deoxyribose, a phosphate and one of the bases: adenine, cytosine, guanine or thymine
ribose, a phosphate, and one of the bases: adenine, cytosine, guanine or uracil
Deoxyribose, a nitrate and one of the bases: adenine, cytosine, guanine or thymine
Ribose, a nitrate and one of the bases: adenine, cytosine, guanine or thymine
Question 2
Question
What type of bond holds the complementary base pairs together in a double helix of DNA?
Answer
Covalent bonds
Peptide bonds
Glycosidic bonds
Hydrogen bonds
Question 3
Question
What enzyme is used in transcription but not in translation?
Answer
DNA polymerase
Helicase
Protease
RNA polymerase
Question 4
Question
A certain gene in a bacterium codes for a polypeptide that is 120 amino acids long. How many nucleotides are needed in the mRNA to code for this polypeptide?
Answer
30
40
360
480
Question 5
Question
What is responsible for the conservation of the base sequence during DNA replication?
Answer
DNA polymerase working on one strand at the same time.
Unpaired bases always attracting their complementary nucleotides.
DNA helicase and polymerase are complementary.
Both strands are identical to each other.
Question 6
Question
During the process of replication, which bond(s) in the diagram of DNA below is/are broken?
How would the following DNA sequence, ACGTTGCATGGCA, be transcribed?
Answer
UGCAACGUACCGU
TGCAACGTACCGT
ACGTTGCATGGCA
ACGUUGCAUGGCA
Question 8
Question
The base sequence is the store of information.
Answer
True
False
Question 9
Question
Nitrogenous bases have two rings.
Answer
True
False
Question 10
Question
The base-phosphate backbone ensures that the store is stable and secure.
Answer
True
False
Question 11
Question
In order to link nucleotides into a chain, a hydrogen bond is formed b/n the phosphate and a pentose sugar.
Answer
True
False
Question 12
Question
Polymers of nucleotides also known as "strands"
Answer
True
False
Question 13
Question
The four bases in RNA are [blank_start]adenine[blank_end], [blank_start]uracil[blank_end], [blank_start]cytosine[blank_end] and [blank_start]guanine[blank_end].