-
scientific study of heredity
genetics
-
process in sexual reproduction in which male and femaale reproductive cells join to form a new cell
fertilization
-
term used to describe oranisms that produce offspring identical to themselves if allowed to self-polinate
True-Breeding
-
specific characteristics that varies from one individual to another
trait
-
offspring of crosses between parents with different traits
hybrid
-
sequence of DNA that codes for a protein and thus determines
gene
-
alternative form that a single gene may have for a particular trait
allele
-
a haploid sex cell, formed during meiois, that can combine with another haploid sex cell and produce a diploid fertolized egg
gamete
-
likelihood that a(n) event/result will occur
probability
-
organism with two of the same alleles for a specific trait
homozygous
-
organism with twon different alleles for a specific trait
heterozygous
-
observable characteristic that is expressed as a result of an allele pair.
phenotype
-
an organism's allele pairs
genotype
-
genes for different traits can segregate independently during the formation of gametes
independent assortment
-
complex in heritance pattern in which the heterozygous phenotype is intermediate between those of the 2 homozygous parent organisms
incomplete dominance
-
complex inheritance pattern that occurs when neither allele is dominant and both alleles are expressed
codominance
-
having more than two alleles for a specific trait
multiple alleles
-
characteristics, such as eye color or skin color, that results from the interaction of multiple gene pairs
polygenic traits
-
one of two paired chromosomes, one from each parent, that carries genes for a specific trait at the same location
homologous
-
having 2 copies of each chromosome
diploid
-
cell with half the number of chromosomes as a diploid cell
haploid
-
reduction division process, occuring only in reproductive cells, in which one diploid cell produces 4 haploid cells that are not genetically identical
meiosis
-
exchange of chromosal segments between a pair of homologous chromosomes during prophase I of meiosis
crossing over
|
|