Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
17 Cards in this Set
- Front
- Back
|
Selective breeding |
Process of choosing and breeding specific organisms for particular physical features or behaviours |
|
|
True breeding |
Organisms that are homozygous for a particular trait or set of traits and produce offspring that exhibit the same characteristics generation after generation |
|
|
Mono hybrid cross |
Cross of two individuals that differ in one trait |
|
|
Law of segregation |
Mendels first law of inheritance, stating that all individuals have 2 copies of each gene. These copies separate randomly during gamete formation and each gamete receives one copy of every gene |
|
|
Dihybrid cross |
Cross of two individuals that differ in 2 traits |
|
|
Law of independent assortment |
Mendels 2nd law of inheritance, stating that the two alleles for one gene segregate independently of the alleles for other genes during gamete formation |
|
|
Chromosome theory of inheritance |
Theory proposed by Walter Sutton that genes are carried on chromosomes |
|
|
Linked genes |
Genes found on the same chromosome |
|
|
Recombinant types |
Describes an offspring that have a different combination of alleles than the chromosomes of their parents |
|
|
Parental type |
Describes offspring with chromosomes that are identical to the parent |
|
|
Sex linked traits |
Trait controlled by genes on either the X or Y chromosome |
|
|
Barr body |
Structure formed when the inactive X chromosome condenses tightly |
|
|
Multiple Alleles |
Pattern inheritance in which a gene has more then two alleles for any given trait |
|
|
Order of dominance |
Sequence indicating which alleles are dominant to other alleles |
|
|
Polygenic trait |
Trait is controlled by many genes |
|
|
Pedigree |
Diagram that uses symbols to illustrate the patterns of relationships and traits among a family over many generations |
|
|
Genetic screening |
Any of several methods of identifying people who are at risk of developing specific genetic conditions or of passing these conditions to their children |
