In pea plants purple flowers are dominant to white flowers. What parental genotypes would produce offspring that are all heterozygous for the purple trait? Use a Punnett square to help you solve.

Which of the following elements does soil need in the largest quantities to sustain plant life? a. copper b. iron c. nitrogen d. zinc

Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.

What maintain homeostasis when a persons internal body temperature is 97.5°f