Genetics Introduction

Front

TRUE or FALSE: Gregor Mendel discovered dominant and recessive traits.

Back

True

Front

How many versions of each gene do we have?

Back

2

Front

TRUE OR FALSE: Sometimes there are many genes that determine a trait.

Back

TRUE

Front

A segment of DNA that determines a specific trait is a ...

Back

Gene

Front

How do we symbolize a dominant trait?

Back

Uppercase (capital) letter

Front

What is a gene?

Back

A gene is a segment of DNA that contains the instructions for a specific trait.

Front

What is a recessive trait?

Back

A recessive trait is a trait that is only expressed when two copies of the recessive allele are present.

Front

What is a dominant trait?

Back

A dominant trait is a trait that is expressed when at least one dominant allele is present.

Front

What are alleles?

Back

Alleles are different versions of a gene that determine specific traits.

Front

What is a phenotype?

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A phenotype is the observable physical or biochemical characteristics of an organism.