Biology Forums - Study Force

Biology-Related Homework Help Genetics and Developmental Biology Topic started by: Humbah on Mar 16, 2016



Title: Gene interaction, when recessive allele in homozygous state in one locus inhibits expression of domi
Post by: Humbah on Mar 16, 2016
Hello!

Im wondering what you people would answer for this question and please explain why also!

The question is attaced in document

Best regards


Title: Gene interaction, when recessive allele in homozygous state in one locus inhibits expression of domi
Post by: bio_man on Mar 16, 2016
/me The question needs to be posted word for word


Title: Gene interaction, when recessive allele in homozygous state in one locus inhibits expression of domi
Post by: Humbah on Mar 17, 2016
Gene interaction, when recessive allele in homozygous state in one locus inhibits expression of dominant allele in other locus is:

a) Genetic heterogenity
b) Incomplete penetrance
c) epistasis
d) Locus heterogenity
e) Polygenic inheritance trait
f) C+E


Title: Re: Gene interaction, when recessive allele in homozygous state in one locus inhibits expression of
Post by: bio_man on Mar 17, 2016
I can't see any one them being an option. The only possibility I see is incomplete penetrance, which is when some individuals with a particular (dominant) mutation express a wild type phenotype.


Title: Re: Gene interaction, when recessive allele in homozygous state in one locus inhibits expression of
Post by: Humbah on Mar 17, 2016
Well in my opinion epistasis is the correct one, but according to answer sheet the correct answer is polygenic inheritance trait!

It cant be incomplete penetrance because then no phenotype is really hidden its just a intermediate of the parental phenothypes!

 ;)


Title: Re: Gene interaction, when recessive allele in homozygous state in one locus inhibits expression of
Post by: bio_man on Mar 17, 2016
I can see how epistasis could fit as well; in fact, it fits a lot better than what I suggested. Still not sure how it can be polygenic inheritance though. Polygenic inheritance is when a single trait is controlled by 2 or more sets of alleles.