytosine