Get ahead with a $300 test prep scholarship
| Enter to win by Tuesday 9/24
Terms in this set (31)
The genes that control each trait.
When someone has one allele for a disorder or disease, but the person doesn't have that illness.
Two alleles that don't overshadow each other and are expressed equally in a phenotype.*
A trait that dominates over another trait and appears in the F1 generation. (Represented by a capital letter)
The fusion of a male and female gamete to form a zygote.
The study of heredity.
The combination of alleles for a given trait.
The process of parents passing traits to offspring.
The two alleles for a given trait are different. (aka a hybrid)
Chromosomes have the same genes as each other in the same sequence but do not necessarily have the same allele of those genes
The 2 alleles for a given trait are the same.
When neither allele is dominant, but there is a blending effect.
Allele pairs separate independently while forming gametes.
The number and visual appearance of the chromosomes in the cell nuclei of an organism or species.
An allele of a genetic locus having more than two allelic forms within a population.*
When many genes control one trait.
A chart that shows the spread of a disease of many generations of people.
The physical appearance of a trait determined by a genotype.
The transfer of pollen from the anthers of a flower to the stigma of the same or another flower. This allows fertilization in the flower, allowing it to develop seeds.
A trait that is hidden by the F1 generation. (Represented by a lowercase letter)
Chromosomes that determine the sex of the organism.
Traits that are determined by the sex of the organism.
A feature of an organism that is shown by the phenotype.
A diploid cell resulting in the fusion of two haploid gametes.
Sickle Cell Anemia
A disease where blood cells are sickle shaped, causing blood clots and heart problems in patients.
A disease where mucus clogs the lungs leading to chronic respiratory infections.
A disease where a person lacks the enzyme that breaks down phenylalanine causing mental retardation.
A rare dominant disorder of the nervous system.
When neither allele is dominant, causing both trait to be expressed in the phenotype of a hetertozygote.