Nitrogenous bases Study guides, Class notes & Summaries
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Bio-171 Exam 4 Questions with Complete Solutions
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What are the 4 nitrogenous bases? Which pair together? Correct Answer-adenine (A), thymine (T), cytosine (C), guanine (G) 
A->T, C->G 
 
What are the issues with these combinations: 
 1.) Pyrimidine + Pyrimidine = 
 2.) Purine + Purine = 
 3.) Pyrimidine + Purine = Correct Answer-1.) width of DNA too narrow 
2.) width of DNA too wide 
3.) width of DNA consistent with X-ray model 
 
Which bases are purines and which are pyrimidines? Correct Answer-purines: A,G 
pyrimidines: T,C 
 
What are...
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NUR4160 Genetics for Nursing Practice FINAL Questions with complete solutions
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What is DNA? Correct Answer-A linear, double-stranded structure composed of multiple units of four different nitrogenous bases, each attached to a sugar molecule 
 
Bases are nucleoprotiens created from proteins we eat. They can be single ring structures (pyrimidines) or double-ring structures (purines). What are the pyrimidines and what are purines? Correct Answer-Adenine and Guanine are purines. Thymine and cytosine are pyrimidines 
 
What is the purpose of a gene? Correct Answer-To code for t...
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BIOD 210 Module 5 DNA Replication, Transcription, and Translation (Portage learning)
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How many base 
pairs are in the 
human genome? 
3 billion 
2. Structure of 
nucelotide 
Nitrogenous base, pentose sugar, and a phosphate 
group 
3. Purines adenine (A) and guanine (G) 
4. pyrimidines cytosine (C), thymine (T), and uracil (U) 
5. nucleoside purine or pyrimidine base attached only to a sugar 
6. nucleotide nitrogenous base attached to a sugar and a phosphate 
group 
7. phosphodiester 
bond 
the type of bond that links the nucleotides in DNA or 
RNA. joins the phosphate group of on...
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Biology Final Exam chapters 1,2,5 EXAM QUESTIONS AND ANSWER
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Biology Final Exam chapters 1,2,5 EXAM 
QUESTIONS AND ANSWER 
joined by a phosphodiester bond to form the backbone of the 
DNA Double Helix - CORRECT ANSWER Nucleotide 
Created the double helix structure - CORRECT ANSWER 
Watson and Crick 
what are the nitrogenous bases? - CORRECT ANSWER 
adenine, thymine, cytosine, guanine 
the backbone of DNA - CORRECT ANSWER sugar phosphate 
group 
DNA strands are very - CORRECT ANSWER stable 
The 3 configurations of DNA - CORRECT ANSWER A, B, C 
the seq...
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Biology 1402 Dr. Held Exam 1 Latest Update Graded A+
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Biology 1402 Dr. Held Exam 1 Latest 
 
Update Graded A+ 
 
Evolution Change in the frequency of traits in a population. 
 
Natural Selection Cause of the change in evolution. 
 
Adaption Increase in fitness of population to it's environment 
 
Heritable Variation Trait which is capable of being inherited and selected 
 
DNA The genetic material that organisms inherit from their parents; a double-stranded 
helical macromolecule consisting of nucleotide monomers with deoxyribose sugar and the 
ni...
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Biology Final Exam chapters 1,2,5 EXAM QUESTIONS AND ANSWER
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Biology Final Exam chapters 1,2,5 EXAM 
QUESTIONS AND ANSWER 
joined by a phosphodiester bond to form the backbone of the 
DNA Double Helix - CORRECT ANSWER Nucleotide 
Created the double helix structure - CORRECT ANSWER 
Watson and Crick 
what are the nitrogenous bases? - CORRECT ANSWER 
adenine, thymine, cytosine, guanine 
the backbone of DNA - CORRECT ANSWER sugar phosphate 
group 
DNA strands are very - CORRECT ANSWER stable 
The 3 configurations of DNA - CORRECT ANSWER A, B, C 
the seq...
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BIOL 2300 Quizzes 1-7 Latest Update Graded A+
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BIOL 2300 Quizzes 1-7 Latest Update 
 
Graded A+ 
 
DNA is negatively charged because 
a. the ribose sugars of DNA are positively charged 
b. the ribose sugars of DNA are negatively charged 
c. the nitrogenous bases are negatively charged 
d. the phosphate backbone of DNA is negatively charged 
e. DNA is not acidic d. the phosphate backbone of DNA is negatively charged 
 
DNA replication is 
a. semi-conservative 
 
b. dispersive 
c. conservative 
 
d. error prone a. semi-conservative 
 
Define D...
![Genomics Midterm Exam Questions With Complete Solutions.](/docpics/3992625/65743dbfc5599_3992625_121_171.jpeg)
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Genomics Midterm Exam Questions With Complete Solutions.
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Genomics Midterm Exam Questions With Complete Solutions. 
 
DNA is a polymer composed of all of the following EXCEPT: 
 
a. nitrogenous base 
b. 5-carbon sugar 
c. codon 
d. phosphate group 
c 
codon = 3 nucleotide sequence 
Which of the nitrogen-containing bases are purines? 
 
a. adenine 
b. cytosine 
c. thymine 
d. guanine 
a, d 
cytosine and thymine are pyrimidines 
In a DNA sequence, adenine nitrogen base pairs with _________, while guanine pairs with _________. 
 
a. uracil, thymine 
b. th...
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PATHO Test 2 - UTMB EXAM WITH COMPLETE SOLUTIONS
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PATHO Test 2 - UTMB EXAM WITH COMPLETE SOLUTIONS 
Primary Function of Respiratory system 
- gas exchange with oxygen from the air being tranferred to the blood and carbon dioxide 
 
 
genome 
all of the genetic info in an organisms DNA 
 
 
Chromosomes 
Where the basic genetic info is stored. 23 pairs or 46 chromosomes. 
 
Female = XX 
Male = XY 
 
 
DNA Molecule 
- double stranded helix 
- stored within nucleus 
- stores genetic information 
 
 
Nitrogenous bases 
Pyrimidine bases 
- Thymine 
-...
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Bio 107 Exam Prep 2024 QUESTIONS WITH DETAILED VERIFIED ANSWERS | A+ GRADE ASSURED
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Bio 107 Exam Prep 2024 QUESTIONS WITH DETAILED 
VERIFIED ANSWERS | A+ GRADE ASSURED 
What does a nucleotide structure have? Nitrogenous base 
Sugar 
Phosphate group 
What do nucleotides form when they are chemically connected together? DNA strand 
What are the two nitrogenous bases? Pyrimidine and Purine 
What is included in the pyrimidine group? Cytosine (C) 
Thymine (T) 
Uracil (U) 
What is included in the purine group? Adenine (A) 
Guanine (G) 
Which of the following is only included in the D...
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