Basics of Genetics Quiz

What are genes?

• The physical traits of an organism

• The basic units of heredity that carry information

• The environment where an organism lives

• The food an organism eats

What is an allele?

• A type of cell

• A version of a gene

• A chromosome

• A protein

Who is known as the father of genetics?

• Charles Darwin

• Gregor Mendel

• Albert Einstein

• Isaac Newton

What is genetic variation?

• Differences in DNA sequences among individuals

• The process of cell division

• The process of photosynthesis

• The process of digestion

What are chromosomes?

• X-shaped structures made up of DNA

• The outer layer of a cell

• The energy producers of a cell

• The waste products of a cell

What is a trait?

• A characteristic that can be passed from parent to offspring

• A type of food

• A type of habitat

• A type of cell

What is a Punnett Square used for?

• To predict the probability of certain traits in offspring

• To measure the size of cells

• To calculate the speed of an animal

• To determine the age of a fossil

In a Punnett Square, what does a capital letter represent?

• A recessive allele

• A dominant allele

• A chromosome

• A gene

If a pea plant has one allele for tall stems (T) and one for short stems (t), what is its genotype?

• TT

• Tt

• tt

• T

What is the phenotype of a plant with the genotype Tt if T is tall and t is short?

• Tall

• Short

• Medium

• Cannot be determined