Genetic problems a researcher studying petunia plants. these plants have either red or white and this characteristic is influenced by one gene. the alleles are r red (red is dominant) and r white. she crosses to heterozygous red plant with a homozygous white plant. determine the expected genotypes and phenotypes of the offspring using the steps outlined above.

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time

Aplant may open end close its stomata to prevent excess water loss and maintain

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?