Unit 4-. The different forms of a gene An allele whose trait always shows up in the organism…
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GENETICS Unit 4-
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An allele whose trait always shows up in the organism when the allele is present.
Transcript of Unit 4-. The different forms of a gene An allele whose trait always shows up in the organism…
HYBRID
An organism that has two different alleles for a trait; an organism that is heterozygous for a particular trait.
PUNNETT SQUARE
A chart that shows all the possible combinations of alleles that can result from a genetic cross.
RECESSIVE ALLELE
An allele that is masked when a dominant allele is present.
Recessive traits are only visible if an individual inherits two copies of the recessive allele