Uracil - Study guides, Class notes & Summaries
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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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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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BIL150 Mallery Exam 4 || ALREADY GRADED A+
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The two polynucleotide chains in DNA are held together primarily by H bonds between A and U as well as between G and T? 
 
a. True 
b. False correct answers B 
 
(DNA does not have Uracil, it has Cytosine) 
 
If there is 12% of A in a DNA molecule, then the % of G must be? 
 
a. 12% 
b. 30% 
c. 368 
d. 76% 
e. none of these are correct correct answers E 
 
(A=T and C=G, A+G/T+C=1) 
 
The catalytic molecule responsible for making a peptide bond during translation (protein synthesis) in cells is? ...
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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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USMLE STEP 1 BIOCHEMISTRY Questions and Answers with Complete Solutions 2024
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USMLE STEP 1 BIOCHEMISTRY 
Questions and Answers with 
Complete Solutions 2024 
histones are rich in which 2 AA's - ANSlysine & argenine 
Barr bodies (what, type of chromatin) - ANSinactive X chromosomes 
heterochromatin (highly condensed, sterically inaccessible) 
less condensed, transcriptionally active, sterically accessible chromatin - 
ANSeuchromatin 
DNA methylation at CpG islands - ANSrepresses transcription 
"CpG Methylation makes DNA Mute" 
DNA methylation (what is methylated and why...
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UNE Biochemistry Final, Final, Final Exam Review UNE medical biochemistry already graded A
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UNE Biochemistry Final, Final, Final Exam Review UNE medical biochemistry already graded A 
A comatose infant is brought to the ER. In the course of the examination, plasma ammonia was found to be elevated 20-fold over normal values. Urine orotic acid and uracil were both greater than normal. A defect of which of the following enzymes is the most likely diagnosis? Ornithine transcarbamoylase 
Your patient presents with a deficiency of the enzyme that catalyzes synthesis of N-acetylglutamate (NAG...
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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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Edexcel a level biology question paper 2 june 2023 salters Nuffield + mark scheme
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Mark Scheme (Results) 
Summer 2023 
Pearson Edexcel GCE 
In Biology A (9BN0 02) 
Paper 2: Energy, Exercise and CoordinationEdexcel and BTEC Qualifications 
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We provide a wide 
range of qualifications including academic, vocational, occupational and specific programmes for employers. For 
further information visit our qualifications websites at or . Alternatively, you 
can get in touch with us using the deta...
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Biochem Module 6 (Portage Learning), CHEM 210 Biochemistry Questions and Answers 100% Graded A+ Updated 2024
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Biochem Module 6 (Portage Learning), CHEM 210 Biochemistry Questions and Answers 100% Graded A+ Updated 2024 
 
In DNA, adenine always pairs with ________. 
 
- Thymine 
- Guanine 
- Uracil 
- Cytosine - CORRECT ANSWER-- Thymine 
 
DNA is built from which of the following? 
 
- Nucleosides 
- Genes 
- Purines 
- Nucleotide 
- Codons - CORRECT ANSWER-- Nucleotide 
 
The double helix of DNA is stabilized mainly by __________. 
 
- Ionic bonds 
- Covalent bonds 
- Ion-dipole bonds 
- Hydroge...
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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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