Chromosomes, DNA, and Genes

Front

What is the main function of chromosomes?

Back

Chromosomes carry genetic information in the form of genes and are responsible for the inheritance of traits.

Front

What are the building blocks of DNA?

Back

Nucleotides, which consist of a sugar, a phosphate group, and a nitrogen base.

Front

What are the four nitrogen bases found in DNA?

Back

Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).

Front

What nitrogen base is found in RNA instead of Thymine?

Back

Uracil (U).

Front

What is the shape of DNA?

Back

Double Helix.

Front

What is an allele?

Back

An allele is a variant form of a gene that can result in different traits.

Front

What is a dominant allele?

Back

A dominant allele is one that expresses its trait even when only one copy is present.

Front

What is a recessive allele?

Back

A recessive allele only expresses its trait when two copies are present.

Front

What is the study of heredity called?

Back

Genetics.

Front

What is the complementary base pair for Adenine in DNA?

Back

Thymine.