Funny! I am doing the same thing. Maybe we can help eachother
Karyotyping. The karyotype is a picture of all of the chromosomes of a cell's nucleus, collected during amniocentesis. Chromosome duplications and abnormalities can be seen.
Answer:
The yellow leaf was not exposed to the sun so it can't produce sugar.
Explanation:
The yellow region of the leaf didn't produce sugar because it wasn't exposed to sunlight. Part of the leaf was exposed to the sun, thus this leaf produced sugar, while the yellow part of the leaf did not because it was not exposed to the sunlight.