Answer:
The punnet square is a big square split into smaller squares. It is used to find the genetic code for plants, animals, etcetera that have been cross bread. An example of this would be with a flowers genetic code. Lets say R is red, the dominant color, and r is white the non-dominate color. Rr will be our first flower and Rr would be our second flower.
R r
R RR Rr
r Rr rr
This would indicate that out of 4 breeds one would be all white. The other 3 would be red because R is dominate.
Hope this helps you out.
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
b Bb Bb
if you have read the paragraph above then you know what a punnett square is used for now you need to know how to calculate the ratio of the off spring the ratio of the offspring is the number of offspring that have a dominant trait to the number of offspring with the recessive trait in this instance the ratio 4:0
now how do i know if it is a dominant or recessive trait the letters along the box are called alleles and these alleles are capital or lowercase now lower case is recessive and upper case is dominant if have two recessive genotypes (alleles) then the off spring has the recessive phenotype (trait) but dominant is a very different story you see if there is a dominant genotype (allele) at all then they have the dominant phenotype (trait), so dominant would look like this DD or Dd and recessive would look like this dd
i hoped this helped if it di please give me brainlest
Explanation:
