Recent studies suggest that having the A blood type increases the risk of serious complications for patients suffering from COVID-19.  Sarah doesn't know her blood type, but she knows her father is type O and her mother is type AB. What is the probability, from 0 to 100 percent, that Sarah is blood type A? Enter a single whole number from 0 to 100.

Blood types in humans are caused by a combination of two of three possible alleles - IA, IB, and i. The i allele is recessive and individuals homozygous for this allele have blood types O.  Blood type A may be due to either homozygous condition or the IA i   Blood type AB is caused by having a copy of both the IA and IB alleles.  Rh factor is another “marker” on human red blood cells and is either positive (dominant—RR or Rr) or negative (recessive—rr). Franks has blood type A-negative. Frank’s father is B-positive and his mother is AB-positive. Frank marries Susan, a woman that is B-positive.  Susan’s mother is A-negative and her father is AB-positive.  Give the genotype of all of the individuals mentioned above.   b. Give the genotypes and phenotypes of the possible offspring from this marriage

Your internship with Dr. Nefario at Gru Industries is going well so far, but a recent mission to obtain a shrink ray requires a special kind of Minion. You identify that the ideal Minion phenotypes for this mission are two eyes, pale yellow, and short. From your previous work, you’ve found that:Two-eyed (D) is completely dominant over one-eyed (d)Yellow (Y) is incompletely dominant with white (y)Tall (T) is completely dominant over short (t) a. The only reproductive individuals you have at the moment (it was surprise mission!) are a true breeding two-eyed, yellow, short Minion and a one heterozygous for each trait. What genotypic ratios would you expect for this crossassuming that each locus is on a different chromosome? What total proportion would you expect to be the desired phenotype for the mission? b. The mission has since been delayed due to lack of financial support, so you’ve got some time. All the individuals from the F1 cross above are now reproductive. Which genotypes would…

I am a little confused on this question.

what fraction of the offspring of two parents with sickle trait would you expect to have sickle cell anemia? Explain how you arrived at this answer. Also include a punnet square

Please solve

DNA sequencing of your own two β-globin genes (one from each of your two Chromosome 11s) reveals a mutation in one of the genes. given this information alone, should you worry about being a carrier of an inherited disease that could be passed on to your children? What other information would you like to have to assess your risk?

Now, figure out the complementation groups. This shows how many genes are involved in this pathway. Some of the mutant classes in the previous problem must contain more than one complementation group (gene) For example class 2 is defined by mutants 1,3,4,6, and 7. These mutants may, or may not, all be in the same gene. Complementation testing will help you know if they are, or are not, in the same gene. So there are actually additional steps between some of the letters. For example, maybe instead of XàY, it is really XàFàGàY.

A woman diagnosed with early-onset Alzheimer's due to a mutation of the APP genehas children with a man that has no family history of familial Alzheimer's.  Give the probability of each possible genotype with corresponding phenotype. (The woman has two possible allele combinations.  You must show both possibilities)

Can you please answer #10?