Guanine and uracil Study guides, Class notes & Summaries
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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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BLG1501 Assignment 2 Semester 1 2024 (Solutions)
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BLG1501 Assignment 2 Semester 1 2024 (Solutions) 
 
Question 1 
Not yet answered 
Marked out of 2.00 
Flag question 
Question text 
Hydrolysis is reaction which occurs when 
Select one: 
a. 
a bond of a polymer is broken down through the addition of water molecule. 
b. 
two molecules are covalently bonded to each other through the loss of water. 
c. 
a double bond is formed between two atoms. 
d. 
a triple bond is formed between two atoms. 
Clear my choice 
Question 2 
Not yet answered 
Marked o...
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Essential Biochemistry 3rd Edition By Charlotte W. Pratt – Kathleen Cornely – Test Bank
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Essential Biochemistry 3rd Edition By Charlotte 
W. Pratt – Kathleen Cornely – Test Bank Question type: Multiple Choice 
1) Which of the following is a characteristic of Chargaff’s rules? 
1. A) A + T = C + G 
2. B) A + G = C + T 
3. C) A + G = C + U 
4. D) all organisms have identical amounts of all four nucleotides 
5. E) none of the above 
Answer: B 
Difficulty: Medium 
Section Reference: 3-1 
Learning Objective: Describe the structural features of DNA and RNA 
2) A base found exclusive...
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CPPS 403 Pre-Midterm exam 2023 with 100% correct answers
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Central Dogma - correct answerDNA-(Transcription) - RNA- (Translation) -Protein 
 
DNA Structure - correct answer1. Deoxyribose: 5 Carbon atoms are numbered 1' to 5' . Hydrogen attached to 2'. Sugar 
2. Phosphate group 
Sugar-Phosphate backbone is asymmetric because PO4 groups connect the C5' of a sugar with the C3' of neighbouring sugar. = Asymmetric ends because the C5' end is attached to a PO4 and the C3' end is simply a hydroxyl group of the sugar. 
3. Nucleic Acid: No-covalently bon...
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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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COMPLETE A+ TEST BANK for Microbiology Fundamentals: A Clinical Approach 4th Edition Marjorie Kelly Cowan & Heidi Smith (2022), Chapters 1-22, ISBN13: 9781260702439
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Chapter 01: 
 Introduction to 
 Microbes and Their 
 Building Blocks 
 
Multiple Choice Questions 
 
 
1)	The major groups of microorganisms studied 
by microbiologists include	. 
 
A)	bacteria 
B)	plants 
C)	helminths 
D)	algae 
E)	fungi 
F)	viruses 
G)	archaea 
H)	protozoa 
 
 
 
2)	Select all answers that are roles played by microorganisms in our environment. 
 
 
A)	Carry out photosynthesis 
B)	Biological decomposition 
C)	Nutrient recycling 
D)	Complex relationships with animals but not pl...
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(MB) ASCP Practice Exam Questions and Answers
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(MB) ASCP Practice Exam Questions and Answers 
 
Which of the following is not a component of a nucleotide? 
Phosphate group 
Anti-codon 
Ribose sugar 
Nitrogen base - ANSWER Anti-codon 
 
According to Chargaff's rule of base pairing, adenine pairs with: - ANSWER Thymine 
 
What genes would be screened in a breast cancer panel? - ANSWER HER2, ERBB2, BRCA1 
 
Next Generation Sequencing uses: - ANSWER Short sequence reads 
 
Purines and pyrimidines differ from each other in that: - ANSWER Purine...
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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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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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Test Bank for Biochemistry: A Short Course, 4th Edition, John Tymoczko, Jeremy M. Berg, Gregory J. Gatto Jr., Lubert Stryer
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Chapter 1 Biochemistry and the Unity of Life 
Matching Questions 
Use the following to answer questions 1–10: 
Choose the correct answer from the list below. Not all of the answers will be used. 
a) uracil 
b) cytoplasm 
c) protein 
d) thymine 
e) carbohydrate 
f) sugar–phosphate units 
g) cell wall 
h) transcription 
i) glycogen 
j) lipid 
k) central dogma 
l) phagocytosis 
m) endoplasmic reticulum 
n) translation 
o) prokaryotes 
p) eukaryotes 
q) lysosome 
1. DNA is made from the building...