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[Waki]

Bip

[ryunosuke akutagawa]

TYPE OF QUESTION: Science (Biology, I think)
YOUR QUESTION: Red-green colour blindness is caused by a recessive sex chromosome (e.g. XʰY). Grandfather is colourblind. Grandmother had no history of colour blindness in her family and their son is not colourblind. What percentage of their children might be colourblind? Their daughter has married another colourblind man. They have a baby boy. What percentage of their baby boy being colourblind?

[okay, i think i remembered the question correctly. if i typed out the whole question right, my answer was 0% and 50%, apparently it is wrong.]
[and this is my brother's question btw, just curious about the correct answer.]

[WastedSpace]

-removed, please see the post below mine for the correct square!-

[Munin]

TYPE OF QUESTION: Science (Biology, I think)
YOUR QUESTION: Red-green colour blindness is caused by a recessive sex chromosome (e.g. XʰY). Grandfather is colourblind. Grandmother had no history of colour blindness in her family and their son is not colourblind. What percentage of their children might be colourblind? Their daughter has married another colourblind man. They have a baby boy. What percentage of their baby boy being colourblind?

[okay, i think i remembered the question correctly. if i typed out the whole question right, my answer was 0% and 50%, apparently it is wrong.]
[and this is my brother's question btw, just curious about the correct answer.]

Hm... I mean I got 0% and 50% as well. Could we have the correct answer that your brother got?

Let H represent non-colourblind allele. Let h represent colourblind allele.

Grandma = XᵸXᵸ

(no history of colourblind + their son is not colourblind so she cannot carry the colourblind allele; If she did any boys they had would HAVE to be XʰY. Feel free to ask for more explanation on this is this doesn't make sense)

Grandpa = XʰY

Punnett square it so it'd look something like:
__|_Xᵸ|Xᵸ_
Xʰ|XᵸXʰ|XᵸXʰ
Y|_XᵸY|XᵸY_

If this is the case, any sons they have will not be colourblind(checks out with the question) but any daughters they have will be carriers of the colourblind gene.


So now their daughter(has to be XᵸXʰ/carrier) is married with a colourblind man(XʰY).
Punnett square it:
__|_Xᵸ|Xʰ_
Xʰ|XᵸXʰ|XʰXʰ
Y|_XᵸY|XʰY_

50% to have a son, 50% of the son being colourblind. Unless they mean 25% of having a son that is colourblind including the chances of having daughters?

I'm not sure how you got 1/4 chance for the colourblind child Wastedspace?
Grandpa has to pass on the Y gene to the sons and grandma doesn't carry the colourblind gene so none of their sons will have it.
Then because the trait is recessive, grandma passes on no colourblind, grandpa passes on the colourblind and their daughters will be carriers.

Feel free to add on anyone owo

[WastedSpace]

I'm not sure how you got 1/4 chance for the colourblind child Wastedspace?

Lmao, as I said, it's been a while! That's why I asked someone to double check me!

As you can see from my Punnett Square, I set it up wrong. Instead of making one parent the rows and one parent the columns, I split up each parent to have one allele in both column and row. xP

Thanks for the double check. Just gonna go edit/delete my post since it's misleading and wrong. ^^;;

[ryunosuke akutagawa]

TYPE OF QUESTION: Science (Biology, I think)
YOUR QUESTION: Red-green colour blindness is caused by a recessive sex chromosome (e.g. XʰY). Grandfather is colourblind. Grandmother had no history of colour blindness in her family and their son is not colourblind. What percentage of their children might be colourblind? Their daughter has married another colourblind man. They have a baby boy. What percentage of their baby boy being colourblind?

[okay, i think i remembered the question correctly. if i typed out the whole question right, my answer was 0% and 50%, apparently it is wrong.]
[and this is my brother's question btw, just curious about the correct answer.]

Hm... I mean I got 0% and 50% as well. Could we have the correct answer that your brother got?

Let H represent non-colourblind allele. Let h represent colourblind allele.

Grandma = XᵸXᵸ

(no history of colourblind + their son is not colourblind so she cannot carry the colourblind allele; If she did any boys they had would HAVE to be XʰY. Feel free to ask for more explanation on this is this doesn't make sense)

Grandpa = XʰY

Punnett square it so it'd look something like:
__|_Xᵸ|Xᵸ_
Xʰ|XᵸXʰ|XᵸXʰ
Y|_XᵸY|XᵸY_

If this is the case, any sons they have will not be colourblind(checks out with the question) but any daughters they have will be carriers of the colourblind gene.


So now their daughter(has to be XᵸXʰ/carrier) is married with a colourblind man(XʰY).
Punnett square it:
__|_Xᵸ|Xʰ_
Xʰ|XᵸXʰ|XʰXʰ
Y|_XᵸY|XʰY_

50% to have a son, 50% of the son being colourblind. Unless they mean 25% of having a son that is colourblind including the chances of having daughters?

I'm not sure how you got 1/4 chance for the colourblind child Wastedspace?
Grandpa has to pass on the Y gene to the sons and grandma doesn't carry the colourblind gene so none of their sons will have it.
Then because the trait is recessive, grandma passes on no colourblind, grandpa passes on the colourblind and their daughters will be carriers.

Feel free to add on anyone owo

thanks! sorry for the late reply, wanted to edit my first post since it did have some of mistakes, so here's the correct question xp

"Red-green colour blindness is caused by a recessive sex chromosome (e.g. XʰY). Grandfather is colourblind. Grandmother had no history of colour blindness in her family and their son is not colourblind. What percentage of their children might be colourblind? Their daughter has married another colourblind man. What percentage of their kids being colourblind?"

and i'm sure there's not really much of a difference. xp and it seems that the quiz had some error so it's actually correct. xp sorry for the inconvenience. :v

[K0Z1]

TYPE OF QUESTION: Math
YOUR QUESTION:
Solve the system of equations.
​​
​−5x+2y=9
​y=7x
​​
x=
y=

[Thalassic]

TYPE OF QUESTION: Math
YOUR QUESTION:
Solve the system of equations.
​​
​−5x+2y=9
​y=7x
​​
x=
y=

replace the y in your equation with the 7x
-5x+2(7x)=9
-5x+14x=9
14x-5x=9
9x=9 (divide both sides by 9)
x=1

go back to the y=7x and put in your new found x
y=7*1
y=7

You can check it if you like
-5*1+2*7=9
-5+14=9

The equation is correct, so the answers are
x=1
y=7

[Rabbitses]

TYPE OF QUESTION: Math
YOUR QUESTION:
Solve the system of equations.
​​
​−5x+2y=9
​y=7x
​​
x=
y=

Other way of doing this.
Line the equations up making the order of variables the same.
​−5x+2y=9
-7x+y=0
Find a way to cancel out one of the variables. In this case, we will multiply the second equation by -2. Now it is 14x-2y=0 Then add the two equations together.
​−5x+2y=9
+
14x-2y=0
9x=9........................... Now solve for x. X=1
Now put that back into one of the original equations, and solve for the other variable.
​−5x+2y=9
​−5(1)+2y=9
-5+2y=9
2y=14
y=7
You can check it the same way Cataclasm did. This method is useful for these types of problems once they get more complicated.

[Miavinn]

I HAVE A QUESTION!
TYPE OF QUESTION: English - argumentative essay
YOUR QUESTION: Essay question is "Should vaccinations be mandatory for the good of all people?" My answer is yes, they should be mandatory; what are some reasons as to why they should be mandatory? Or benefits of being mandatory?