Question

Punnett Squares, I will fan and medal!!! PLEASE HELP!
@hectoroftroy

Answer 1

What's the question? Please post it.

Answer 2

d is the one I did.

Answer 3

I know my punnett square was wrong. I was rushing just to show her THE BASICS of the format-able punnett square, thanks. I'd correct it if you wish, however, that wasn't the answer, just an example thanks.

Answer 4

Miss.Rose, D is correct. Well done!

Answer 5

But how do I answer the questions:
In this Punnett square, what is the ratio of homozygous to heterozygous offspring?



In the Punnett square, what percentage of the offspring are homozygous recessive?

Answer 6

Miss.Smartiez, it's not helpful to show people trying to figure out Punnett squares examples you know are wrong. Imo.

Answer 7

First of all, I was showing her how you shouldn't 'input' the left corner as any LETTER.

Answer 8

Miss.Rose, the heterozygotes are the ones with two different alleles (that is, a big T and a little t). The homozygotes are the ones with two same alleles (which could be both big TTs or both little tts.)

Answer 9

So, first try to figure out the whole picture before you 'drop' in and tell me what not to do.

Answer 10

I know that..

Answer 11

Want me to correct it?

Answer 12

So the question is asking about the tt offspring. The homozygous recessive.

Answer 13

* FACE PALM *

I told her this. 50%

4 squares correct.

Answer 14

There are two of those - both entries in the right hand column are tt offspring.

Answer 15

There are four total offspring - and two of them are tt homozygous recessive. It's asking you for the proportion of tt homozygous recessive out of all the possible offspring.

So it's 2 / 4 or 50%.

Answer 16

So the ratio is : 2:4?

Answer 17

Miss Rose, that is absolutely correct. :)

Answer 18

Can you help me with another punnet square?

Answer 19

Sure - please close this thread though and post it as a separate question.

Answer 20

Okay.