Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 19, Problem 3SQ
Stanley Miller’s experiment demonstrated that__________
- a. Earth is more than 4 billion years old
- b. under some conditions, amino adds can assemble spontaneously
- c. oxygen is necessary for all life
- d. DNA is less stable than KM A
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Which result from the Miller and Urey experiment provides evidence that the molecules of life could have spontaneously been produced in the ancient Earth environment?
a
After their experiment, they produced DNA from amino acids.
b
They showed how DNA can be produced from simple molecules that included water, oxygen, carbohydrates, and lipids.
c
Their experiment produced amino acids—the building blocks of life—from chemicals that existed in the environment of ancient Earth.
d
Miller and Urey's experiment provided evidence that showed that although oxygen was lacking in the environment of ancient Earth, it could be readily made from the decomposition of rocks and minerals.
Scientists, who support the "early genetic material" hypotheses, believe this biological component was used by early organisms as genetic material.
a
lipids
b
DNA
c
RNA
d
sugars
Which of the following was likely MOST important for life to begin existing on Earth?
A.
sunlight
B.
DNA
C.
a source of oxygen
D.
a source of energy
Chapter 19 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 19 - According to the big bang theory, _______. a. the...Ch. 19 - An abundance of _______ in Earth's early...Ch. 19 - The Changing Earth Studies of ancient rocks and...Ch. 19 - Prob. 2DAACh. 19 - Prob. 3DAACh. 19 - Prob. 4DAACh. 19 - Stanley Millers experiment demonstrated...Ch. 19 - According to one hypothesis, negatively charged...Ch. 19 - The prevalence of _______ in living organisms is...Ch. 19 - Prob. 6SQ
Ch. 19 - Among prokaryotes, only the cyanobacteria _______....Ch. 19 - The evolution of _____ resulted in an increase in...Ch. 19 - Bacteria that cause the disease typhus arc close...Ch. 19 - Infoldings of the plasma membrane into the...Ch. 19 - Prob. 11SQCh. 19 - A stromatolite is a structure __________. a....Ch. 19 - Prob. 13SQCh. 19 - Evidence that Mars __________ suggests that it may...Ch. 19 - Chronologically arrange the evolutionary events,...Ch. 19 - Researchers looking for fossils or the earliest...Ch. 19 - The astronomer Carl Sagan once said, "We are made...Ch. 19 - How did the evolution of oxygen-releasing...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- The Miller experiment did not create life, nor did the gases used resemble Earth’s first atmosphere as we presently understand it. The experiment was important because it a. showed that complex organic molecules can form under a variety of circumstances. b. synthesized the carbon atom. c. produced a DNA by-product that eventually leads to RNA and other bases. d. produced RNA, which later formed proteins out of the amino acids. e. synthesized the four bases needed for the production of DNA.arrow_forwardThe Miller experiment created a. life. b. artificial proteins. c. DNA. d. simple molds. e. amino acids.arrow_forwardWhat was Oparin-Haldane hypothesis on the emergence of life on Earth? A. The Earth's amino acids were derived from volcanic eruptions B. The Earth's amino acids were from a 4.5 billion years old meteorite C. Inorganic compounds created organic compounds spontaneously D. Inorganic compounds were results of lightning and UV radiationarrow_forward
- The first forms of life on Earth were thought to be_____. a. single-celled plants b. prokaryotes c. insects d. large animals such as dinosaursarrow_forwardwhat simple organic molecules were likely the precursors of life? a. water and proteins b. amino acids and nucleotides c. oxygen and carbon d. prokaryotes and eukaryotesarrow_forwardMany scientists think that _______________ was the first information molecule to evolve. (a) DNA (b) RNA (c) a protein (d) an amino acid (e) a lipidarrow_forward
- Which event contradicts the central dogma of molecular biology? a. Poly-A polymerase enzymes process mRNA in the nucleus. b. Endonuclease enzymes splice out and repair damaged DNA. c. Scientists use reverse transcriptase enzymes to make DNA from RNA. d. Codons specifying amino acids are degenerate and universal.arrow_forwardThe molecule DNA is important to biological systems because a. it can be replicated. b. it encodes the information for making a new individual. c. it forms a complex, double-helical structure. d. nucleotides form genes.arrow_forwardThe first forms of life on Earth were thought to be_________. a. single-celled plants b. prokaryotes c. insects d. large animals such as dinosaursarrow_forward
- The Miller experiment consisted of various gases, believed to have been present in the early atmosphere of Earth, exposed to an electrical arc. This experiment resulted in a. nothing. b. carbon dioxide gas and water vapor. c. amino acids. d. rain.arrow_forwardThe information a cell needs to function is found on the DNA molecule in the form of a. multiple combinations of unknown chemicals. b. RNA subgroups. c. a spiral helix. d. four bases and the order in which they appear.arrow_forwardWhich of the following are reasons why ribozymes are though to be the first molecules in the original forms of life? a. They can do molecular work b. They can self propagate c. They can create DNA d. Both a. and b. e. Both a. and c.arrow_forward
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