What is a punnet square and how do you figure out questions regarding a punnet square
A Punnet square is a table that shows what traits two parents (or first generation species) have and the possible outcomes the offspring will have. You can tell the chances of getting certain genes are. I'm not quite sure how to make an example on here, but that's the basic explanation.
I searched Google under the key words "Punnett square":
http://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I hope this helps a little more.
A Punnett square is a graphical representation of how different genes can combine during reproduction to predict the probability of traits being passed on to offspring. It is named after Reginald Punnett, a British geneticist who developed this method.
To figure out questions regarding a Punnett square, you need to follow these steps:
1. Determine the genotypes of the parents: Start by identifying the genotypes of the parents for the trait you are interested in. Each parent will contribute one allele (variant of a gene) for that trait. For example, if you are looking at the trait of flower color in pea plants, let's say one parent is homozygous dominant (YY) for yellow flowers, and the other parent is homozygous recessive (yy) for green flowers.
2. Create the square: Draw a square divided into four boxes (two rows and two columns). Each box represents a possible combination of alleles that the offspring could inherit.
3. Fill in the genotypes: Label the top row and left column with the alleles from one parent, and the other row and column with the alleles from the other parent. In our example, the top row will be labeled Y (corresponding to the yellow flower allele) and the left column will be labeled y (corresponding to the green flower allele).
4. Combine the alleles: Fill in the boxes by combining one allele from each parent. In our example, you will write Y in the top left box (since it comes from the homozygous dominant parent), and y in the bottom right box (since it comes from the homozygous recessive parent).
5. Analyze the results: Determine the possible genotypes and phenotypes (observable traits) in the offspring. In our example, all the offspring in the Punnett square will have a genotype of Yy (heterozygous) and a phenotype of yellow flowers, as the dominant allele Y will always mask the recessive allele y.
Remember that Punnett squares provide probabilities, not certainties. The results show the likelihood of different genotypes and phenotypes appearing in the offspring.