Compare and contrast phenotype and genotype

Round peas are dominant to wrinkled. what would you cross a round pea with to determine if it were heterozygous or homozygous dominant? why? ?

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

Which statement names a physical property of wood? wood does not rustwood can burnwood can rotwood is softer than coal