Crash Course Biology DNA Structure &
Replication Questions with Correct
Answers
DNA stands for - ANSWERSDeoxyribose Nucleic Acid
What does DNA store? - ANSWERSIt stores our genetic instructions
How many chromosomes are found in a human body cell? - ANSWERS46
chromosomes
What does RNA stand for? - ANSWERSribose nucleic acid
What are the small units in DNA called? - ANSWERSNucleotides
What are the three parts of a nucleotide? - ANSWERS1. 5 carbon sugar molecules
2. A phosphate group
3. 1 of 4 Nitrogen bases
What is the name of the sugar molecule in DNA? - ANSWERSdeoxyribose
List the four bases found in DNA - ANSWERS1. Adenine
2. Thymine
3. Cytosine
4. Guanine
Describe what we mean by a double helix. - ANSWERSThis is a double strand of
sugars and phosphates bound together to form a ladder.
What molecules form the sides of the DNA and how do they arrange themselves? -
ANSWERSSugars and phosphates run down the sides in opposite directions.
What molecules form the center "steps" of the ladder? - ANSWERSHydrogen Bonds
(AT) and (CG)
Replication Questions with Correct
Answers
DNA stands for - ANSWERSDeoxyribose Nucleic Acid
What does DNA store? - ANSWERSIt stores our genetic instructions
How many chromosomes are found in a human body cell? - ANSWERS46
chromosomes
What does RNA stand for? - ANSWERSribose nucleic acid
What are the small units in DNA called? - ANSWERSNucleotides
What are the three parts of a nucleotide? - ANSWERS1. 5 carbon sugar molecules
2. A phosphate group
3. 1 of 4 Nitrogen bases
What is the name of the sugar molecule in DNA? - ANSWERSdeoxyribose
List the four bases found in DNA - ANSWERS1. Adenine
2. Thymine
3. Cytosine
4. Guanine
Describe what we mean by a double helix. - ANSWERSThis is a double strand of
sugars and phosphates bound together to form a ladder.
What molecules form the sides of the DNA and how do they arrange themselves? -
ANSWERSSugars and phosphates run down the sides in opposite directions.
What molecules form the center "steps" of the ladder? - ANSWERSHydrogen Bonds
(AT) and (CG)
