50 points! due today asap! will mark correct answer brainliest < 3 you so

complete the punnett square. a dog with dominant black hair (bb) is bred with a dog with brown hair (bb).

answer the questions below.

a. what is the probability of a puppy being black or brown?

b. which dog is heterozygous for hair color?

a. 50%

b. The dog with black hair (Bb)

Explanation:

a) The dog with dominant black hair (Bb) has two different alleles, namely B and b.

The dog with brown hair (bb) has two alleles 'b.'

Therefore,  we have the following Punnett square:

(please see the image)

According to the square, the probability of having a puppy being black or brown is 50%.

b) The heterozygous for for hair color has the genotype of Bb.

Therefore, the dog with such a genotype has black hair.

what's the rest of the question

the backbone of the dna and rna compound is sugar phosphate.