the pedigree below, determine whether the alleles B or C have a dominant or recessive relationship, which allele is dominant, and the genotype for individuals I-1, I-2, I-3, I-4, II-4, and II-5. Use B or C for the alleles and X for unknown alleles.  Note: White

Please DEFINE the alleles involved in this cross, using genetic notation consistent with the pattern of inheritance exhibited by this trait.    Dwarf allele:       __________                Normal sized allele:         __________

In flies, eye color is a sex-linked trait. Red eyes are dominant (XE) and white eyes are recessive (X). Consider the following 2 cases: 8) The female fly has white eyes and the male fly has red eyes. Figure out the percentage or ratio of possible genotypes and phenotypes of their offspring. Construct a Punnett Square first. Possible genotypes: Possible phenotypes: XE XE: Red Eyes: XE X°: Xe X°: XE Y: White Eyes: Xe Y: 751°F

PEDIGREE: Shaded individuals in the pedigree have a genetic disease. Individuals marrying into the family, that is individuals II–1, II–4 and II–6, have no history of the disease in their families.1. Determine the mode of inheritance ______________________________2. Give the genotypes of the following individuals

Please help answer question 1 What would a pedigree of Greg and Olga’s families look like? Concentrate simply on family relationships and aff ected persons.

Given the pedigree below, answer the following questions. Note that filled symbols represent affected individuals. You assume that the allele carrying the disease is rare and therefore individuals marrying into the family are unlikely to have defective alleles. Also, assume complete penetrance. Q2) What are the genotypes of the following individuals listed in the table below? Use the uppercase “A” to represent the dominant allele and lowercase “a” for the recessive allele. Individual Genotype II-7   III-5   IV-1   IV-3   I-2   III-7

Below is a pedigree chart for a family that has a history of Alkaptonuria.   Individuals infected with this condition can have darkened skin, brown urine, and can suffer from joint damage and other complications.  Given this pedigree answer the following questions.   Given the data in the pedigree chart is this genetic condition autosomal dominant or autosomal recessive? What are the genotypes for #1, #2, and #3?  If either of the 4th generation "aa" females were to mate with a homozygous dominant male would any of their offspring illustrate the phenotype?  Why or why not?

You are trying to find a blood donor to help treat some of your patients. The C-yonce and Kay-Z have 3 children with blood types A , B, and O. The youngest with blood type O needs a transfusion and you're trying to figure out if either of the parents are a match so you test the parent genotypes. Note: Alleles for each blood type are expressed as follows: blood type A= I^A blood type B= I^B blood type O= i Hint: Remember that 2 alleles contribute to a persons blood type. Pay attention to dominant and recessive relationships among the alleles.     1-C-yonce is type B. What must her genotype be? 2-What must Kay-Z’s genotype be? 3-Which parent can give blood to their child ? 4-After running lab tests, it was discovered that the children's blood types were reported incorrectly.(This does not affect the genotypes entered for C-yonce and Kay-Z in the previous questions.) Their youngest actually has blood type AB, and still needs a blood transfusion.  Which parent can donate blood to the child…

Use the following information to answer the next question. The shape of the fruit of summer squash plants is determined by the interaction of two genes. The genotypes and corresponding phenotypes for the shapes of summer squash are given below. a. DDee b. ddee In order to determine the genotype of a squash with disc-shaped fruit a plant breeder would cross the disc- shaped plant with which of the following? Select one: c. ddEE Genotype D_E_ D_ee, ddE_ ddee d. DDEE Phenotype disc-shaped fruit sphere-shaped fruit long-shaped fruit

Cystic fibrosis (CF) is an autosomal recessive trait. A three-generation pedigree is shown below for a family that carries the mutant allele for cystic fibrosis. Note that carriers are not colored in to allow you to figure out their genotypes.      Normal allele =  F      CF mutant allele =  f        What is the genotype of individual #13? A) ff B) FF C) Ff  D) it is impossible to tell