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Ch 4 Sec 1,2,3,4


The passing of traits from parents to offspring heredity
A characteristic that an organism can pass on to its offspring through its genes trait
The scientific study of heredity genetics
The joining of a sperm and an egg fertilization
The offspring of many generations that have the same traits purebred
The set of information that controls a trait gene
The different forms of a gene alleles
An allele whose trait always shows up in the organism when the allele is present dominant allele
An allele that is masked when a dominant allele is present recessive allele
An organism that has two different alleles for a trait hybrid
A number that describes how likely it is that an event will occur probobility
A chart that shows all possible combinations of alleles that can result from a genetic cross Punnett square
An organisms physical appearence or visible traits phenotype
An organisms genetic makeup, or allele combinations genotype
Having two of the same alleles for a trait homozygous
having two different alleles for a trait heterozygous
A condition in which neither of two alleles of a gene are dominant or recessive codominance
The process by which the number of chromosomes is reduced by half to form sex cells meiosis
Takes the code from the nucleus to the ribosome in the cytoplasm messenger RNA
The RNA that encodes the code of the messenger RNA to make the proteins transfer RNA
Any change in a gene or trait mutation
Created by: Student@rsms