<p>What are some strategies for solving 4 x 4 punnett squares without actually drawing them? Usually I don't even have enough space to draw one out, any tips would be appreciated.</p>
<p>remember 9 3 3 1</p>
<p>Dihybrid ratio=9:3:3:1.</p>
<p>Assume that the two characteristics being stuided are simply called 1 and 2. Then:</p>
<p>9=Dominant1, Dominant2
3=Dominant1, Recessive2
3=Recessive1, Dominant2
1=Recessive1, Dominant1</p>
<p>better to draw it out...there not difficult at all if u know what ur doing each time imo.</p>
<p>The ratio can only be 9:3:3:1 if the two organisms are heterozygus for the trait..</p>
<p>is that the genotypic ratio or phenotypic
wouldn't it be genotype?</p>