NEET BIOLOGY

Detailed explanation-1: -A Punnett square allows the prediction of the percentages of phenotypes in the offspring of a cross from known genotypes. A Punnett square can be used to determine a missing genotype based on the other genotypes involved in a cross.

Detailed explanation-2: -A completed Punnett square gives the probable outcome of a given cross. However, actual results may vary from the probable results, especially if only a few organisms are considered. Crosses that involve one trait, such as seed coat color, are called one-factor crosses.

Detailed explanation-3: -A Punnett Square is a helpful tool that helps to predict the variations and probabilities that can come from cross breeding. This includes predicting crossing plants, animals, even humans with each other.

Detailed explanation-4: -B. How are Punnett squares used to predict the outcomes of genetic crosses? Punnett squares are used to show all of the combinations of alleles that might result from a cross and the likelihood that each might occur.