Flashcards in Genetics & Inheritance Test Deck (13):
The study of Heredity, which is the passing of Physical Characteristics from parents to offspring through in the form of genes.
The process by which genetic information is passed from parents to offspring. The offspring carry a unique set of genes, half from their father and half from their mother.
A combination of 2 different alleles. This is known as a hybrid, and is made up of a recessive allele and a dominant allele.
Two identical alleles, either both recessive or both dominant.
The genetic makeup and combination of alleles, which determines the physical characteristics of an organism.
All observable characteristics of an organism.
Define: Dominant Inheritance
Inheritance in which only 1 allele is needed for the offspring to display the characteristic. The dominant allele will mask any recessive allele.
Define: Recessive Inheritance
Inheritance in which both parents must carry the recessive allele in order for the offspring to display the characteristic. 2 recessive alleles are required.
Define: Co-Dominant Inheritance
A cross between 2 different phenotypes producing an offspring with a 3rd phenotype in which both parental traits appear.
Red Flower + White Flower = Red and White spotted Flower
Define: incomplete inheritance
A cross between organisms with 2 different phenotypes produces an offspring with a 3rd phenotype that is a blending of the parental traits.
Red Flower + White Flower = Pink Flower
Define: Sex-linked Inheritance
Allele is located on the 'X' chromosome.
Alternative forms of genes.