Exam (elaborations)
ANSC 340 Questions with complete solutions.
- Course
- ANSC 4100
- Institution
- University Of Guelph (U Of G )
ANSC 340 Questions with complete solutions.
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ANSC 340 Questions with complete solutionswhich to mechanisms both contribute to genetic diversity Correct
Answer-meisosis
crossing over
You have decided to spend money to have all of your potential breeders
tested for the presence of a lethal allele. You then breed only those who
tested negative. This is an example of: Correct Answer-marker assisted
selection
The mating of an individual with a dominant phenotype to one that is a
known homozygous recessive id termed as: Correct Answer-testcross
______ mating is the mating amongst generation Correct Answer-inter
se
_____ is the mating of an F1 to an individual from one of the pure
breeding strains used to create the F1 Correct Answer-backcross
phenotype ratio you would expect from a dihybrid cross Correct
Answer-9:3:3:2
are mammalian gametic cells diploid Correct Answer-no, haploid
a missense mutation is one that codes for a premature stop Correct
Answer-false, non-sense
, What is the simplest (3 word) explanation of Mendel's Law of
Segregation Correct Answer-alleles sort randomly
genes on sex chromosomes are referred to as Correct Answer-sex-linked
in the horse, the mare is the homogametic sex Correct Answer-true
in the chicken, the hen is the homogametic sex Correct Answer-false
(male)
The failure of chromosomes to separate properly during meiosis is
known as: Correct Answer-nondisjunction
In humans, this is a relatively common example of the phenomenon
described in the previous question: Correct Answer-down syndrome
Calico coloring in a male cat is extremely rare. What must occur (in
terms of the cat's genotype) for a male cat to be calico? Correct
Answer--nondisjunction at the sex chromosome and presence of the
spotted allele must occur
In the case of codominance and two alleles, how many distinct
phenotypes are there? Correct Answer-3
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