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These are the terms from the SECOND HALF of the topic only.

genetics the study of how traits are inherited
heredity passing of traits from parents to offspring
trait a characteristic that is caused by genes
allele different versions of a gene that cause the variations of a trait
dominant the form of a gene that covers up (dominates) the weaker form of the gene
recessive the form of a gene that gets covered up if the dominant form of the gene is present
Punnett square a tool to predict possible offspring’s genes based on parents’ genes (invented by Reginald Punnett 50 years after Mendel’s studies of pea plants)
gamete science name for a reproductive cell; examples are sperm and egg
zygote science name for a fertilized egg cell when it is still just a single cell
homozygous when both alleles in a pair are the same (both dominant or both recessive)
heterozygous when the two alleles in a pair are different (one is dominant and one is recessive)
genotype a pair of capital and/or lower case letters to represent an organism’s genetic makeup
phenotype the physical trait that shows up because of an organism’s genotype
probability a measurement of the chance (likelihood) of an event happening
independent when the chance of one event happening does not affect the chance of another event happening
pedigree a branching chart with symbols to show relationships of genetic traits for multiple generations of a family – also called a family tree
Created by: wholt



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