Chapter 10: Genetics and Heredity Quiz

What is the primary focus of genetics as a scientific study?

• The study of chemical reactions

• The study of animal behavior

• The study of plant growth

• The study of heredity

Which molecule is known as the hereditary material that controls cell activities?

• DNA

• Carbohydrate

• Protein

• RNA

What is an allele?

• A form of a gene

• A segment of DNA

• A type of cell

• A protein

Which trait is expressed when at least one dominant allele is present?

• Hidden trait

• Neutral trait

• Dominant trait

• Recessive trait

How is phenotype best described?

• The behavioral pattern of an organism

• The cellular structure of an organism

• The physical appearance of an organism

• The genetic makeup of an organism