hey, even though this sort of question is repetitive, this one contradicts my previous knowledge , can you please tell me where am I wrong ?
I narrowed the options down to three, as we can see the answer says offspring are 50% heterozygous , which means we can make sure that the white one is surely Cc and not cc
bc otherwise it would have been 100% ,additionally we can see that Cc is white , meaning dominant , so the other 50% offspring being Cc are white, but the answer says the only phenotype is black , what am I doing wrong ?
the answer is D
Hey Yasy ! Here is how I tried to attempt the question. First , the mouse 1 is homozygous dominant so it’s genotype is CC, breeding with a white mouse, the genotype of the white mouse must be cc. Their F1 generation line will all be black mouse with genotype Cc. Mating the mouse 1 CC and mouse 2 Cc we will get the F2 generation mice with genotype CC and Cc , all mice black with 50 percent of heterozygosity. Hope my explanation helps!
thank you for replying , as you said " Mating the mouse 1 CC and mouse 2 Cc we will get the F2 generation mice with genotype CC and Cc , all mice black with 50 percent of heterozygosity" MY POINT is that we are attributing Cc to the white mice, how is next generation ,the same Cc, is called black? I’m not sure if you get my question or not but what I’m saying is when the white one is Cc and mating with CC black, the Cc offspring need to be called white
that’s where I am struggling with haha
omg ,THANK YOU very much ,mice num2 was the whole point!!! lol
i was totally confused by considering the first 2 mouse mating, while number 2 is a offspring already!
I truly appreciate your time and compassionate explanation