Dna double helix Study guides, Class notes & Summaries
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Test bank Campbell Biology (11th Revised Edition) Textbook
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Campbell Biology, 11e (Urry) 
Chapter 1 Evolution, the Themes of Biology, and Scientific Inquiry 
 
1.1	Multiple-Choice Questions 
 
1)	Cells are	. 
A)	only found in pairs, because single cells cannot exist independently 
B)	limited in size to 200 and 500 micrometers in diameter 
C)	characteristic of eukaryotic but not prokaryotic organisms 
D)	characteristic of prokaryotic and eukaryotic organisms Answer: D 
Bloom's Taxonomy: Knowledge/Comprehension Section: 1.1 
 
2)	In comparison to eukaryote...
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AC-HPAT Prep test exam questions and answers 2023
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Most of the cell membrane's specific functions are controlled by: - Proteins 
 
Alcoholic Fermentation is a form of: - Anaerobic Respiration 
 
Phagocytosis is a form of: - Endocytosis 
 
What is a pyruvate? - Pyruvate is an important chemical compound in biochemistry. It is the output of the metabolism of glucose known as glycolysis. One molecule of glucose breaks down into two molecules of pyruvate, which are then used to provide further energy, in one of two ways. 
 
What are the small spheri...
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Technologist in Molecular Biology, MB(ASCP) board exam prep 2024 with 100% Correct Answers
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Technologist in Molecular Biology, MB(ASCP) 
board exam prep 2024 with 100% Correct 
Answers 
Pyrimidine - Answer ️️ -One carbon ring 
Cytosine, Thymine, Uracil 
What is the function of mRNA? - Answer ️️ -Carries genetic info out of nucleus 
Transcript translated to protein 
What is the function of tRNA? - Answer ️️ -Carries aa to ribosome 
Anticodon pairs with codon on mRNA strand 
What is the function of rRNA? - Answer ️️ -part of ribosome structure 
most abundant RNA 
coordina...
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Campbell Biology Test Bank 11TH Edition (Urry)
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Campbell Biology Test Bank 11TH Edition (Urry) Cells are ________. 
A) only found in pairs, because single cells cannot exist independently 
B) limited in size to 200 and 500 micrometers in diameter 
C) characteristic of eukaryotic but not prokaryotic organisms 
D) characteristic of prokaryotic and eukaryotic organisms 
Answer: D 
Bloom's Taxonomy: Knowledge/Comprehension 
Section: 1.1 
2) In comparison to eukaryotes, prokaryotes ________. 
A) are more structurally complex 
B) are larger 
C) ar...
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Edexcel A Level Biology Paper 1 Mark Scheme June 2023 (Salters Nuffield)
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uestion 
Number 
Answer Mark 
1(a) The only correct answer is C a place where an organism lives 
A is incorrect because a group of organisms of different species living in the same area is a 
community 
B is incorrect because a group of organisms of the same species living in the same area is a 
population 
D is incorrect because the role of an organism is its niche 
(1) 
Question 
Number 
Answer Additional guidance Mark 
1(b)(i) A description that makes reference to three of the following 
• ...
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BSC 108 Exam 3 Kennedy Questions and Answers Solved 100% Correct!!
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The structure of a strand of DNA. - Answer-it is a double helix, like a twisted ladder. 
the ladder rings are nucleotide subunits and they have a covalent bond to the sugar phosphate 
backbone (made of deoxyribose and a phosphate group) 
What are the nucleotide subunits? - Answer-adenine, guanine, cytosine, and thymine 
How are the subunits held together? - Answer-through a hydrogen bond 
What are the nucleotide subunits compliments? - Answer-Adenine and thymine 
cytosine and guanine 
How does D...
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ASU BIO 181 Exam 2 (modules 7-12) Questions & Answers 2024
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ASU BIO 181 Exam 2 (modules 7-12) Questions & Answers 2024 
 
 
Draw the sugar in DNA and label the carbons as discussed in the lecture. Then circle the carbon that is different in RNA. - ANSWER-... 
 
Which enzyme unwraps the double helix? - ANSWER-Helicase 
 
Which enzyme is used first to permit DNA polymerase III to begin replicating the 3' strand? - ANSWER-Primase 
 
The double helix of DNA is wrapped around 1 3/4 times around which of these components? - ANSWER-Nucleosome 
 
In the lagging...
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ASU BIO 181: EXAM 2 Questions with 100% correct Answers
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Which strand is produced more rapidly? - ANSWER-Leading strand 
 
During DNA replication in the lagging strand there is production of this component? - ANSWER-Okazaki fragment 
 
How many "stop" codons exist? - ANSWER-3 
 
The double helix of DNA is wrapped about 1¾ times around which of these components? - ANSWER-Nucleosome 
 
Which enzyme unwraps the double helix? - ANSWER-Helicase 
 
In the ribosome, what is the name of the bond that links one amino acid to the next? - ANSWER-peptide bonds...
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2024 AQA AS BIOLOGY 7401/1 Paper 1 Question Paper & Mark scheme (Merged) June 2023 VERIFIED / Biology AQA AS level 7401/1 Paper 1
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2024 AQA AS BIOLOGY 7401/1 
Paper 1 Question Paper & 
Mark scheme (Merged) June 
2023 VERIFIED / Biology AQA 
AS level 7401/1 Paper 1 
Describe the induced-fit model of enzyme action - ANSWER-- 
active site not complementary to/does not fit substrate 
- Shape of active site changes as enzyme- substrate complex forms 
- Distorting bonds (in substrate leading to reaction) 
• The human cell then makes a complementary strand to the HIV DNA. 
The complementary strand is made in the same way as a ne...
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Bio WGU study for OA c190 QUESTION AND CORRECT ANSWER Latest update 2023
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Adaptation- - correct answersThe adjustment or changes in behavior, physiology, and structure of an organism to become more suited to an environment. 
 
Aerobic- - correct answersA process that requires oxygen. 
 
Allele -An alternative form of a gene. An example would be genes that encode eye color—some encode blue eyes (one allele), while others encode brown, green, or hazel eye colors (other alleles). - correct answers 
 
amino acids - - correct answersA small organic molecule with the stru...
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BIO 111 ECPI A&P questions with correct answers
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Part of the cell cycle when DNA replicates Answer interphase 
 
Phase of mitosis when the nuclear envelope starts to disappear and chromatin condenses into highly visible chromosomes Answer prophases 
 
Atoms that lose electron tend to become Answer positively charged 
 
The first folding of linear amino acid sequence (e.g alpha helix and beta sheet) are types of protein Answer secondary structure 
 
The major components of the cell membrane Answer phospholipids and proteins 
 
Ribosomes are bes...
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PORTAGE LEARNING CHEM 210 exams 1-8 and final exam
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Portage Learning CHEM 210 exams 1-8 and final exam 
 
Question 1 
3 / 3 pts 
 
True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. 
 
 
 
True Correct! 
False Question 2 
3 / 3 pts 
True or False: Biomolecules can have only two functional groups. 
 
True Correct! 
False Question 3 
3 / 3 pts 
 
True or False: The following functional group is an alcohol. 
 
 
 
 
 
True Correct! 
False Question 4 
3 / 3 pts 
 
True or False: In ...
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