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Bio 1A03 - Theme 4 Study Set Exam Questions Fully Solved.
How is the process of prokaryotic cell division initiated? - Answer - DNA attaches to the inside of the plasma membrane by proteins - replication begins along an origin of replication region of the bacterial chromosome stem cells - Answer - undifferentiated cells - can reproduce indefinitely - are able to differentiate into specialized cells (under appropriate conditions) - adult stem cells are able to replace non-reproducing specialized cells What happens when muscle cells unde...
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BIO 1A03 Theme 5 Module 4 Exam Questions And Correct Answers .
how much of our DNA will code for proteins and actually be used - Answer 2% will code for functional proteins or small RNAs how many alleles of a gene per person - Answer 2 alleles there can be many alleles or haplotypes in populations- lead to variations Proteomes - Answer collection of expressed proteins in a cell cellular proteomes driven by diff transcriptional programs, direction diff cells to engage in diff functions white blood cells (leukocytes) - Answer innat...
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Bio 1A03 Exam Questions With Correct Solved Solutions.
Human Microbiome - Answer 10 trillion eukary cells in adult human, 10x as many bacterial (2-3% body mass) Strepro Salivarius - Answer Mouth/upper resp Staph Haemolyticus - Answer Skin Bacteriodes Theta - Answer Intestines C diff - Answer Intestines Phospholipids - Answer Glycerol + phosphate with fatty acid tails (saturated = single, unsaturated = double), non polar tails and polar heads Cell Environment - Answer Hypertonic soln = too much outside, they shr...
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Test 1 BIO 1a03 Questions With Guaranteed Pass Solutions.
Central Dogma - Answer theory that states that, in cells, information only flows from DNA to RNA to proteins what enzyme is used to transcribe DNA and describe the process - Answer RNA polymerase attaches to specific promoter regions its these promoter regions which identifies the starting point, describe the DNA and RNA directionality and how the direction followed by RNA polymerase - Answer the 5' end has the 5'phosphate on a nucleotide the other end is the 3' OH group ...
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Biology 1A03 Test 3 Final Exam Questions With Correct Solutions.
cell division in prokaryotes - Answer binary fission, also reproduction, identical genetic material distributed among daughter cells. DNA replication begins when DNA is attached by proteins to the inside of the plasma membrane. as chromosomes replicate, cells elongate and new DNA attaches to opposite plasma membrane, cell forms new cell membrane and cell wall and splits in 2 Eukaryotic cell division - Answer allows a unicellular fertilized egg to become a multi cellular organism Stem...
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Bio 1A03 Test 3 Questions With Already Passed Answers.
Binary Fission steps - Answer -Initiated when proteins attach DNA to plasma membrane -Begins along ORI region -Newly synthesized DNA also anchored to membrane -Cell elongates until ~2 times its original size and two has two chromosomes on opposite ends of the cell -Cell splits in two Quiescent stem cells, function - Answer Permanently arrested in G0 phase. In adults: can replace non-reproducing specialized cells) ex adult skeletal muscle/myofiber) Steps of quiescent stem cell to ...
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Examen
BIO 1A03 TEST 2 Revision Questions With Solutions Scored A+.
The lacZand lacY genes are transcribed when a) lactose is absent and glucose levels are high. b)lactose is present and glucose levels are low. c)lactose is present, regardless of the level of glucose in the cell. d) glucose levels are low, regardless of the level of lactose in the cell. - Answer b) The CRP-cAMP complex binds the lactose operon when a) glucose levels and cAMP levels are low. b) glucose levels are high and cAMP levels are low. c) glucose levels and cAMP levels ar...
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Examen
BIO 1A03 Test 2 Questions And Already Passed Answers.
one gene-one enzyme hypothesis - Answer each gene contains the information needed to make an enzyme What did George Beadle and Edward Tatum research? - Answer Relationship between genes and proteins using the Neurospora Crassa One gene-one enzyme hypothosis (Neuroposa Example) - Answer Neurospora can grow well on minimal medium (simple sugar, vitamins, inorganic salts), and therefore it must have enzymes produced by a certain gene that that transform these materials into amino aci...
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BIO 1A03 Test 1 Review Questions And Complete Verified Answers.
According to the endosymbiotic theory, what is the likely origin of the mitochondria? A. Infolded cell membranes B. Aerobic bacteria C. Anaerobic bacteria D. Non-photosynthetic chloroplasts - Answer B The endosymbiotic theory is an attempt to explain the presence of the __________ in the eukaryotic cell. A. Ribosomes and chloroplasts B. Mitochondria and the nucleus C. Mitochondria and chloroplasts D. Ribosomes and the nucleus - Answer C Water passes quickly through cell ...
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Examen
BIO 1A03 McMaster University Test 2 Review UPDATED ACTUAL Exam Questions and CORRECT Answers
BIO 1A03 McMaster University Test 2 Review UPDATED ACTUAL Exam Questions and CORRECT Answers Translation - CORRECT ANSWER- Cellular components are able to read the genetic message in mRNA and translate the message into specific primary amino acid sequence of a protein How does tRNA structure allow for SPECIFICTY in translation? - CORRECT ANSWER- 1. Plays critical role in ENABLING the translation of the information 2. Each type of tRNA molecule is not identical and can translate a spe...
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BIO 1A03 Test 2 Review UPDATED ACTUAL Exam Questions and CORRECT Answers
BIO 1A03 Test 2 Review UPDATED ACTUAL Exam Questions and CORRECT Answers What is needed for prokaryote growth - CORRECT ANSWER- Nutrient-rich environment containing amino acids, carbohydrates, vitamins, nucleotides, favourable temperature housekeeping genes - CORRECT ANSWER- required all the time for vital functions Constitutively expressed includes structural proteins, ribosomal proteins, RNAP, DNAP allow for constant maintenance
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Examen
test 1 BIO 1a03 Exams with Correct Answers Graded A 2023
Central Dogma - theory that states that, in cells, information only flows from DNA to RNA to proteins what enzyme is used to transcribe DNA and describe the process - RNA polymerase attaches to specific promoter regions its these promoter regions which identifies the starting point, describe the DNA and RNA directionality and how the direction followed by RNA polymerase - the 5' end has the 5'phosphate on a nucleotide the other end is the 3' OH group of a nucleotide -traditionally rea...
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Examen
Bio 1A03 Test 3 Questions And Answers 2023
Binary Fission steps - -Initiated when proteins attach DNA to plasma membrane -Begins along ORI region -Newly synthesized DNA also anchored to membrane -Cell elongates until ~2 times its original size and two has two chromosomes on opposite ends of the cell -Cell splits in two Quiescent stem cells, function - Permanently arrested in G0 phase. In adults: can replace non-reproducing specialized cells) ex adult skeletal muscle/myofiber) Steps of quiescent stem cell to myofiber - -Activate...
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Examen
BIO 1A03 Test 2 Questions with Answers 100% Verified
one gene-one enzyme hypothesis - each gene contains the information needed to make an enzyme What did George Beadle and Edward Tatum research? - Relationship between genes and proteins using the Neurospora Crassa One gene-one enzyme hypothosis (Neuroposa Example) - Neurospora can grow well on minimal medium (simple sugar, vitamins, inorganic salts), and therefore it must have enzymes produced by a certain gene that that transform these materials into amino acids and vitamins needed for gro...
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Examen
BIO 1A03 TEST 2 VERIFIED QUESTIONS AND ANSWERS 2023
The lacZand lacY genes are transcribed when a) lactose is absent and glucose levels are high. b)lactose is present and glucose levels are low. c)lactose is present, regardless of the level of glucose in the cell. d) glucose levels are low, regardless of the level of lactose in the cell. - b) The CRP-cAMP complex binds the lactose operon when a) glucose levels and cAMP levels are low. b) glucose levels are high and cAMP levels are low. c) glucose levels and cAMP levels are high. d...
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BIO 1A03 Bundled Exams Questions and Answers Latest Versions (2023/2024) All Rated A
BIO 1A03 Bundled Exams Questions and Answers Latest Versions (2023/2024) All Rated A
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Examen
BIO 1A03 Test 1 Review Questions and Answers Graded A
BIO 1A03 Test 1 Review Questions and Answers Graded A According to the endosymbiotic theory, what is the likely origin of the mitochondria? A. Infolded cell membranes B. Aerobic bacteria C. Anaerobic bacteria D. Non-photosynthetic chloroplasts B The endosymbiotic theory is an attempt to explain the presence of the __________ in the eukaryotic cell. A. Ribosomes and chloroplasts B. Mitochondria and the nucleus C. Mitochondria and chloroplasts D. Ribosomes and the nucleus C Water passes q...
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Examen
BIO 1A03 Test 1 Questions and Answers Rated A
BIO 1A03 Test 1 Questions and Answers Rated A How many cells are IN the human body? 10 trillion cells How many cells is a human body host to? 100 trillion What type of cells account for 90% of the cells of the human body? bacterial cells Microbiome population of microorganisms How are babies delivered in a specific way different from babies born another way Babies born via C-section have different gut microbes than those delivered vaginally Can microbe populations change continuously and w...
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Examen
BIO 1A03 Test 2 Review (2023/2024) Already Graded A
BIO 1A03 Test 2 Review (2023/2024) Already Graded A What is needed for prokaryote growth Nutrient-rich environment containing amino acids, carbohydrates, vitamins, nucleotides, favourable temperature housekeeping genes required all the time for vital functions Constitutively expressed includes structural proteins, ribosomal proteins, RNAP, DNAP allow for constant maintenance Regulated genes turned on/off when needed includes enzymes needed to channel growth/division Beta-Glalactosidase enzyme...
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Examen
BIO 1A03 Midterm 2 Questions and Answers Graded A
BIO 1A03 Midterm 2 Questions and Answers Graded A Prokaryotic growth and cell division -nutrient-rich environment -favorable temperatures Housekeeping genes -genes required at all times for normal function -all ways transcribed and translated -allow constant maintance for general cellular activity -e.g. structural protein of a cell, DNA and RNA polymerase, genes coding for ribosomal proteins -constitutive Regulated genes genes that can be turned on and off at a needed basis Francois Jacob and...
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