Most of the bacteria that live in and on your body are:
a. chemoautotrophs.
b. photoautotrophs.
c. chemoorganotrophs.
Ans: c. chemoorganotrophs.
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Which is easier to establish in a pure-breeding
population, a dominant or a recessive gene? What will be an ideal response?
Genes in the NK4 class are involved in heart development in both vertebrates and fruit flies. They are also involved in the development of pumping organs in organisms that lack a heart, such as roundworms and cnidarians
Available information suggests that in early animals, the ancestral NK4 gene and its associated regulatory network ________. A) evolved convergently in vertebrates and arthropods B) were important in the development of the heart and blood vessels C) evolved by duplication of the Hox cluster D) governed the development of some fluid-filled pumping structure E) did not have any function
In a transduction experiment, what would constitute evidence of linkage?
What will be an ideal response?
©McGraw-Hill EducationBased on the phylogeny shown, indicate the groups that are monophyletic (Select all that apply).
A. rose and oak B. Psaronius, fern, pine, ginkgo, oak, and rose C. fern, pine, and ginkgo D. pine, ginkgo, oak, and rose