A mating between Abyssinian and blotched tabbies yielded a black kitten and several Abyssinians. What were the most likely genotypes of the parents? Show two alleles of the A and T genes for both parents and state which parent is which.
Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
A mating between Abyssinian and blotched tabbies yielded a black kitten and several Abyssinians. What were the most likely genotypes of the parents? Show two alleles of the A and T genes for both parents and state which parent is which.
![BLOTCHED
ABYSSINIAN
a is ✓ [Select ]
dominant
epistatic
recessive
complementary
to aw
awa or awaw
agouti
to t
aa
black
Agouti cats (awa or awaw - we will not consider here the other alleles discussed in
Video 3.1) can have various tabby striping/spotting patterns depending on their
alleles of the T gene. Agouti cats (awa or awaw ) with the genotype TªTª or Tªt are
Abyssinians, and those with the genotype tt are blotched. However, these
striping/spotting patterns are not observed in non-agouti cats of aa genotype,
which are black regardless of their T alleles. This information is also presented
above in schematic form, and is background information for the next question as
well as this one.
Choose the correct allelic relationships based on this information:
a is [Select]
TaTa or Tat
Abyssinian
tt
blotched](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffae4804d-998d-4966-bf0a-5868a8bf6639%2F0971cbac-566c-4f65-8e67-ae64246a61f2%2Fwkr004l_processed.png&w=3840&q=75)
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