Thursday, June 17, 2010

3.In dogs, short hair is dominant over long hair. Two short-haired dogs are the parents of a litter

In dogs, short hair is dominant over long hair. Two short-haired dogs are the parents of a litter of eight puppies. Six puppies have short hair and two have long hair. What are the genotypes of the parents?



3.In dogs, short hair is dominant over long hair. Two short-haired dogs are the parents of a litter of eight?

Obviously, each of them has one Dominant short hair and one recessive long hair gene. You would expect three fourths the litter to have short hair. That is just what you have.



This is a wonderful question. I love it when people actually think about canine genetics when choosing breeding pairs. Good job.



3.In dogs, short hair is dominant over long hair. Two short-haired dogs are the parents of a litter of eight?

Hh and Hh



3.In dogs, short hair is dominant over long hair. Two short-haired dogs are the parents of a litter of eight?

this means that ether the mom or dad's parents had long hair%26gt;



3.In dogs, short hair is dominant over long hair. Two short-haired dogs are the parents of a litter of eight?

Both parents are Ss.



EDIT: Hey! We're not doing your homework for you, are we?



Statistically speaking, out of the 8 puppies:



2 would be SS (short haired)



4 would be Ss (short haired)



and 2 would be ss (long haired)



3.In dogs, short hair is dominant over long hair. Two short-haired dogs are the parents of a litter of eight?

S= short haired s= long haired



the genotypes of the parents are both Ss because only two recessive can produce a recessive offspring and neither can be completely recessive or more of the pups would be recessive.



3.In dogs, short hair is dominant over long hair. Two short-haired dogs are the parents of a litter of eight?

Hh and Hh



if H= short hair and h= long hair



3.In dogs, short hair is dominant over long hair. Two short-haired dogs are the parents of a litter of eight?

Both parents are heterozygous for the trait causing hair length - Hh and Hh or Ll and Ll whatever letters you choose.



3.In dogs, short hair is dominant over long hair. Two short-haired dogs are the parents of a litter of eight?

both must have a recessive gene for long hair. otherwise upon splitting of DNA, half of the puppies genes would always have the dominant short hair trait and be born with short hair.



3.In dogs, short hair is dominant over long hair. Two short-haired dogs are the parents of a litter of eight?

Just like human hair, both parents might have brown hair (the most dominant gene) but the child's hair color could be red which she inherited from their grandmother. Genes are all the same when it comes to humans and dogs. You new puppies grandparents or great-grandparent may have been long-haired. Have a super time with the now ones! :)



3.In dogs, short hair is dominant over long hair. Two short-haired dogs are the parents of a litter of eight?

I have never seen someone run in such a high negative score. You sure take the cake for that one.



3.In dogs, short hair is dominant over long hair. Two short-haired dogs are the parents of a litter of eight?

Each of the parents had a recessive (not dominate) gene for long hair.



The each long hair puppy received a recessive long hair gene from each parent. Thus the recessive gene rules.



dominate gene + dominate gene = Dominate gene



dominate gene + recessive gene = Dominate gene



recessive gene + recessive gene = recessive gene



Hope this helps.



grannalin

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