Genetics and DNA

Front

Identical twins raised by different parents have different personalities. This supports environmental influence on gene expression.

Back

Environmental influence on gene expression

Front

Structures containing information for the inheritance of traits.

Back

Genes

Front

Sequence listing hereditary material from smallest to largest unit.

Back

Gene → chromosome → nucleus

Front

Instructions for an organism's traits are coded in bases in DNA in the nucleus.

Back

Bases in DNA in the nucleus

Front

Watson and Crick described DNA as a ______ ______.

Back

Double helix

Front

Basic units of DNA.

Back

Nucleotides

Front

Nitrogenous base sequence bonded to T-C-G-A-A-T.

Back

A-G-C-T-T-A

Front

A DNA nucleotide may contain deoxyribose, thymine, and a phosphate group.

Back

Deoxyribose, thymine, and a phosphate group

Front

Nitrogen bases found in DNA.

Back

A, T, G, and C

Front

DNA molecule's ladder-type structure has rungs representing a pair of nitrogenous bases.

Back

A pair of nitrogenous bases