Cats and Genetics

What is required for a baby to have red hair?

• One copy of the red-hair gene variant from one parent

• Two copies of the red-hair gene variant, one from each parent

• A special diet during pregnancy

• Exposure to sunlight after birth

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What are genes?

• A kind of chromosome

• A type of protein

• Sections of DNA that carry instructions

• Cells that determine hair color

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What determines the traits of an organism?

• The number of chromosomes

• The size of the organism

• Different versions of genes, known as alleles

• The amount of DNA in each cell

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How can environmental factors influence an organism's traits?

• None of the above

• By altering the number of chromosomes

• Through affecting how genes are expressed

• By changing the organism's genetic code

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What does 'DNA' stand for?

What results from the combination of alleles from both parents in offspring?

• A clone of one parent

• Identical twins

• No variation in traits

• A unique genetic makeup

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DNA stands for ____ acid.