Genetics and Inheritance Worksheet

What is inheritance?

• A process where organisms eat genes

• A process where genes are mixed in a lab

• The passing of genes from parents to offspring

• The color of an animal's fur

What is a gene?

• A. A type of food

• B. A part of a cell that controls traits

• C. A type of liquid inside the body

• D. A medicine

What is an allele?

• A. A baby animal

• B. A tool used in labs

• C. A form of a gene

• D. A type of reproduction

What does it mean if an allele is dominant?

• It hides when mixed with others

• It only appears if it is alone

• It shows up even if there is only one

• It never appears

When does a recessive trait appear?

• Only when there are two dominant alleles

• Only when the child gets two recessive alleles

• When the parent is tall

• When the child eats healthy

What is incomplete dominance?

• When one trait is completely hidden

• When the offspring shows both traits separately

• When the traits blend to form a new one

• When no traits are passed on

Which is an example of incomplete dominance?

• Red flower + white flower = red flower

• Red flower + white flower = white flower

• Red flower + white flower = pink flower

• Red flower + white flower = striped flower

What is codominance?

• When traits mix into one new trait

• When neither trait appears

• When both traits appear equally and separately

• When the dominant trait hides the recessive one

Which is an example of codominance?

• A. Black cat + white cat = gray cat

• B. Black cat + white cat = black cat

• C. Black cat + white cat = cat with black and white patches

• D. Black cat + white cat = brown cat

In codominance, how do the alleles behave?

• Only one allele is visible

• The dominant allele wins

• Both alleles are expressed equally

• The alleles cancel each other