Diploid Number (2n) of Chromosomes for Common Domestic Animals

Question 1

Turkey

Answer 1

82

Question 2

Ducks

Answer 2

80

Question 3

Chicken

Answer 3

78

Question 4

Dog

Answer 4

78

Question 5

Camel

Answer 5

74

Question 6

Horse

Answer 6

64

Question 7

Donkey

Answer 7

62

Question 8

Cattle

Answer 8

60

Question 9

Goat

Answer 9

60

Question 10

Sheep

Answer 10

54

Question 11

River buffalo

Answer 11

50

Question 12

Swamp buffalo

Answer 12

48

Question 13

Rabbit

Answer 13

44

Question 14

Rat

Answer 14

42

Question 15

Mouse

Answer 15

40

Question 16

Pig

Answer 16

40

Question 17

Cat

Answer 17

38

Question 18

Types of Gene Interactions/Gene Effects/Phenotypic Expression of Genes:

Answer 18

Non-Additive or Qualitative
Additive Gene Effects
Epistatic Interaction
Inheritance of sex and sex-linkage

Question 19

• under Mendelian Inheritance.
• one allele mask the effect/action of the other in a locus

Answer 19

Complete dominance

Question 20

neither allele
in a locus is dominant, the heterozygote offspring shows intermediate or blended phenotype.

Answer 20

Incomplete or Partial dominance (also called no dominance or lack of dominance)-

Question 21

• heterozygous individuals are superior (possess greater vigor or are more
  desirable to either homozygotes; and are said to possess heterosis or hybrid vigor

Answer 21

Overdominance

Question 22

• two (both) alleles of a single locus are responsible for the production of two
  phenotypically distinct and detectable gene products.

Answer 22

Codominance

Question 23

D =

Answer 23

100mg

Question 24

d =

Answer 24

50mg

Question 25

DDNN =

Answer 25

400 mg ADG;

Question 26

N =

Answer 26

100mg

Question 27

n =

Answer 27

50 mg

Question 28

DDNn or DdNN =

Answer 28

350 mg

Question 29

ddnn =

Answer 29

200mg