Mendelian Genetics [6F. R]:Question 1
In cocker spaniels the allele for a black coat color (B) is dominant
over the allele for a brown coat color (b). If a heterozygous black
cocker spaniel is crossed with a brown cocker spaniel, what fraction
of their offspring would be expected to have a brown coat?

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explanation:

yooptfrhtr

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

it takes hundreds of years to become stable.

if you have another question lmk.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: