CH 9 Patterns of Inheritance Flashcards
1
Q
heredity
A
the transmission of traits from one generation to the next
2
Q
genetics
A
the scientific study of heredity
3
Q
Gregor mendel
A
- worked in the 1860’s
- was the first person to analyze patterns of inheritance
- deduced the fundamental principles of genetics
4
Q
Mendel studied garde peas because
A
- easy to grow
- came in many readily distinguishable varieties
- easily manipulated
- can self-fertilize
5
Q
character
A
a heritable feature that varies among individuals
6
Q
trait
A
a variant of a character
7
Q
Mendel
A
- created purebred varieties of plants and
- crossed two different purebred varieties
8
Q
hybrids
A
offspring of two different purebred varieties
9
Q
P generation
A
the parental plants
10
Q
F1 generation
A
the parents hybrid offspring
11
Q
F2 generation
A
a cross of the F1 plants
12
Q
Mendel’s four hypothesis
A
- the alternative versions of genes are called alleles
- for each inherited character, an organism inherits two alleles, one from each parents
- if two alleles of an inherited pair differ, one detrained the dominant all era done the recessive allele
- gametes carry only one allele for each inherited character
13
Q
punnett square highlights
A
- the four possible combinations of games
- the four possible offspring in the F2 generation
14
Q
phenotype
A
an organisms physical appearance
15
Q
genotype
A
an organisms genetic makeup
