ANSC 1401 – Genetics & Reproduction | Exam 3 With
Correct Answers
Description:
This exam set provides 100% verified questions and answers for ANSC 1401 Exam 3.
It covers DNA structure, inheritance, genetic dominance, breeding strategies,
reproductive technologies, and livestock selection. Ideal for students preparing for
Animal Science genetics and reproduction assessments.
DNA is located in the chromosome of the nucleus of the cell. - answer✔✔True
Gene - answer✔✔Small section of DNA that codes for a specific purpose. Genome
- answer✔✔Sum of genetic material of an animal. Trait - answer✔✔Observable
characteristics Allele - answer✔✔you receive one of these from each parent
which can make a gene have various forms of genotypes and phenotypes. Mitosis -
answer✔✔somatic cell division Meiosis - answer✔✔Development of germ
cells, aka gametogenesis Codominance - answer✔✔when different alleles are
expressed in a phenotype at the same time Incomplete dominance -
answer✔✔when no dominant allele in expressed in a phenotype, rather an
intermediate expression is observed. Mutation - answer✔✔chemical composition
, changes of a gene which alter DNA Selection - answer✔✔allowing some animals
to reproduce more than other animals An animal with matching alleles at a given loci
is homozygous - answer✔✔True An animal with different alleles at a given loci is
heterozygous. - answer✔✔True Dominant alleles are expressed over recessive
alleles. - answer✔✔True An animal with a heterozygous genotype at a given loci
with express the recessive allele in the phenotype - answer✔✔False Epistasis is
the interaction among genes at a different loci - answer✔✔True Assuming normal
dominance of the E and A loci where heterozygosity results in the dominant
phenotype: Black horse: EE Red horse: ee AA: black points aa: no points What is the
genotype - answer✔✔EEAA, EEAa, EeAA EeAa, EEaa, Eeaa You've just bough a
new Angus bull. You want to know if he's homozygous dominant for the black
genotype. How would you do a testcross with some heifers to determine this. -
answer✔✔Mate to homozygous recessive females. Testcrossing to determine
lethal gene carriers are ideal and inexpensive. - answer✔✔False Genes located on
either the X or Y chromosome are known as sex-linked traits. - answer✔✔True
What is the phenotypic frequency of the blue pigs? 3 pigs are blue out of 10 -
answer✔✔.3 What is the genotypic frequency of the recessive gene? 11 out of the
R's are small - answer✔✔.55 Inbreeding - answer✔✔mating closely related
individuals to increase homozygosity Linebreeding - answer✔✔form of inbreeding
in which the purpose is to concentrate genes of an outstanding ancestor in a
herd/population Outbreeding - answer✔✔mating less closely individuals when
Correct Answers
Description:
This exam set provides 100% verified questions and answers for ANSC 1401 Exam 3.
It covers DNA structure, inheritance, genetic dominance, breeding strategies,
reproductive technologies, and livestock selection. Ideal for students preparing for
Animal Science genetics and reproduction assessments.
DNA is located in the chromosome of the nucleus of the cell. - answer✔✔True
Gene - answer✔✔Small section of DNA that codes for a specific purpose. Genome
- answer✔✔Sum of genetic material of an animal. Trait - answer✔✔Observable
characteristics Allele - answer✔✔you receive one of these from each parent
which can make a gene have various forms of genotypes and phenotypes. Mitosis -
answer✔✔somatic cell division Meiosis - answer✔✔Development of germ
cells, aka gametogenesis Codominance - answer✔✔when different alleles are
expressed in a phenotype at the same time Incomplete dominance -
answer✔✔when no dominant allele in expressed in a phenotype, rather an
intermediate expression is observed. Mutation - answer✔✔chemical composition
, changes of a gene which alter DNA Selection - answer✔✔allowing some animals
to reproduce more than other animals An animal with matching alleles at a given loci
is homozygous - answer✔✔True An animal with different alleles at a given loci is
heterozygous. - answer✔✔True Dominant alleles are expressed over recessive
alleles. - answer✔✔True An animal with a heterozygous genotype at a given loci
with express the recessive allele in the phenotype - answer✔✔False Epistasis is
the interaction among genes at a different loci - answer✔✔True Assuming normal
dominance of the E and A loci where heterozygosity results in the dominant
phenotype: Black horse: EE Red horse: ee AA: black points aa: no points What is the
genotype - answer✔✔EEAA, EEAa, EeAA EeAa, EEaa, Eeaa You've just bough a
new Angus bull. You want to know if he's homozygous dominant for the black
genotype. How would you do a testcross with some heifers to determine this. -
answer✔✔Mate to homozygous recessive females. Testcrossing to determine
lethal gene carriers are ideal and inexpensive. - answer✔✔False Genes located on
either the X or Y chromosome are known as sex-linked traits. - answer✔✔True
What is the phenotypic frequency of the blue pigs? 3 pigs are blue out of 10 -
answer✔✔.3 What is the genotypic frequency of the recessive gene? 11 out of the
R's are small - answer✔✔.55 Inbreeding - answer✔✔mating closely related
individuals to increase homozygosity Linebreeding - answer✔✔form of inbreeding
in which the purpose is to concentrate genes of an outstanding ancestor in a
herd/population Outbreeding - answer✔✔mating less closely individuals when
