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;
19 Cards in this Set
- Front
- Back
|
Genetics |
The study of heredity and variation. |
|
|
Heredity |
The passing of traits from parents to offspring. |
|
|
Variation |
Offspring exhibits individuality, differing somewhat in appearance from its parents and siblings. |
|
|
Hugo De Vries, Carl Erich Correns, Erich Tschermak von Seysenegg |
3 scientists who rediscovered the work of Mendel |
|
|
Gregor Johann Mendel |
Father of genetics and an Austrian monk. |
|
|
Genotypes |
The genetic make up of an organism. |
|
|
Homozygous |
Having identical genes (one from each parent) for a particual characteristics. |
|
|
Dominant Trait |
The allele of a gene that masks or suppresses the expression of an alternate allele, appears in heterozygous condition. |
|
|
Recessive Trait |
An allele that is masked by a dominant allele and only appears in homozygous condition. |
|
|
Heterozygous |
A hybrid or two different genes for a particular characteristic. |
|
|
Phenotype |
Physical characteristics of an individual. |
|
|
Law of Dominance, Law of Segregation, Law of Independent Assortment |
3 laws in Mendel's Law of Inheritance |
|
|
Law of Dominance |
This states that one factor (gene) in a pair of alleles may prevent the other factor from being expressed. |
|
|
Law of Segregation |
Allele pairs separate during gamete formation and randomly form during fertilization |
|
|
Law of Independent Assortment |
Genes for different traits can segregate independently during the formation of sex cells. |
|
|
Punnett Square |
A square diagram used to predict the outcome of a breeding experiment. |
|
|
Reginald C. Punnett |
The punnett square is named after this person. |
|
|
Test Cross |
First introduced by Gregor Mendel, using the traits of both parents. |
|
|
Monohybrid Cross |
A genetic cross involving a single pair of genes, parents differ by a single trait. |
