[nabs-l] punnett squares

[josh gregory]

Or just ask them to braille them out for you, that's what was done for
me. Took a while for me to get it, but I think the teacher said I was
one of the few that actually got the concept. Btw, brings back
memories, Ashley. :)

On 2/27/12, Ashley Bramlett <bookwormahb at earthlink.net> wrote:
> Hi,
> You cannot do punnet squares in a linear form on a braille note. Use a
> brailler; yes do them on graph paper or make the  squares tactilly somehow.
> I used large print. But same concepts apply. Punnet squares are a grid of
> squares. So picture a small table.
> I believe they are two rows, two colums as  I recall. You put two
> letters in each square to represent genes.
> I really hope I explain the representation right as its been years since bio
> for me.
> If you bring two of the same letters together, its homozygous. Note the
> capital or lowercase letters as I write.
> Capitals are dominant and lower case are recessive.
> Example:  bb for recessive brown eyes.
> Example B B for dominant blue eyes.
>
> If you have different case of letters, its hetro zygous.
> You look at the top letter and letter on the side to put the letters in the
> square. For instance a Large P for dominant gene on top and on the side a
> small O for recessive gene. So you write P O in the block.
> Quite hard to explain without showing you. I suggest you ask your teachers
> for clarification.
>
> This video might help; maybe if you watch it with a sighted person they can
> help you understand it.
> http://www.youtube.com/watch?v=J8SQAiVWw_s
>
> Ashley
> -----Original Message-----
> From: vejas
> Sent: Monday, February 27, 2012 7:08 PM
> To: nabs-l at nfbnet.org
> Subject: [nabs-l] punnett squares
>
> Hi,
> I am really, really, really confused with Punnett squares.  So I
> have some questions about them.
>
> First, to make them, should I use a Perkins Brailler? I do all my
> other science work, as well as for my other subjects except math
> homework, on my Braille-Note Apex.  Would a Perkins Brailler be
> better?
> Also, do you hand-make the grids? I have some graph paper from
> math that I might be able to use, but hand-making them might be
> easier.
> So can you please explain how to make a Punnett? Also, it would
> really help if you could additionally tell me how you learned
> Punnett squares because I'm really confused.
> Thank you for your time.  Attached to this email is a copy of the
> questions from the worksheet that I am supposed to do for
> homework.  Ignore Problem 10 and any others that you don't have
> to solve.
> Sincerely,
>
> Vejas
>
>
>
>
>
>
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