Concept explainers
Introduction:
“Biomarkers” are the chemical remains of the ancient organisms embedded in rocks. They are useful for the analysis and composition of the remains of the organisms prevent in the evolutionary history of the organism.

Answer to Problem 1U
Correct answer:
“Biomarkers” are the chemical substances found in the ancient remains of the organisms which are helpful in the analysis of the remains of the organisms in the evolutionary history. Therefore, option b. is correct.
Explanation of Solution
Reason for the correct statement:
Biomarkers help in the study of the imprint of the remains of the organisms present in the rocks. They help in the deciphering of the chemical structure and composition of the remnants of the organisms. They are present like an imprint on the rocks and are embedded inside them in a specific pattern.
Option b. is given as “A hydrocarbon found in an ancient rock layer”.
As, “biomarkers are the chemical substances present in the ancient layer of the rocks and helps in determining the structure of the ancient remains of the organisms” is the right answer.
Hence, the option b. is correct.
Reasons for the incorrect statements:
Option a. is given as “A microfossil found in a meteorite”. The meteorite consists of the rocky mineral material from the outer space world in the universe. So, it is the wrong answer.
Option c. is given as “An area that is high in carbon-12 concentration in a rock layer”. The radioactive dating of carbon-12 is done in the ancient layer of the rocks for analyzing the age of the fossil records. So, it is a wrong answer.
Option d. is given as “A newly discovered formation of stromatolites”. The stromatolites are the ancient fossil records of the cyanobacteria in the ancient rocks. So, it is a wrong answer.
Hence, options a., c., and d. are incorrect.
Biomarkers are the ancient imprint of the primitive organisms in the rock layers. They help in the deciphering of the structure and composition of the fossils.
Want to see more full solutions like this?
Chapter 28 Solutions
BIO 1406/07 W/CONNECT/LM NEW >IC<
- AaBbCc X AaBbCc individuals are crossed. What is the probability of their offspring having a genotype AABBCC?arrow_forwardcircle a nucleotide in the imagearrow_forward"One of the symmetry breaking events in mouse gastrulation requires the amplification of Nodal on the side of the embryo opposite to the Anterior Visceral Endoderm (AVE). Describe one way by which Nodal gets amplified in this region." My understanding of this is that there are a few ways nodal is amplified though I'm not sure if this is specifically occurs on the opposite side of the AVE. 1. pronodal cleaved by protease -> active nodal 2. Nodal -> BMP4 -> Wnt-> nodal 3. Nodal-> Nodal, Fox1 binding site 4. BMP4 on outside-> nodal Are all of these occuring opposite to AVE?arrow_forward
- If four babies are born on a given day What is the chance all four will be girls? Use genetics lawsarrow_forwardExplain each punnet square results (genotypes and probabilities)arrow_forwardGive the terminal regression line equation and R or R2 value: Give the x axis (name and units, if any) of the terminal line: Give the y axis (name and units, if any) of the terminal line: Give the first residual regression line equation and R or R2 value: Give the x axis (name and units, if any) of the first residual line : Give the y axis (name and units, if any) of the first residual line: Give the second residual regression line equation and R or R2 value: Give the x axis (name and units, if any) of the second residual line: Give the y axis (name and units, if any) of the second residual line: a) B1 Solution b) B2 c)hybrid rate constant (λ1) d)hybrid rate constant (λ2) e) ka f) t1/2,absorb g) t1/2, dist h) t1/2, elim i)apparent central compartment volume (V1,app) j) total AUC (short cut method) k) apparent volume of distribution based on AUC (VAUC,app) l)apparent clearance (CLapp) m) absolute bioavailability of oral route (need AUCiv…arrow_forward
- You inject morpholino oligonucleotides that inhibit the translation of follistatin, chordin, and noggin (FCN) at the 1 cell stage of a frog embryo. What is the effect on neurulation in the resulting embryo? Propose an experiment that would rescue an embryo injected with FCN morpholinos.arrow_forwardParticipants will be asked to create a meme regarding a topic relevant to the department of Geography, Geomatics, and Environmental Studies. Prompt: Using an online art style of your choice, please make a meme related to the study of Geography, Environment, or Geomatics.arrow_forwardPlekhg5 functions in bottle cell formation, and Shroom3 functions in neural plate closure, yet the phenotype of injecting mRNA of each into the animal pole of a fertilized egg is very similar. What is the phenotype, and why is the phenotype so similar? Is the phenotype going to be that there is a disruption of the formation of the neural tube for both of these because bottle cell formation is necessary for the neural plate to fold in forming the neural tube and Shroom3 is further needed to close the neural plate? So since both Plekhg5 and Shroom3 are used in forming the neural tube, injecting the mRNA will just lead to neural tube deformity?arrow_forward
- Basic Clinical Lab Competencies for Respiratory C...NursingISBN:9781285244662Author:WhitePublisher:CengageEssentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:CengageBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
- Comprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage LearningMedical Terminology for Health Professions, Spira...Health & NutritionISBN:9781305634350Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. SchroederPublisher:Cengage Learning


