What is required for a baby to have red hair?

• Exposure to sunlight after birth

• A special diet during pregnancy

• Two copies of the red-hair gene variant

• One copy of the red-hair gene variant

Can two non-redheaded parents have a redhead baby?

• Yes, but only if they eat lots of carrots

• Only if they use special shampoo

• No, it's completely impossible

• Yes, if they both carry the gene variant

What is the role of alleles in genetics?

• They are a type of protein

• They are different versions of a gene that determine traits

• They are used to carry instructions along chromosomes

• They determine the color of the textbook

What does a genotype represent?

• A type of gene therapy

• The collection of an organism's alleles

• An organism's observable traits

• A scientific instrument

How are most traits determined?

• By the phase of the moon

• By the organism's diet

• By more than one gene

• By a single gene

What can affect an organism's traits besides genes?

• The weather

• The organism's hobbies

• The organism's name

• Environmental factors

What is a Punnett square used for?

• Predicting the weather

• Mapping out the probability of inheriting different alleles

• Calculating the speed of light

• Designing a garden layout

What is an example of codominance?

• A plant that grows only in winter

• A bird that can sing two notes at once

• A dog with a loud bark

• A cat with both orange and black fur