DNA
DNA is copied during a process called:
a. replication c. transcription
b. translation d. transformation
a. replication
Genes contain instructions for assembling:
a. purines c. proteins
b. nucleosomes d. pyrimidines
c. proteins
The names of the scientists that produced the first model of DNA were:
a. Rosalind & Crick c. Einstein & Watson
b. Holmes & Watson d. Watson & Crick
d. Watson & Crick
__________ is the principle enzyme involved in DNA replication because it joins individual nucleotides to form a new DNA molecule.
a. DNA perimeterase c. DNA polymerase
b. DNA inyourfase d. DNA hypochondriase
c. DNA polymerase
What are the two nitrogenous bases of purines?
a. adenine and guanine c. adenine and cystine
b. thymine and cystine d. adenine and thymine
a. adenine and guanine
Which of the following nucleotide pair bonds would be found ina DNA molecule?
a. adenine - guanine c. adenine - cytosine
b. guanine - cytosine d. cytosine - uracil
b. guanine - cytosine
How many genes are found in the human body?
a. 36.5 c. 46
b. 72 d. 11 or 12, depending on sex
c. 46
Name the nitrogen bases:
a. adenine, thymine, adenosine, helicase
b. guanine, thymine, proline, adenosine
c. adenine, thymine, guanine, cytosine
c. adenine, thymine, guanine, cytosine
The enzyme that "unzips" the DNA molecule during replication is called _______________.
a. hectase c. xericase
b. inyourfase d. helicase
d. helicase
What are the two nitrogenous bases of pyrimidines?
a. thymine and cytosine c. adenine and cytostine
b. adenine and thymine d. Hanzen and Gretel
a. thymine and cytosine
The backbone of a DNA molecule is made up of which two components?
a. phosphate molecule and ribose sugar
b. deoxyphosphate molecule and ribose sugar
c. phosphate molecule and deoxyribose sugar
d. deoxyphosphate molecule and deosyribose sugar
c. phosphate molecule and deoxyribose sugar
Where is the cell is DNA located?
a. ribosomes c. cytopolasm
b. nucleus d. golgi aparatus
b. nucleus
What 3 things make up a nucleotide?
a. sugar, phosphate, lipid
b. rotein, phosphate, energy
c. sugar, phosphate, nitrogen base
c. sugar, phosphate, nitrogen base
The point at which two strands of DNA are separated to allow replication of each strand is:
a. replication fork c. point of no return
b. regeneration fork d. salad fork
a. replication fork
How many hydrogen bonds do purines have?
a. one c. three
b. two d. four
c. two
A DNA molecule is a polymer composed of subunits or building blocks known as:
a. polysaccharides c. nucleotides
b. ribose molecules d. uracil molecules
What are the sides of the DNA spiral made of?
a. nitrogen bases c. hydrogen
b. sugar and phosphate d. liquified nasturcium
b. sugar and phosphate
What is the shape of DNA?
a. double helix
b. single strand
c. circular
a. double helix
What type of bonds hold the nitrogen bases together?
a. nitrogen bases
b. hydrogen bonds
c. sugar and phosphate
b. hydrogen bonds
How many hydrogen bonds do pyrimidines have?
a. one c. three
b. two d. four
a. one
DNA replication takes place in the:
a. Golgi apparatus c. cytoplasm
b. ribosome d. nucleus
d. nucleus
What makes up the rungs of the DNA spiral?
a. nitrogen bases c. hydrogen
b. sugar and phosphates d. helicase
a. nitrogen bases
What are the monomers of nucleic acid?
a. nucleotides
b. momosaccharides
c. triglycerides
a. nucleotides
In eukaryotes, DNA
a. is located in the nucleus
b. is located in the ribosomes
c. floats freely in the cytoplasm
a. is located in the nucleus
In prokaryotes, DNA
a. is located in the nucleus
b. is located in the ribosomes
c. floats freely in the cytoplasm
d. is circular
c. floats freely in the cytoplasm