Predict how many double helical molecules of dna will be present in the gametes of the fruit fly, drosophila, a diploid organism that has eight replicated chromosomes in each cell that enters meiosis.

The answer is a four double-helical molecules of DNA, which correspond to four unreplicated chromosomes. There will be four DNA molecules in to each gamete because the 8 replicated chromosomes in a diploid cell are compacted to 4 replicated chromosomes each cell at the closing of meiosis I. In meiosis II, the fellow chromatids of every replicated chromosome are disjointed. Each cell now comprises 4 unreplicated chromosomes, respectively with a single molecule of DNA. 

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.

carbon

explanation: