The majority of corn grown in this country is starchy and is fed to cattle. Shriveled or shrunken corn kernels (when allowed to dry) result from defects in the process whereby starch is synthesized from sugar in the endosperm, leading to sweet (and therefore edible by people!) kernels. Two of the most common mutations found in sweet corn are sugary1 (su1) and shrunken2 (sh2), which are recessive alleles of two different genes. If the proteins encoded by both genes (Su1 and Sh2) are both required for the conversion of sugar to starch, what ratio of starchy to sweet offspring do you expect in the F2 generation of a cross between a su1/su1 plant and a sh2/sh2 plant?

Are the earth's ocean floor and continents the same age geologically? why or why not?

How will you manage your time to accomplish the necessary tasks both on the job and at home?

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.