Isotonic Solution
This solution is basically when the medium surrounding a cell has same water concentration as the cell, there is no net movement of water across the cell membrane. As a result the water moves equally in both sides and the cell remains the same size.
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The answer is rr. In a monohybrid cross, the phenotypic ratio is 3:1 for
dominant trait to recessive trait. Since the ration is 3:1 for round
seeds to wrinkled seeds, we can conclude that round seed is the dominant
trait. Let R be a dominant allele for round seed and r be a recessive
allele for wrinkled seed. The genotypes will be: RR (dominant homozygote
with round seeds), Rr (heterozygote with round seeds), and rr
(recessive homozygote with wrinkled seeds. Thus, only genotype rr is the
genotype of the wrinkled seeds.
Answer: map
Explanation: I say its map because a map represents the entire earth