Letter A is the answer.
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C active tranport i think
Answer:1.Yellow color will be dominant and the ratio is Yellow to green allele is 3:1
2.A recessive test cross should be appropriate.The result will be all yellow colored pea plants.
Explanation:
Since Yy x Yy produces
1YY,2Yy and 1yy then it shows that YY and Yy are 3 yellow pea plants and 1yy green pea plant.
A recessive test cross should be used because a recessive genotype being homozygous can be noticed by its physical appearance
"Their habitats may range from the surface water to the ocean trenches. Marine organisms are classified<span> by how they move and where they live."
Hope This somehow helps~
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