If $YYRR$ represents round and yellow seeds,what do the following genotypes represent?
$yyrr$ $\quad$ $yyRR$

(N/A) $yyrr$ represents wrinkled and green seeds.
$yyRR$ represents wrinkled and yellow seeds.
Explanation: In pea plants,the allele for round shape $(R)$ is dominant over wrinkled $(r)$,and the allele for yellow color $(Y)$ is dominant over green $(y)$. Therefore,$yyrr$ (homozygous recessive) results in wrinkled and green seeds,while $yyRR$ (homozygous recessive for shape,homozygous dominant for color) results in wrinkled and yellow seeds.