What is the genotype ratio of the offspring?

Biology
Tutor: None Selected Time limit: 1 Day

Punnett Square  Rr x Rr

     R      r

R   RR   Rr

r  Rr       rr

Jun 16th, 2015

Thank you for the opportunity to help you with your question!

Hi, Apo :) 

So, as we know, the genotype is the physical "gene" i.e. AA Aa or aa

You did a great job with your punnet square! So when we look at the punnet square you made, the genotype  would be 1:2:1. 1 RR, 2 Rr and 1 rr 

Genotypes are always expressed Dominant homozygous: Dominant heterozygous: recessive homozygous. Let me know if you have any questions! 

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 16th, 2015

So would the phenotype be, 1:2:1 as well?

Jun 16th, 2015

No, since the 2 Rr would appear dominant (phenotype is appearance - i/e: purple), the phenotype would be 3 dominant trait and 1 recessive (3:1) 

Jun 16th, 2015
Thank you! Someone had answered it before but i could never get it right with my punnett square. Thanks again!
Jun 16th, 2015

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