Genes and Traits review

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Presentation transcript:

Genes and Traits review

A physical characteristic of a living thing is a ______________?

Answer: Trait

A _________ trait is a trait that is passed from a parent its offspring.

Answer: inherited

The passing of traits from one generation to another is called ____________.

Answer: Heredity

A rod shaped structure in the nucleus that holds DNA is called a ___________________.

Answer: Chromosome

How many pairs of chromosomes do humans have?

Answer: 23

1. A ___________ gene is a stronger gene that appears more often. 2. A ___________ gene is a weaker gene that appears less often.

Answer: 1. Dominant 2. Recessive

These are chemical modules in the chromosomes that determine heredity traits.

Answer: DNA

Babies of parents are called ________________.

Answer: Offspring

This is the way an animal acts.

Answer: Behavior

A _______________ behavior is a behavior that is inherited.

Answer: Instinct