A small section of DNA on a chromosome is known as a _________________.

A change in a gene or chromosome is known as a ________________.

What is the study of how traits are passed from parents to offspring?

Physical characteristics of an organism are __________.

The passing of traits from parents to offspring is called ________________.

Heredity material passes from parent to offspring during

___________________ can be beneficial, harmful or neutral.

How many recessive alleles must be present for a trait to be expressed?

The word mutate means?

Human chromosomes are arranged in

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