Mendel Flashcards
(17 cards)
1
Q
quantitative or qualitative?
A
quantitative
2
Q
Biology during 1857-66 was?
A
qualitative
3
Q
why did he use peas?
A
lots of offspring
cheap
low maintenance
simple phenotypes
4
Q
how many phenotypes?
A
14 pure breeding lines
5
Q
monohybrid
A
1 trait
6
Q
blending theory
A
genetic determinant fluid
must be a particle
7
Q
Mendel’s principle of allelic segregation
A
- Controlled by 1 gene
- each gene has 2 copies in each cell
- each parents gives 1 of 2 copies, biparental
8
Q
Dihybrid crosses
A
2 traits
9
Q
Prior explanations
A
blending fluid
homunculus
pangenesis
environmental influences
10
Q
homunculus
A
small person in sperm cell
11
Q
Hubris
A
fatal flaw
12
Q
reasons for success
A
controlled
data sets
binary traits (7 physical characters)
quantitative
13
Q
experimental analysis
A
simplify with diagrams
visualize - mental image
14
Q
Mono ratio
A
3:1 or 1:1
15
Q
codominance ratio
A
1:2:1
16
Q
lethal alleles ratio
A
2:1 phenotype
17
Q
epistasis
A
9:3:3:1
