Genetics

Question 1

what is genetics

Answer 1

science of dealing with hereditary and variation.
similarities and differences in individuals related by descent.

Question 2

what is animal genetics

Answer 2

.study of the principles of inheritance in animals

Question 3

animal breeding

Answer 3

.application of the principles go animal genetics with the goal of improvement of animals.

Question 4

what is the purpose of animal breeding?

Answer 4

improve genetically the economic efficiency pop livestock production

Question 5

main tool in genetic improvement of economic of economic merit

Answer 5

selection

Question 6

how is livestock improvement done

Answer 6

change

Question 7

how do animals change ?

Answer 7

selection determining the parents of the next generation

Question 8

natural selection

Answer 8

1. Strength
2. Size
3. Intelligence
4. Color
5. Defense strategies
6. Flexibility
7. Longevity
   Genetic fitness

Question 9

Robert Bakewell

Answer 9

father of animals breeding
.purebred concept

Question 10

self domestication / human intervention

Answer 10

1. selection for tameness
2. strict captivity-limit breeding
3. intentional breeding
4. trait standardization
5. eliminate wild species (genes)

Question 11

human domestication / human intervention

Answer 11

1.control herd movement
2. eliminate problems
3. selection for tameness
4. strict captivity - limit breeding
5. intentional breeding
6. trait standardization
7. eliminate wild species (genes )

Question 12

nuclein

Answer 12

nucleic acids

Question 13

phentotype variance formula

Answer 13

p= g+e
p = variance
g= genetic variance <breeding value
e= environmental variance <permanent environment - tempray environment

Question 14

what does BAC stand for

Answer 14

bacterial artificial chromosome

Question 15

genetic selection effects on dairy , swine, sheep , chicken , turke , beef, horse, dogs , cats

Answer 15

1.Less cows we have genetically modified cows to have a higher milk production so wee need less cows

2. FE= feed efficiency every pound of meat you feed them 6 pounds of feed 6:1 down to 2.5 : 1 fat to lean
3. 4x wool production
4. Jungle fowl to white leghorn
   Jungle fowl lay 15 eggs per year and the white leghorn lay 300 eggs per year
5. AI is required due to election for breast meat
6. little change in production
7. No change in speed index in 40 years
8. creating new genetics wrecks
9. trying to create genetic wrecks

Question 16

DNA does what

Answer 16

structure and replication

Question 17

RNA does ..

Answer 17

transcription and translation

Question 18

protein synthesis

Answer 18

amino acids

Question 19

central dogma of genetics

Answer 19

testing
Dna is transcribed to rna and rna is translated to protein

Question 20

deoxyribonucleic acid stand is

Answer 20

DNA the blueprint of life

Question 21

chromosome count

Answer 21

Dog-78
Cat - 38
Pig- 38
Cattle - 60
Sheep- 54
Goat - 60
Horse - 64
Camel - 74
Chicken - 78
Turkey - 80
Rabbit - 44
Rat - 42
Mouse - 40
Llama - 74
Alpaca - 74

Question 22

what is a nucleotide composed of

Answer 22

nitrogen base , 5 carbon sugar and phosphate

Question 23

what are the 4 DNA bases

Answer 23

adenine and guanine , - cytosine and thymine

Question 24

what are the two bases names

Answer 24

purine bases and Pyrimidine bases

Question 25

what bases pair together

Answer 25

A & T AND C&G

Question 26

DNA is what kind of structure

Answer 26

double helix

Question 27

each DNA strand becomes a ..

Answer 27

template , parent strand comes apart