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8 terms

Genetics Terms

9th grade science PRS
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chromosome
threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
gene
A segment of DNA on a chromosome that codes for a specific trait
Allele
one of the alternative forms of a gene that governs a characteristic, such as hair color
homozygous
an organism that has two identical alleles for a trait
heterozygous
term used to refer to an organism that has two different alleles for the same trait
dominant
trait that will show up in an organism's phenotype if gene is present
recessive
The inherited characteristic often masked by the dominant characteristic and not seen in an organism.
Gregor Mendel
the father of genetics