3. Hemophilia and color-blindness in humans are both determined by recessive all

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3. Hemophilia and color-blindness in humans are both determined by recessive alleles at different loci on the X-chromosome. A pedigree showing the inheritance of these traits is shown below: = hemophilia = colorblind - hemophilia & colorblind 2 4 Fill in the genotypes of the following individuals in the pedigree for BOTH the hemophilia and colorblind loci: (1 pt. total) a. 1-2 1-6 h For individual II-1, draw her two X-chromosomes, indicating which alleles of each of the two genes are on each (0.5 pts.). b. c. Which individuals of the third generation (III) are: (0.5 pt.). Recombinants?-6 Unable to be determined: -1 u-6Parentals:Ill-2l7 d. Suppose the hemophilia and the colorblind loci are 32 map units apart on the X chromosome. If individuals I1-1 and II-2 have an eighth child, what is the probability... (0.5 pts.) i. If it is a son, that it has hemophilia and is colorblind? ii. If it is a daughter, that it is a carrier for hemophilia and is colorblind?

Explanation / Answer

if its a son he may just be a carrier for haemophilia and will nt be colourblind

but if it a daughter she will be haemophiliac for sure and may not be colourblind

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