SDSU BIO 100 Exam 3 (Ekdale) UPDATED
ACTUAL Exam Questions and CORRECT
Answers
DNA is wrapped - CORRECT ANSWER - Around proteins to form chromatin
Chromatin twists and folds - CORRECT ANSWER - To form a chromosome
Where are chromosomes stored - CORRECT ANSWER - In the cell's nucleus
What are the building blocks of DNA - CORRECT ANSWER - nucleotides
What are the three parts of nucleotides - CORRECT ANSWER - 1. Central 5-carbon sugar
2. Negatively charged phosphate
3. Best made of one or two rings of nitrogen and carbon
Four bases in a nucleotides - CORRECT ANSWER - Adenine (A), Thymine (T), Guanine
(G), Cytosine (C)
Nucleotides join together to create... - CORRECT ANSWER - A polynucleotide...with
alternating sugar and phosphate creating the "backbone"
DNA is made up of two polynucleotide strands - CORRECT ANSWER - True
Adenine(A) - CORRECT ANSWER - Always pairs with Thymine(T)
Cytosine(C) - CORRECT ANSWER - Always pairs with Guanine(G)
, Semi-conservative DNA replication - CORRECT ANSWER - Each new molecule
conserves half of the original molecule
What does semi-conservative property of DNA replication reveal - CORRECT
ANSWER - The process of heredity
DNA helicase - CORRECT ANSWER - Unzips two DNA strands forming an exposed
bubble
DNA polymerase - CORRECT ANSWER - Builds a complementary DNA molecule to the
distinguishing strand... A-T and C-G
DNA ligase - CORRECT ANSWER - Joins the individual fragments...creates the final
DNA molecule
What similarities do DNA and RNA share - CORRECT ANSWER - Both are nucleic
acids, contain sugar, phosphate, and nucleotide base
Is DNA double stranded or single stranded? - CORRECT ANSWER - double stranded
Is RNA single or double stranded? - CORRECT ANSWER - Single stranded
What sugar is contained in DNA - CORRECT ANSWER - deoxyribose (think the D)
What sugar is contained in RNA - CORRECT ANSWER - Ribose (think the R)
What are the four bases in DNA - CORRECT ANSWER - A, T, C, G
What are the four bases in RNA - CORRECT ANSWER - A, U, C, G
ACTUAL Exam Questions and CORRECT
Answers
DNA is wrapped - CORRECT ANSWER - Around proteins to form chromatin
Chromatin twists and folds - CORRECT ANSWER - To form a chromosome
Where are chromosomes stored - CORRECT ANSWER - In the cell's nucleus
What are the building blocks of DNA - CORRECT ANSWER - nucleotides
What are the three parts of nucleotides - CORRECT ANSWER - 1. Central 5-carbon sugar
2. Negatively charged phosphate
3. Best made of one or two rings of nitrogen and carbon
Four bases in a nucleotides - CORRECT ANSWER - Adenine (A), Thymine (T), Guanine
(G), Cytosine (C)
Nucleotides join together to create... - CORRECT ANSWER - A polynucleotide...with
alternating sugar and phosphate creating the "backbone"
DNA is made up of two polynucleotide strands - CORRECT ANSWER - True
Adenine(A) - CORRECT ANSWER - Always pairs with Thymine(T)
Cytosine(C) - CORRECT ANSWER - Always pairs with Guanine(G)
, Semi-conservative DNA replication - CORRECT ANSWER - Each new molecule
conserves half of the original molecule
What does semi-conservative property of DNA replication reveal - CORRECT
ANSWER - The process of heredity
DNA helicase - CORRECT ANSWER - Unzips two DNA strands forming an exposed
bubble
DNA polymerase - CORRECT ANSWER - Builds a complementary DNA molecule to the
distinguishing strand... A-T and C-G
DNA ligase - CORRECT ANSWER - Joins the individual fragments...creates the final
DNA molecule
What similarities do DNA and RNA share - CORRECT ANSWER - Both are nucleic
acids, contain sugar, phosphate, and nucleotide base
Is DNA double stranded or single stranded? - CORRECT ANSWER - double stranded
Is RNA single or double stranded? - CORRECT ANSWER - Single stranded
What sugar is contained in DNA - CORRECT ANSWER - deoxyribose (think the D)
What sugar is contained in RNA - CORRECT ANSWER - Ribose (think the R)
What are the four bases in DNA - CORRECT ANSWER - A, T, C, G
What are the four bases in RNA - CORRECT ANSWER - A, U, C, G
