Genetics and Inheritance Worksheet

Which branch of biology studies heredity or the inheritance patterns in organisms?

• Ecology

• Genetics

• Anatomy

• Botany

A student is able to cross their eyes and also has a scar on their leg. Which statement best explains the difference between these two traits?

• Both are inherited traits.

• Both are acquired traits.

• Crossing eyes is inherited, while a scar is acquired.

• Crossing eyes is acquired, while a scar is inherited.

Which of the following is an example of an allele?

• The number of chromosomes in a cell

• Human hair color coming in black, brown, blonde, red, and a variety of other natural colors

• The shape of a chromosome

• The process of cell division

How many alleles do you have for every gene?

• At least 2

• Only 1

• At least 3

• None

Which of the following represents a recessive allele?

• A lowercase letter

• A CAPITAL letter

• A number

• A symbol

Which of the following is an example of a dominant allele?

• b

• g

• B

• h

If a person has the genotype ff for the freckle gene, what does this mean?

• They have freckles and are heterozygous.

• They do not have freckles and are homozygous recessive.

• They have freckles and are homozygous dominant.

• They do not have freckles and are heterozygous.

Why does someone with a Bb genotype have brown eyes?

• Because B is dominant in the genotype Bb, and brown eyes are the dominant allele

• Because b is dominant in the genotype Bb, and blue eyes are the dominant allele

• Because both alleles are recessive

• Because Bb always results in blue eyes

What is the main focus of genetics?

• The study of the inheritance of traits

• The study of animal behavior

• The study of plant growth

• The study of weather patterns