Which represents the cross between parent plants if one is heterzygous and has yellow-colored pods and the other is homzygous and has green-colored pods? Yy ´ yy
YY ´ yy
Yy ´ Yy
yy ´ yy

The cross between parent plants if one is heterozygous and has yellow-colored pods and the other is homzygous and has green-colored pods -  Yy yy

Purebred genotype:

Thus, the cross would be -  Yy yy

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Its the first one

Yy is yellow (dominant) and heterozygous

yy is green (recessive)

with Yy and yy, you could only get 50% Yy(yellow) and 50% yy(green).  There is no way to make only yy or YY, and in order to make 100% Yy you would need one yy and one Yy

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.