Suppose you are working with pea plants like Mendel. You cross two plants, one that is a tall plant and one that is a short plant. This would be considered a Test cross O Dihybrid cross O Monohybrid cross Non-genetic cross

In a cross, Aa Bb Cc Dd Ee x Aa Bb cc Dd ee, what proportion of offspring are expected to be homozygous recessive for all five genes? show your work.

We have crossed true-breeding flies today. Wild type to mutant. Their phenotypes were wt and vg se. (Let’s not worry about males and females for now, just assume both genes are autosomal, which is normal in a Mendelian experiment). The results of a cross are phenotypes. I will be asking you for numbers or a ratio of phenotype numbers you expect to see in the offspring from this cross. To answer this, you’ll need to start with the genotypes of parents, then write their gametes, then write the offspring genotypes, then get the phenotypes based on them. Predict the results of this cross: In case both mutations are recessive; In case both mutations are dominant; In case vestigial wings are recessive and the sepia eyes are dominant.

During an investigation, two German shepherds with long hair were each bred with a German shepherd with short hair in a first-generation cross. The offspring from each first-generation cross were then bred to produce a second-generation cross. Which questions could be answered using the results of this investigation? Select the three correct answers. O Is hair length in German shepherds a dominant or recessive trait? O How often does the mutation for long hair randomly occur in German shepherds? How does the protein made by the gene for hair length differ among German shepherds? O Is long hair in German shepherds an inherited trait? O What percentage of offspring in the second generation of German shepherds are homozygous for the recessive hair-length trait?