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Gene S controls the sharpness of spines in a type of cactus. Cactuses with the dominant allele, S, have sharp spines, whereas homozygous recessive ss cactuses have dull spines. At the same time, a second gene, N, determines whether cactuses have spines. Homozygous recessive nn cactuses have no spines at all17. A cross between a true-breeding sharp-spined cactus and a spineless cactus would produce a.all sharp-spined progenyb.50% sharp-spined, 50% dull-spined progenyc.25% sharp-spined, 50% dull-spined, 25% spineless progenyd.all spineless progenye.It is impossible to determine the phenotypes of the progeny

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Darwin put together several pieces of information when creating his theory of evolution. Which of the following is not part of the information?Organisms can be specifically adapted to the environments in which they liveIndividuals in a population can pass traits they acquire during their lives to their offspringpopulations produce more offspring than the environment can sustainwithin populations individuals can have variable phenotypes

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