That a person is heterozygous for a certain trait. Rr=heterozygous and RR= homozygous. You can remember this because Hetero= different and homo= same
Answer:
c. The ultimate source of new alleles is mutation, random changes in the nucleotide sequences of an organism's DNA
Explanation:
Mutations are changes in DNA sequence that can create genetic variation within the population. Mutations are important for evolution because of their ability to form a new genetic variant (allele) that can be spread to the offspring. If a new variant of a trait formed by a mutation is advantageous and helps the organism to survive and reproduce, it is going to be favourable by natural selection. That variation will more likely be passed to the next generation and remain over time.
Answer:
Its mucus
Explanation:
Mucus is what makes a frog feel slippery or slimy. Frogs don't drink water, instead they absorb it through their skin. Frogs also use their skin to breathe. A layer of mucus on the skin helps keep moisture trapped next to it, and this moisture transfers oxygen into the frog's body.
<span>Based on the description, i think the moth is exhibiting: A. Taxis behavior
Taxis is a movement made by organisms that carried out as a response to light. A moth naturally moved between the moonlight as a form of camouflage mechanism to avoid predators. But they often confused man-made light such as lamp as moonlight, which make them gather around it every time we turn on a light in dark time</span><span />