This is assignment given by a lecturer to a friend. Please medical nairalanders should help out.



On wednesday, an assignment was given on BIO 101, the following is the question.

*A phenotipically normal male married an affected and they *begat* *an affected daughter and an affected son. The affected daughter married a normal male and begat two normal sons, an affected daughter and a normal female.* *Similarly, the affected son married a normal female and begat an affected son and a normal daughter. The affected son (G3) married the normal first cousin and they gave birth to six children, two normal daughters, two affected daughters, an affected son and a normal son.*

I. Draw the pedigree chat
II. what's the pattern of inheritance? I.e. is the gene responsible autosomal or sex-linked
III. Is the gene dominant or recessive? Give reasons
IV. if the gene manifesting is C, such that C- is affected, what are the genotypes of I, II, II ~3, III ~4, III ~5, and IV ~2

Key: ~ = sub-script

To be submitted to the Course Rep,@Usman O'24 before 11:00 AM on Wednesday, 24th April 2019

hmmm,to my own understanding about genetics,i think d way ur lecturer presented his/her question is not correct.

In genetics,If a d father is affected,dat means d offspring dat will either b affected or b a carrier is d female and also if d mother is affected of a carrier,d offspring dat is likely to b affected is d male.

And so d question ur lecturer gave do not tally with wot dey begat or may der might b d error is either from u(typing error) or d lecturer.

Dr. Ejere assignment?
Won't it be better you meet someone in school, preferably those ahead of you... I'm sure someone in your class must have done it bro/sis

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sammy99:
hmmm,to my own understanding about genetics,i think d way ur lecturer presented his/her question is not correct.

In genetics,If a d father is affected,dat means d offspring dat will either b affected or b a carrier is d female and also if d mother is affected of a carrier,d offspring dat is likely to b affected is d male.

And so d question ur lecturer gave do not tally with wot dey begat or may der might b d error is either from u(typing error) or d lecturer.

Broo.... Not all heritable diseases are sex-linked. The lecturer dey alright.