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Question 1. DNA replication is semiconservative. Which does this mean? Each new DNA double helix consists of two old strands. Each new DNA double helix consists of one old strand and one new strand. Each new DNA double helix contains 25% of the old DNA double helix. Each new DNA […]

Climate Change Response Some people you know say they don’t believe that the climate is changing. After this week’s readings, how would you respond? Write a 525- to 700-word response including: How scientists learn about past global temperatures and climates. The greenhouse effect. Greenhouse gases and their role in current climate […]

In Drosophila melanogaster the recessive w allele confers stripedwhen homozygous in females or hemizygous in males. The recessive vallele confers eyespot eye when homozygous in females or hemizygousin males. M and B formed some wild type females flutes thatconsistently produced offspring with a 2:1 female: male ratio andconcluded that the […]

Discussion: “Evolution of Animals and Population of Humans” Note: Online students, please respond to one of the following three bulleted items. • Read the New York Times article entitled “From Single Cells, a Vast Kingdom Arose” then provide a summary of the article. Next discuss what you believe to be […]