Answer;
The correct answer would be Rr.
In a monohybrid cross, the phenotype ratio of 3:1 is obtained only when both the parents are heterozygous for the trait.
In this condition, the heterozygous genotype would be Rr. The phenotype of both the parents would be round seeds (R) as the round is a dominant trait.
The cross of these parents would produce offspring with three types of genotypes RR, Rr, and rr in ratio 1:2:1.
Thus, the phenotypic ratio would come out to be 3 (round seed):1 (wrinkled seed).
<span>The rate of diffusion of a substance depends on four factors which are: temperature, concentration gradients, diffusion distance and the diffusion and host material. The rate of diffusion is affected by differences in concentration gradient; the higher the difference in concentration gradient, the higher the diffusion rate. Thus, small concentration gradient will not increase the rate of diffusion. The correct option is A.</span><span />
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