genetic problem help needed

[bercikjl]

1. what is inheritance pattern for blue shading ?

2.why is it that inheritance pattern?

3. what is the risk that the baby which will born will have that condition ?

4.if person iii5 and iii6 will produce off spring what will be the percentage chance that will be inheriting from the condition ( blue)?

5.if the person iii7 marries a women who is the carrier for an x-linked recessive condition caused by point mutation. what are the ways in which novel point mutation might arise ??

did anyone can help me with that please ??

Edited July 2, 2015 by bercikjl

[fiveworlds]

Lets see the top male and female are deceased. The female of the next couple appears normal but the male definitely has the gene. That couple had four offspring two males and two females. One female appears to have the gene. That female's son also has the gene. The blue gene is most likely recessive but it is impossible to tell on such a small scale.

[bercikjl]

it looks like autosomal recessive but i wasnt sure how about other question have you got any idea ??

[fiveworlds]

It can't be dominant because of the genders of the group of four

Edited July 1, 2015 by fiveworlds

[bercikjl]

thanks how about other questions ??

[fiveworlds]

3. what is the risk that the baby which will born will have that condition ?

 

Because the gene is recessive it will be passed on. If the parent was blue.

 

.if person iii5 and iii6

 

Who is ii5 and ii6??

[bercikjl]

3. what will be the procentage chance of the risk ??

4 individual iii.5 and iii.6 from the pedigree

[fiveworlds]

what will be the procentage chance of the risk ??

 

100(1 blue parent)

50(2 recessive parents)

25(1 recessive parent)

???(red)

 

individual iii.5 and iii.6 from the pedigree

 

Which tells me nothing. There is no convention on iii. number . I will assume it is row 3 from the top person 5 and 6 counting from the left but they don't exist. Row 3 has 4 people.

Edited July 1, 2015 by fiveworlds

[bercikjl]

i edited the pedigree on top of the page

[fiveworlds]

.if person iii5 and iii6 will produce off spring what will be the percentage chance that will be inheriting from the condition ( blue)?

 

25 or 50 % depending on the guy

 

 

if the person iii7 marries a women who is the carrier for an x-linked recessive condition caused by point mutation. what are the ways in which novel point mutation might arise ??

 

It can only arise in the male offspring of the first generation. After that it is only possible for the condition to arise in future female offspring if they reproduce with a man who also has the gene. The men may still inherit the mutagen but if they do have the mutagen it should be easy to tell.

Edited July 2, 2015 by fiveworlds

[bercikjl]

100(1 blue parent)

50(2 recessive parents)

25(1 recessive parent)

???(red)

 

 

coming to that question so the answer for that will 25% im right ??

[fiveworlds]

coming to that question so the answer for that will 25% im right ??

 

If the man has the recessive gene there would be a 50% chance that the condition would manifest. Else there is a 100% chance of being a carrier without the condition manifesting.

Edited July 2, 2015 by fiveworlds

[bercikjl]

25 or 50 % depending on the guy

 

 

coming back to the question 4 that percentage will be more likely 25 or 50 %

[fiveworlds]

coming back to the question 4 that percentage will be more likely 25 or 50 %

 

you know the woman definitely has 1 recessive gene. But you don't know if the guy has the gene or not. So it is 50 - 75 %

Edited July 2, 2015 by fiveworlds

[hypervalent_iodine]

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