In maize (corn) plants, a dominant allele I inhibits kernel color, while the recessive allele i permits color when homozygous. At a different locus, the dominant allele P causes purple kernel color, while the homozygous recessive genotype pp causes red kernels. If plants heterozygous at both loci are crossed, what will be the phenotypic ratio of the offspring?

Video transcript

Hello everyone here we have a question telling us that a dominant a little capital I inhibits colonel color in maize corn plants. Whereas the recitals five. A little lower case. I allows color at one locus. Purple kernel color is caused by the dominant a little capital P. Whereas red colonel color is caused by the recess of a little lower case P. At a different locus. What will the fanatic ratio of the offspring be if two maize plants that are heterocyclic at too low guy are crossed. So our gang meets our capital. P. Capital I capital P. Lower case. I lower case. P. Capital I lower case. P. Lower case I. Capital P. Capital I capital P. Lower case I lower case. P. Capital I lower case. P. Lower case I. So now we're going to make our punnett square. So our first one with the capital P. Capital P. Capital I capital I. Our second one would be capital P capital P capital I lowercase I. Our third one would be capital P. Lowercase P. Capital I capital I. Our fourth would be capital P. Lowercase P. Capital I lowercase I. Then we have capital P. Capital P. Capital I lowercase I capital P capital P. Lowercase I lowercase I capital P. Lowercase P capital I lowercase I capital P. Lower case P. Lower case. I lower case I capital P. Lowercase P. Capital I capital I capital P. Lowercase P capital I. Lowercase I. Lower case P. Lower case. P capital I capital I. Lower case. P. Lower case. P. Capital I lowercase I capital P. Lowercase P. Capital I lowercase I capital P. Lower case. P. Lower case I lower case I lower case. P. Lower case P capital I lowercase I lower case. P. Lower case P. Lower case I lower case I. So We would have 12 colorless three purple color and one red color, which is lower case. P. Lower case. P. Lower case. I lower case I. Our purple color and our red color. So our answer here is D. Colorless Colonel equals 12. Red color colonel equals one and purple color equals three. Thank you for watching. Bye.