Crosses of pure-breeding lines can result in progeny phenotypes that don't appear to follow mendel's rules. explanations for this include:
a) no definitively dominant or recessive allele
b) more than two alleles exist
c) multiple genes involved
d) gene-environment interactions

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

Which ocean is on the eastern coast of north and south america? arctic ocean indian ocean pacific ocean atlantic ocean

What materials must dams have to produce electricity, and what must occur?