Genetics Vocab Bell Ringer

Front

What is a Punnett square used for in genetics?

Back

Predicting the traits of offspring.

Front

The genotype is ____ while the phenotype is the _____.

Back

set of alleles (letters), physical trait expressed.

Front

What is a gene?

Back

A segment of DNA that codes for a specific trait.

Front

What is an allele?

Back

Different forms of a gene that can exist at a specific locus.

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene.

Front

What does heterozygous mean?

Back

Having two different alleles for a particular gene.

Front

What is a dominant allele?

Back

An allele that expresses its trait even in the presence of a recessive allele.

Front

What is a recessive allele?

Back

An allele that only expresses its trait when two copies are present.

Front

What is a phenotype?

Back

The observable physical or biochemical characteristics of an organism.

Front

What is a genotype?

Back

The genetic constitution of an individual, represented by alleles.