Aresearcher is studying linkage between singed bristles and vestigial wings, and conducted crosses between two different strains of fruit flies. when true-breeding flies with singed bristles (s) and normal wings (l) were crossed to true-breeding flies with normal bristles (s) and vestigial wings (l), all f1 offspring had normal wings and normal bristles. the f1 offspring were crossed to flies with singed bristles and vestigial wings. which f2 offspring is/are recombinant? a. singed bristles/vestigial wings onlyb. singed bristles/normal wings onlyc. singed bristles/normal wings and normal bristles/vestigial wingsd. singed bristles/vestigial wings and normal bristles/normal wings

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

Clues to ecological principles are given in numerous passages of the bible. a bible study of ecology actually opens the doors to better understanding of god's love and concern for the earth. use a concordance to locate bible passages associated with words concerning our stewardship of the earth. you may use a dictionary to find synonyms for these words: dominion replenish subdue judgment stewardship find each of the passages using these words related to principles of ecology. list all passages by quote, book, chapter, and verse under each word. use your own interpretation to rewrite what you think each verse is saying. after your discussion of each of these words, ask one other person to explain his understanding of the word and a related verse without any hints. summarize what he tells you. a concluding paragraph for each of the words should be written noting similarities and differences between your interpretation and that of each person consulted.

Amniocentesis is a process in which amniotic fluid is taken from the mother's womb to identify any genetic abnormalities in the fetus. how would the discovery of the human genome contribute to this process?