Abbey Garden: the beginning

1
Abbey Garden the beginning
2
Flower Color in Peas
3
Monohybrid Cross
4
Mendels Results
5
Alleles - alternative forms of a gene
6
Law of Segregation
7
A Test Cross
8
Incomplete Dominance in Carnations
9
Incomplete Dominance
10
Co-DominanceRoan Cattle
11
CLASS ACTIVITY

• If a pink snapdragon is crossed with a white
  snapdragon, what proportion of the progeny will
  be white?

12
CLASS ACTIVITY

• A cattle breeder wanted a line of pure
  breeding roan cattle. Would it be possible to
  have such a line? Why or why not?

13
Dihybrid Cross
14
CLASS ACTIVITY

• If AabbCcddEe is mated with AaBbCcDdee,
• what proportion of the offspring will be
• aabbccddee?

15
Sex Determination
16
Turners SyndromeX0
17
Klinefelters SyndromeXXY
18
XYY Karyotype
19
Nondisjunction
Error in meiosis in which chromosomes fail to
segregate properly into daughter cells
0
0
0
0
0
0
X
20
Sex Linkage in Fruit flies
21
Sex Linkage-Father with the Disorder
22
Sex Linkage-Mother a Carrier
23
Sex Linkage Carrier mates with a Male who has the
Disorder
24
CLASS ACTIVITY

• If a woman whose father had hemophilia,
  marries a man without the disease, what
  proportion of their sons will have hemophilia?

25
X-Inactivation
XBXBorange
XBXBblack
XBXBtortoiseshell
26
Oh Why oh Why
27
CLASS ACTIVITY Whats on the Y Chromosome?
28
Y-linked Trait
29
Sex-Influenced Trait - Male-Patterned Baldness
(?)
30
CLASS ACTIVITY

• If a woman who has normal hair but whose
  mother is bald, marries a man with normal hair,
  what proportion of their sons will be bald?

31
Multiple Alleles
32
CLASS ACTIVITY

• A man who has blood type B and whose father
  has blood type O, marries a woman who is blood
  type AB. What proportion of their children will
  be blood type A?

33
Epistasis
34
CLASS ACTIVITY

• Assume congenital deafness is caused by the
  epistatic interaction between the D and E locus.
  An individual needs one dominant allele at each
  locus to hear (D_E_). Is it possible for two
  individuals that are deaf to produce all normal
  offspring that can hear? If so, what are the
  genotypes of the parents?

35
Pleiotropy
36
Autosomal Linkage
37
Parental vs. Cross Over Types
38
Production of Recombinant Gametes
39
Recombination due to Crossing Over
40
CLASS ACTIVITY

• The following results were produced in a test
  cross of AaBb X aabb
• AaBb 12
• aaBb 80
• Aabb 70
• aabb 13
• 1. Draw the chromosomes of the AaBb individual
  indicating the position of the genes.
• 2. Determine the map distance between A locus
  and B locus.

41
Quantitative Traits
42
CLASS ACTIVITY

• What proportion of the offspring in a cross
  between to R1R1r2r2(medium red) and R1r1
  R2r2(medium red) will be light red?