What Is Life? A Guide to Biology with Physiology
4th Edition
ISBN: 9781319065447
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 12, Problem 2MC
Summary Introduction
Introduction:
It would have been necessary for the first genetic material to carry information needed for replication, and simultaneously, be the machinery that carries out the process of replication.
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What Is Life? A Guide to Biology with Physiology
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- The diagram to the right shows how tiles can be put together in different ways. How does this example relate to the role of DNA as the universal genetic material in organisms?arrow_forwardWhich best describes a branch point in a phylogenetic tree? a. a hypothesis b. new lineage c. hybridization d. a matingarrow_forwardBy one hypothesis, clay________. a. facilitated assembly of early polypeptides b. was present at hydrothermal vents c. provided energy for early metabolism d. served as an early genomearrow_forward
- Which statement about analogies is correct? a. They occur only as errors. b. They are synonymous with homologous traits. c. They are derived by response to similar environmental pressures. d. They are a form of mutation.arrow_forwardWhich claim is BEST supported by the evidence provided? A. The calf and the salamander have the most similar DNA sequences. B. The chick and the tortoise have the most similar DNA sequences. C. The fish and the chick have the most similar DNA sequences. D. The pig and the tortoise have the most similar DNA sequences.arrow_forwardBIOLOGY 2 list down 10 products of genetic engineering and its uses.arrow_forward
- While how the first cells formed is still unknown, scientists suspect that the first active biological macromolecule wasa. protein.b. DNA.c. RNA.d. carbohydrates.arrow_forwardHow would the discovery of DNA and how DNA "works" have changed how scientists could research development?arrow_forwardWrite a scientific explanation about how mutations can have positive, negative, or neutral effects on an organism. See image attached.arrow_forward
- Which is true concerning how fossils are used as evidence? A. Fossils cannot be compared to one another but can be compared to living organisms. B. Fossils can be compared to one another but not to living organisms. C. Fossils cannot be compared to one another or to living organisms. D. Fossils can be compared to one another and to living organisms.arrow_forwardThe appendix, which is not needed to survive, is considered to be a? a. Homology b. Vestigial Structure c. Homologous Structure d. Analogous Structurearrow_forward50) Genetic engineering is considered the new ___________ revolution in microbiology. a) genetic b) evolutionary c) golden d) scientific .arrow_forward
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