<span>This occurs when the cytoplasm is replaced by hard keratin over time as the skin changes, this is what results in the scale like patterns that are observed.</span>
Mutation is a source but it is not the main source after it comes recombination in which 2 chromosomes with “normal” survival are taken from natural population of Drosophila and combined. Then comes immigration of genes in which the new chromosome mix in with different gene frequencies.
Answer:
The answer is Egg cell. Only germinal cells can transmit mutations to the offspring
Answer: sympathetic nervous system prepares body for intense physical activity and known as flight or fight response whereas parasympathetic nervous system is almost the opposite, it relaxes the body and slows many human functions
Explanation:
The nucleus is an organelle found in eukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material. This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.