
Introduction:
Scientists Stanley miller and Harold Urey were the first to show that simple organic molecules could be made from inorganic compounds. Many experiments were conducted under conditions that were similar to atmosphere of early Earth. The final reaction products in these experiments were amino acids and sugars as well as

Answer to Problem 22A
Correct answer:
The correct answer is option C. providing a framework for amino acid chains
Explanation of Solution
Explanation/justification for the correct answer:
Option C. providing a framework for amino acid chains − Wherever the first organic molecules originated, it was clear that the next important step would be the formation of proteins. Amino acids alone cannot produce life. Life requires proteins which are chains of amino acids. Amino acids could bind to one another but they would easily separate too. One mechanism for formation of proteins would be if amino acids were bound by clay particles. Clay could provide a framework for protein assembly.
Hence this is the correct option.
Explanation for incorrect answer:
Option A. producing the first oxygen in the atmosphere −The cyanobacteria are primitive prokaryotes that are found in rocks as old as 3.5 billion years. They produced the first oxygen in the atmosphere. The clay particles could provide a framework for amino acids to form proteins.
Hence this is not the correct option.
Option B. forming the first plasma membranes- The clay particles could provide a framework for amino acids to form proteins. They did not form the first plasma membranes. Hence this is not the correct option.
Option D. capturing prokaryotes for chloroplast evolution − The clay particles could provide a framework for amino acids to form proteins. They did not capture prokaryotes for chloroplast evolution. Hence this is not the correct option.
Chapter 14 Solutions
Biology Illinois Edition (Glencoe Science)
Additional Science Textbook Solutions
Anatomy & Physiology (6th Edition)
The Cosmic Perspective (8th Edition)
Campbell Biology in Focus (2nd Edition)
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Biology: Life on Earth (11th Edition)
Microbiology: An Introduction
- There is a species of eagle, which lives in a tropical forest in Brazil. The alula pattern of its wings is determined by a single autosomal gene with four alleles that exhibit an unknown hierarchy of dominance. Genetic testing shows that individuals 1-1, 11-4, 11-7, III-1, and III-4 are each homozygous. How many possible genotypes among checkered eagles in the population?arrow_forwardwhat is this called?arrow_forwardcan you help me identify this it's based on onion rootarrow_forward
- Which evidence-based stress management techniques are most effective in reducing chronic stress and supporting college students’ academic success?arrow_forwardstudents in a science class investiged the conditions under which corn seeds would germinate most successfully. BAsed on the results which of these factors appears most important for successful corn seed germination.arrow_forwardI want to write the given physician orders in the kardex formarrow_forward
- Amino Acid Coclow TABle 3' Gly Phe Leu (G) (F) (L) 3- Val (V) Arg (R) Ser (S) Ala (A) Lys (K) CAG G Glu Asp (E) (D) Ser (S) CCCAGUCAGUCAGUCAG 0204 C U A G C Asn (N) G 4 A AGU C GU (5) AC C UGA A G5 C CUGACUGACUGACUGAC Thr (T) Met (M) lle £€ (1) U 4 G Tyr Σε (Y) U Cys (C) C A G Trp (W) 3' U C A Leu בוט His Pro (P) ££ (H) Gin (Q) Arg 흐름 (R) (L) Start Stop 8. Transcription and Translation Practice: (Video 10-1 and 10-2) A. Below is the sense strand of a DNA gene. Using the sense strand, create the antisense DNA strand and label the 5' and 3' ends. B. Use the antisense strand that you create in part A as a template to create the mRNA transcript of the gene and label the 5' and 3' ends. C. Translate the mRNA you produced in part B into the polypeptide sequence making sure to follow all the rules of translation. 5'-AGCATGACTAATAGTTGTTGAGCTGTC-3' (sense strand) 4arrow_forwardWhat is the structure and function of Eukaryotic cells, including their organelles? How are Eukaryotic cells different than Prokaryotic cells, in terms of evolution which form of the cell might have came first? How do Eukaryotic cells become malignant (cancerous)?arrow_forwardWhat are the roles of DNA and proteins inside of the cell? What are the building blocks or molecular components of the DNA and proteins? How are proteins produced within the cell? What connection is there between DNA, proteins, and the cell cycle? What is the relationship between DNA, proteins, and Cancer?arrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education





