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ANSC 4395 Animal Breeding & Genetics Exam Test 1 With 100% Correct And Verified Answers
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ANSC 4395 Animal Breeding & Genetics Exam Test 1 With 100% Correct And Verified Answers
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ANSC 4395 Animal Breeding & GeneticsExam Test 1 With 100% Correct And
Verified Answers
Animal Breeding - Correct Answer-scientific field that uses the principles
of genetics to aid in the improvement of livestock
Purebred breeders have attempted to improve their livestock since at least
the... - Correct Answer-1700s
Many of our current breeds have their roots in Great Britain and
continental Europe, dating back to the... - Correct Answer-18th & 19th
centuries
Robert Bakewell - Correct Answer-"Father of Animal Breeding"
What type of animals did Robert Bakewell work with? - Correct Answer-
Longhorn cattle, Shire horses, and Leicester sheep
What else did Robert Bakewell do? - Correct Answer--Sought out
individuals that would strengthen his herd
-Leased out males to neighbors to identify animals that produced superior
offspring
-Mated 'best' to 'best' with little regard to ancestry
One of the first organized breeds of livestock (1580) ? - Correct Answer-
Shorthorns
When did Shorthorn breeders begin keeping records? - Correct Answer-
1750
During the mid 19th century, who studied genetics of the garden pea? -
Correct Answer-Gregor Mendel
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, Gregor Mendel also... - Correct Answer--Established basic genetic
principles that are still accepted today
-Results of his experiments were published in an obscure scientific journal
and were not widely known until the early 20th century
Population Genetics - Correct Answer-Branch of genetics which deals with
the factors that affect the genetic structure of populations
Dr. Sewell Wright - Correct Answer--Pioneer of the population genetics
field
-Did his research with the USDA and later at the University of Chicago
Sir Ronald Fisher - Correct Answer--Pioneer of the population genetics
field
-Worked at the Rothamstead Experiment Station in Great Britain
Dr. Wright & Dr. Fisher's running debates and arguments fueled the rapid
development of the field in what year(s)? - Correct Answer-1920s & 1930s
Dr. Jay Lush - Correct Answer-"Father of Modern Animal Breeding"
Dr. Lush worked at... - Correct Answer-Iowa State University in the 1920s
and extended the work of Wright & Fisher to design programs for farm
animals
Dr. Lush also... - Correct Answer--Established a formal theoretical
framework to the science of animal breeding
-Established principles of selection, the use of inbreeding to conserve
genes of some individuals, & crossbreeding systems to take advantage of
hybrid vigor
During the last 40-50 years... - Correct Answer-The use of computers has
greatly enhanced the potential for genetic change.
EX: Breed associations have extensive databases that allow comparisons
of all individuals within a breed
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