Diploid Number (2n) of Chromosomes for Common Domestic Animals Flashcards
1
Q
Turkey
A
82
2
Q
Ducks
A
80
3
Q
Chicken
A
78
4
Q
Dog
A
78
5
Q
Camel
A
74
6
Q
Horse
A
64
7
Q
Donkey
A
62
8
Q
Cattle
A
60
9
Q
Goat
A
60
10
Q
Sheep
A
54
11
Q
River buffalo
A
50
12
Q
Swamp buffalo
A
48
13
Q
Rabbit
A
44
14
Q
Rat
A
42
15
Q
Mouse
A
40
16
Q
Pig
A
40
17
Q
Cat
A
38
18
Q
Types of Gene Interactions/Gene Effects/Phenotypic Expression of Genes:
A
Non-Additive or Qualitative
Additive Gene Effects
Epistatic Interaction
Inheritance of sex and sex-linkage
19
Q
- under Mendelian Inheritance.
- one allele mask the effect/action of the other in a locus
A
Complete dominance
20
Q
neither allele
in a locus is dominant, the heterozygote offspring shows intermediate or blended phenotype.
A
Incomplete or Partial dominance (also called no dominance or lack of dominance)-
21
Q
- heterozygous individuals are superior (possess greater vigor or are more
desirable to either homozygotes; and are said to possess heterosis or hybrid vigor
A
Overdominance
22
Q
- two (both) alleles of a single locus are responsible for the production of two
phenotypically distinct and detectable gene products.
A
Codominance
23
Q
D =
A
100mg
24
Q
d =
A
50mg
25
Q
DDNN =
A
400 mg ADG;
26
Q
N =
A
100mg
27
Q
n =
A
50 mg
28
Q
DDNn or DdNN =
A
350 mg
29
Q
ddnn =
A
200mg
