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100
Genetics
the study of heredity and the variation of inherited characteristics.
100
segregation
separate 
100
phenotype
the physical and psychological characteristics of an organism from both genetics and environment
100
Codominance
a relationship between two versions of a gene.
100
zygote
a diploid cell resulting from the fusion of two haploid gametes; a fertilized ovum.
200
trait
a trait or character is a feature of an organism.
200
gamete
the cells used during sexual reproduction to produce a new individual organism or zygote.
200
genotype
Genotype is the collection of genes responsible for the various genetic traits of a given organism. 
200
multiple alleles
Three or more alternative forms of a gene (alleles) that can occupy the same locus.
200
offspring
offspring are the young born of living organisms, produced either by a single organism or, in the case of sexual reproduction, two organisms.
300
hybrid
a hybrid is the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction.
300
probability
theoretical probability can be used to calculate the likelihood that offspring will be a certain sex, or that offspring will inherit a certain trait or disease if all outcomes are equally possible.
300
punnett square
The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment 
300
polygenic trait
one whose phenotype is influenced by more than one gene.
300
blood type
A, B, AB, and O. Blood types are based on the presence or absence of specific antigens on red blood cells.
400
Gene
A gene is the fundamental, physical, and functional unit of heredity.
400
Homozygous
homozygous dominant, if it carries two copies of the same dominant allele, or homozygous recessive, if it carries two copies of the same recessive allele.
400
Independent
Assortment
formation of random combinations of chromosomes in meiosis 
400
Homologous
Chromosomes
a set of one maternal and one paternal chromosome that pair up with each other inside a cell during meiosis.
400
Meiosis
In biology, meiosis is the process by which one diploid eukaryotic cell divides to generate four haploid cells often called gametes.
500
Allele
An allele is one of the possible forms of a gene. Most genes have two alleles, a dominant allele and a recessive allele. 
500
Heterozygous
In diploid organisms, heterozygous refers to an individual having two different alleles for a specific trait. 
500
Incomplete Dominance
Incomplete dominance is a form of intermediate inheritance in which one allele for a specific trait is not completely expressed over its paired allele. 
500
diploid
(of a cell or nucleus) containing two complete sets of chromosomes, one from each parent.
500
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