Sunday, May 9, 2021

Solved: In Mice, Agouti Fur Is A Dominant Trait... | Chegg.com

zack May 09, 2021 No comments

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Environmental Protection (топик на английском)

Agouti-signaling protein is a protein that in humans is encoded by the ASIP gene. It is responsible for the distribution of melanin pigment in mammals. Agouti interacts with the melanocortin 1 receptor to determine whether the melanocyte (pigment cell) produces phaeomelanin (a red to yellow pigment)...However, if the 'Brown' mouse wasn't Agouti, & was actually another brown called Chocolate (I'm serious), then crossing Black (which in this case will be BB) to Chocolate (bb) would result in an entire litter of Blacks carrying Chocolate (Bb) . If you crossed 2 of the offspring together, you would get a...What will be the ratios in the F2 generation? What other genotypes and in what frequencies, would you expect in offspring from this marriage? This gives a frosted appearance known as agouti. If mice that are heterozygous at both loci are crossed, what will be the expected phenotypic ratio of...black parents includes offspring with the following fur colors:solid color, blacksolid color, brown (sometimes called chocolate)agouti blackagouti brown (sometimes called cinnamon)What would be the expected frequency of agouti brown offspring in the litter?You did not open hints for this part.

Vivipary automatically limits the number of offspring in a litter. How ?

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Genetically talking, there are more or less 8 widely known 'Brown' mice. They all have different genes, which creates different sun shades. You must most certainly to find out what shade of brown this 'Brown' mouse in question is.

There is only one type of Black genetic colouring in mice.

Generally talking, if we had been just using the common Agouti brown mouse (wild color) & crossed it to Black, then the complete litter should've resulted in Agouti mice. However, Agouti being represented by means of a dominant A-, & the Black being represented by a recessive AA, crossing A- to AA would end result in an complete litter of Aa = Agouti carring Black.

If you crossed one of the ones offspring again to the Black parent, you would get Aa & AA in the litter, ensuing in the litter being 50% black, 50% Agouti.

However, if the 'Brown' mouse wasn't Agouti, & used to be if truth be told every other brown called Chocolate (I'm severe), then crossing Black (which in this case will be BB) to Chocolate (bb) would result in a complete litter of Blacks carrying Chocolate (Bb) . If you crossed 2 of the offspring in combination, you would get a mixture of Blacks & Chocolates.

NB: Black is a dominant gene to all other genes however Agouti.