Bio 206 - Study guides, Class notes & Summaries

Which of the following is a tenet of the Cell Theory? 1) All organisms are composed of one or more cells. 2) The cell is the structural unit of life. 3) Cells can arise only by division from a preexisting cell. 4) Cells divide only by fission. 1,2,3 What characteristics distinguish prokaryotic and eukaryotic cells? 1) Eukaryotes have membrane-bound organelles; prokaryotes do not. 2) Prokaryotes have relatively little DNA; eukaryotes generally have much more. 3) Eukaryotic chromoso...

BIO206 Final Exam; Questions and Answers 100% Correct Homoplasy Correct answer-A similar (analogous) structure or molecular sequence that has evolved independently in two species. Problems with Homoplasy Correct answer-It can create an unpredictable gain or loss of a specific trait over time and during the evolution of new species Slowly evolving genes Correct answer-Useful for distantly related species Rapidly evolving species Correct answer-useful for closely related species Most us...

BIO206 Exam (Molecular Biology at UTM); Questions and Answers 100% Correct Transcription Correct answer-segments of the DNA sequence are used as templates for the synthesis of shorter molecules of the closely related polymer ribonucleic acid or DNA Gene Correct answer-The segment of DNA sequence corresponding to a single protein or set of alternative protein variants or to a single catalytic, regulatory or structural RNA molecule. Transport protein Correct answer-determines which molecu...

BIO 120 Skeletal System QUESTIONS WITH DETAILED VERIFIED ANSWERS | A+ GRADE ASSURED How many bones are in the body? 206 bones axial skeleton long axis (skull, vertebral column, rib cage) appendicular skeleton bones of the shoulder, pelvis, and upper and lower extremities What is the purpose of the axial skeleton? Protection of internal organs; supports and carries other body parts What is the purpose of the appendicular skeleton? Involved in locomotion and manipulation of the environment...

BIOE 206 Exam 1; Questions and Answers 100% Correct Plasmid DNA purification steps Correct answer-1. grow the bacteria with the plasmid 2. centrifuge 3. remove supernatant 4. resuspend pellet in lysis buffer (detergents and high salt) 5. neutralize the lysis buffer 6. spin down to remove debris and genomic DNA 7. put the suspension on a spin column 8. plasmid DNA will adhere to spin column and everything else will be washed away with high salt buffers 9. add low salt buffer to remo...

BIO206 Exam; Questions and Answers 100% Correct What are the three domains of life? Correct answer-a) Bacteria b) Eukaryotes c) Archaea 2) What are prokaryotes and eukaryotes? Correct answer-Prokaryotes have cell wall//eukaryotes have nucleus,membrane enclosed vesicles bacteria are Correct answer-prokaryotes fungi are Correct answer-eukaryotes

BIO 206 Chapter 24 Practice Test Exam Verified Answers

BIO206 Final Exam; Questions and Answers 100% Correct Interference Competition Correct answer-The direct interference of accessing resources, does not have to do with limited resources. (Ex. Vines overgrowing trees limiting sunlight) Exploitative Competition Correct answer-The indirect interference of a limited resource, two species sharing the same resource (food). Can lower growth rates and lead to extinction. Only applied when limited resource. Amensalism Correct answer-When one sp...

BIO 120 Skeletal System Part 1 Questions and Answers Graded A+ How many bones are in the body? 206 bones axial skeleton long axis (skull, vertebral column, rib cage) appendicular skeleton bones of the shoulder, pelvis, and upper and lower extremities What is the purpose of the axial skeleton? Protection of internal organs; supports and carries other body parts What is the purpose of the appendicular skeleton? Involved in locomotion and manipulation of the environment 6 Functions of th...