Review of DNA

Which pairings correcly depict the way in which DNA bases pair?
1. Adenine pairs with Guanine || Thymine pairs with Cytosine
2. Adenine pairs with Cytosine || Thymine pairs with Guanine
3. Adenine pairs with Thymine || Guanine pairs with Cytosine
4. Adenine pairs with Adenine || Thymine pairs with Thymine
How many base pairing errors are depicted in the image above?
1. none
2. one
3. two
4. three
5. four
How many base pairing errors are depicted in the image above?
1. none
2. one
3. two
4. three
5. four
The double-stranded DNA molecule has a three dimensional structure known as a
1. spiral
2. double helix
3. triple helix
4. matirx
The structures in the diagram labeled X are
1. bases
2. deoxyribose sugars
3. phosphates
4. proteins
The structures in the diagram labeled W are
1. bases
2. deoxyribose sugars
3. phosphates
4. proteins
The structures in the diagram labeled Z are
1. bases
2. deoxyribose sugars
3. phosphates
4. proteins
Which of the following bottom strands of DNA is complementary to the strand shown above?
What part of the structure of DNA do the bold black lines on the top and the bottom of this image depict?
1. Proteins
2. The sugar-phosphate backbone
3. The bases adenine, thymine, guanine and cytosine
4. Phospholipids
In DNA, the total number of adenine bases will be equal to the total number of
1. thymine bases
2. guanine bases
3. cytosine bases
4. phosphates
In DNA, the total number of guanine bases will be equal to the total number of
1. thymine bases
2. guanine bases
3. cytosine bases
4. deoxyribose sugars
IN DNA, a nucleotide is comprised of
1. a deoxyribose sugar
2. a phosphate group
3. a nitrogenous base such as adenine, thymine, guanine or cytosine
4. amino acids
5. proteins
6. starches
In which organelle can most of the DNA be found In eukaryotic cells?
1. the ribosomes
2. the mitochondria
3. the Golgi bodies
4. the nucleus
Approximately how many base pairs make up the DNA content of a single human cell?
1. 40,000
2. 2 million
3. 300 million
4. 3 billion
5. 15 trillion
As shown in the image above, when DNA is replicated prior cell division, the new DNA molecules that result each contain
1. two old strands of DNA
2. two new strands of DNA
3. one old strand of DNA, and one new strand of DNA
4. an ice cream sundae with a cherry on top