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2 years ago

I need help with punnet squares

Biology

2 answers:

iVinArrow [24]2 years ago

7 0

What do you need help with regarding them

erastova [34]2 years ago

4 0

Answer:

a punnett square shows the probability that the parents off spring will have a certain phenotype be cross the parents two genotypes

further Explanation:

so a punnett square take two parents and crosses them to calculate the chance you will get a certain phenotype by drawing a square and splitting it into four quarter you take the dads two genotypes and put them on the top of the square and you put the moms on the side now that you have the parents genotypes labeled you cross them the letters are there alleles so if you have a upper case allele then it is dominant meaning the offspring get the dominant trait (phenotype) now if you have two lower case letters then the offspring get the non-dominant trait (phenotype) so Bb is gets a dominant trait BB is a dominant trait but bb is a non dominant trait the way you cross them is say you have BBxbb here's what the chart will look like

B B

b Bb Bb

i hoped this helped if it di please give me brainlest

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