ANSC 4395-Animal Breeding & Genetics
Test 1 with 100% correct answers
Animal Breeding - ANS 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... - ANS
1700s
Many of our current breeds have their roots in Great Britain and continental Europe,
dating back to the... - ANS 18th & 19th centuries
Robert Bakewell - ANS "Father of Animal Breeding"
What type of animals did Robert Bakewell work with? - ANS Longhorn cattle, Shire
horses, and Leicester sheep
What else did Robert Bakewell do? - ANS -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) ? - ANS Shorthorns
When did Shorthorn breeders begin keeping records? - ANS 1750
During the mid 19th century, who studied genetics of the garden pea? - ANS Gregor
Mendel
Gregor Mendel also... - ANS -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 - ANS Branch of genetics which deals with the factors that affect
the genetic structure of populations
, Dr. Sewell Wright - ANS -Pioneer of the population genetics field
-Did his research with the USDA and later at the University of Chicago
Sir Ronald Fisher - ANS -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)? - ANS 1920s & 1930s
Dr. Jay Lush - ANS "Father of Modern Animal Breeding"
Dr. Lush worked at... - ANS Iowa State University in the 1920s and extended the work
of Wright & Fisher to design programs for farm animals
Dr. Lush also... - ANS -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... - ANS 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
A.I. & E.T. have allowed for... - ANS Faster progeny testing and selection has become
much more efficient
The Future... - ANS -Cloning
-Genetically engineered compounds
-Gene therapy
-Gene splicing
-DNA transfer (may make their way into livestock improvement plans)
The primary goal of animal breeders is to... - ANS Identify animals with desirable genes
and increase the frequency of those genes
What is the best animal? - ANS No one has the answer, everyone likely has an opinion
though.
Test 1 with 100% correct answers
Animal Breeding - ANS 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... - ANS
1700s
Many of our current breeds have their roots in Great Britain and continental Europe,
dating back to the... - ANS 18th & 19th centuries
Robert Bakewell - ANS "Father of Animal Breeding"
What type of animals did Robert Bakewell work with? - ANS Longhorn cattle, Shire
horses, and Leicester sheep
What else did Robert Bakewell do? - ANS -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) ? - ANS Shorthorns
When did Shorthorn breeders begin keeping records? - ANS 1750
During the mid 19th century, who studied genetics of the garden pea? - ANS Gregor
Mendel
Gregor Mendel also... - ANS -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 - ANS Branch of genetics which deals with the factors that affect
the genetic structure of populations
, Dr. Sewell Wright - ANS -Pioneer of the population genetics field
-Did his research with the USDA and later at the University of Chicago
Sir Ronald Fisher - ANS -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)? - ANS 1920s & 1930s
Dr. Jay Lush - ANS "Father of Modern Animal Breeding"
Dr. Lush worked at... - ANS Iowa State University in the 1920s and extended the work
of Wright & Fisher to design programs for farm animals
Dr. Lush also... - ANS -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... - ANS 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
A.I. & E.T. have allowed for... - ANS Faster progeny testing and selection has become
much more efficient
The Future... - ANS -Cloning
-Genetically engineered compounds
-Gene therapy
-Gene splicing
-DNA transfer (may make their way into livestock improvement plans)
The primary goal of animal breeders is to... - ANS Identify animals with desirable genes
and increase the frequency of those genes
What is the best animal? - ANS No one has the answer, everyone likely has an opinion
though.
