Genetics

Which of these is NOT an instinctive behavior?

• a bird building a nest

• a turtle burying its eggs

• a baby crying when they are hungry

• a farmer teaching a horse to pull a plow

Which of these are characteristics of inherited traits?

• being able to speak in front of a crowd

• having green eyes and brown hair

• mastering your multiplication facts

• becoming a teacher

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Which of the following describes a learned behavior in a dog?

• black fur

• running fast

• four legs

• fetching sticks

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A person who breeds animals keeps careful records of the fur color of parents and offspring from each generation. The fur color is a trait transferred from generation to generation.

What are the structures that carry the information for these traits called?

• organelles

• genes

• muscles

• cytoplasm

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What is the chemical called that is found inside our cell's nucleus and determines our inherited traits?

• D.N.A.

• genes

• chromosomes

• chloroplast

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Every organism has traits that make it ________________.

• the same

• an animal

• unique

• learned

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A characteristic passed from parents to their offspring is called a __________________ trait.

• acquired

• inherited

• dominant

• recessive

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Which of the following is an example of an inherited trait?

• liking pizza

• riding a bike

• blowing bubbles with your gum

• freckles

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Which behavior is an instinct?

• a dog begging for food at the dinner table

• a chimpanzee using sign language

• a cat using a litter box

• a male grasshopper rubbing its legs together to attract a female

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Frogs live in many parts of the world. Some have webbed feet; others have separated toes. The difference in the frog's feet is an example of:

• an instinct

• an inherited trait

• a learned behavior

• a migration

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