The ABO blood group gene has three alleles, with /4 and The Rh blood group gene

Question

The ABO blood group gene has three alleles, with /4 and The Rh blood group gene has only two alleles, with the Rh+ phenotype (R allele) dominant over Rh-( allele). Finally, the MN blood group gene has two codominant alleles, Mand N 1 . codominant, and i recessive A child has blood types B, Rh-, and M. His mother has blood types O, Rh+, and MN Give the genotype of the mother, and the possible genotypes of the father 2. Four mutant lines of yeast are unable to produce the amino acid Proline. In each of the four mutant lines, a different compound accumulates: compound A in mutant line 1, compound B in mutant line 2, compound C in mutant line 3, and compound D in mutant line 4. Each mutant strain is cultured in the presence of various media, and the mutants that grow in a specific medium are denoted by a+,while those that fail to grow are denoted by a- Based on these data, depict the correct order of intermediate compounds (A, B, C, D) in the proline biosynthetic pathway and point out the correct point at which each mutant gene (1, 2, 3,4) acts in the pathway Growth Medium Yeast minimal minimal + comp minimal+ comp minimal comp minimal+ comp train Control minimal Mutant 1 Mutant 2 Mutant 3 Mutant 4 . A series of crosses is performed of true-breeding white-furred, short-tailed female mice with true-breeding brown-furred, long-tailed male mice. All Fl offspring are brown- furred and short-tailed. If fur color is controlled by a single autosomal gene, and tail length by a single X-linked gene, what proportions of each of the eight possible phenotypic combination (sex/fur color/tail length) do you expect to see in offspring of a cross between an Fl female and a true-breeding brown-furred, long-tailed male? 1 of 1

Explanation / Answer

The mother's blood type is O, Rh+,MN while the child is B, Rh-,M.

Based on this information we can determine the mother's genotype as :

For O blood group= IoIo ; For Rh+= Rr (Since the child has rr) ; For MN=MN

The fathers genotype will be as follows:

For ABO blood group= IBIB OR IBIo, OR IAIB (Sinch the child has B blood group and the mother is O)

For Rh = Rr OR rr (Since the child has rr)

For MN Blood group = MN OR M (Sinch the child has M blood group and the mother is MN)

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