Science: Chapter 5 Vocablary

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Heredity
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Terms in this set (15)
Heredity
Passing of traits from parents to offspring
alleles
The different forms of a trait that a gene may have
genetics
the study of how traits are inherited through the actions of alleles
hybrid
organism that received different genetic information or alleles, for a trait from each parent
dominant
a factor that covers recessive factors
recessive
a factor when two must be present to be visible; overpowered by dominant factors
punnet square
contains letters that represent dominant and recessive traits and is used to predict the traits of an offspring
genotype
the genetic makeup of an organism
phenotype
An organism's physical appearance, or visible traits.
homozygous
An organism that has two identical alleles for a trait
heterozygousAn organism that has two different alleles for a traitincomplete dominancewhen the offspring's phenotype is a combination of the parents' phenotypes because the dominant factor did not completely cover up the recessive factorpolygenic inheritancewhen a group of gene pairs act together to produce a traitsex-linked genean allele inherited on a sex chromosomegenetic engineeringthe science of changing the arrangement of DNA that makes up a gene