There are two types of diabetes, Type I and Type II. The treatment for Type 1 diabetes is different from the treatment for Type II
diabetes, so it is important for a correct diagnosis to be made.
Diagnosis can be difficult, particularly in people aged between 20 and 40 years old.
A genetic screening method is now available for the diagnosis of diabetes.
Explain why doctors are more likely to screen individuals once they develop
diabetes than use methods such as prenatal testing.
(3)

Considering the yellow and green pea color phenotypes studied by gregor mendel: a. what is the biochemical function of the protein that is specified by the gene responsible for the pea color phenotype? (1 point) b. a null allele of a gene is an allele that does not specify (or encode) any of the biochemical function that the gene normally provides (in other words, either no protein at all or only non-functional protein is produced from it). of the two alleles, y and y, which is more likely to be a null allele? (1 point) c. in terms of the underlying biochemistry, why is the y allele dominant to the y allele? (2 points) d. why are peas that are yy homozygotes green? (1 point) e. the amount of protein produced from a gene is roughly proportional to the number of functional copies of the gene carried by a cell or individual. what do the phenotypes of yy homozygotes, yy heterozygotes, and yy homozygotes tell us about the amount of sgr enzyme needed to produce a yellow color? explain your reasoning. (2 points)

What happens when a scientific theory is shown to be an accurate description of a phenomenon?

In which energy level are valence electrons located?