BIO 111 Exam 4 UPDATED Questions and
CORRECT Answers
The base C cytosine has its complementary partner the base? - CORRECT ANSWER -
guanine
He found the amount of adenine always equals the amount of guanine and the amount of thymine
always equals the amount of cytosine. T or F - CORRECT ANSWER - false
During DNA replication, what is the name of the enzyme that matches the nucleotide base in the
original parental DNA strand with its complementary partner? - CORRECT ANSWER -
DNA polymerase
__________ are the unit of hereditary (what we inherit from our parents) and are made of
__________: - CORRECT ANSWER - Chromosomes, DNA
The basic subunits (monomers) of DNA are the ___________. - CORRECT ANSWER -
nucleotides
This figure represents the duplication of DNA. Which enzyme is breaking the double-stranded
DNA molecule into single-stranded segments? - CORRECT ANSWER - DNA helicase
A DNA molecule is able to open up because of: - CORRECT ANSWER - nitrogenous
bases linked together with hydrogen bonds
In the structure of DNA, to what part do the nitrogen-containing bases covalently bond? -
CORRECT ANSWER - deoxyribose sugar
A DNA nucleotide consists of: - CORRECT ANSWER - phosphate-deoxyribose sugar-
base
, How many different types of nucleotides are there? - CORRECT ANSWER - four
If the quantities of the four bases in a DNA molecule are measured, we find that: - CORRECT
ANSWER - A=T and G=C
All nitrogenous bases are found in DNA except: - CORRECT ANSWER - uracil
The covalently bonded backbone of the DNA double helix are made of - CORRECT
ANSWER - alternating deoxyribose sugars bonded to phosphates
Where does DNA replication occur? - CORRECT ANSWER - nucleus
Based on the figure, the base adenine always bonds to the base - CORRECT ANSWER -
thymine
In DNA, phosphate groups bond to - CORRECT ANSWER - deoxyribose sugar
If a DNA based sequence of GGCTTCG is mutated to GGATTCG, this type of mutation is
called - CORRECT ANSWER - substitution mutation
Although DNA polymerase rarely make mistakes, DNA replication errors may occur. These
errors are known as mutations. T or F - CORRECT ANSWER - true
The base sequence of one DNA nucleic acid strand in a double helix is GTTACG. The sequence
of its complementary strand is - CORRECT ANSWER - CAATGC
What is the relationship among DNA, a gene, and a chromosome? - CORRECT
ANSWER - a chromosome contains hundreds of genes, which are composed of DNA
A coding strand of DNA used for transcription is:
CORRECT Answers
The base C cytosine has its complementary partner the base? - CORRECT ANSWER -
guanine
He found the amount of adenine always equals the amount of guanine and the amount of thymine
always equals the amount of cytosine. T or F - CORRECT ANSWER - false
During DNA replication, what is the name of the enzyme that matches the nucleotide base in the
original parental DNA strand with its complementary partner? - CORRECT ANSWER -
DNA polymerase
__________ are the unit of hereditary (what we inherit from our parents) and are made of
__________: - CORRECT ANSWER - Chromosomes, DNA
The basic subunits (monomers) of DNA are the ___________. - CORRECT ANSWER -
nucleotides
This figure represents the duplication of DNA. Which enzyme is breaking the double-stranded
DNA molecule into single-stranded segments? - CORRECT ANSWER - DNA helicase
A DNA molecule is able to open up because of: - CORRECT ANSWER - nitrogenous
bases linked together with hydrogen bonds
In the structure of DNA, to what part do the nitrogen-containing bases covalently bond? -
CORRECT ANSWER - deoxyribose sugar
A DNA nucleotide consists of: - CORRECT ANSWER - phosphate-deoxyribose sugar-
base
, How many different types of nucleotides are there? - CORRECT ANSWER - four
If the quantities of the four bases in a DNA molecule are measured, we find that: - CORRECT
ANSWER - A=T and G=C
All nitrogenous bases are found in DNA except: - CORRECT ANSWER - uracil
The covalently bonded backbone of the DNA double helix are made of - CORRECT
ANSWER - alternating deoxyribose sugars bonded to phosphates
Where does DNA replication occur? - CORRECT ANSWER - nucleus
Based on the figure, the base adenine always bonds to the base - CORRECT ANSWER -
thymine
In DNA, phosphate groups bond to - CORRECT ANSWER - deoxyribose sugar
If a DNA based sequence of GGCTTCG is mutated to GGATTCG, this type of mutation is
called - CORRECT ANSWER - substitution mutation
Although DNA polymerase rarely make mistakes, DNA replication errors may occur. These
errors are known as mutations. T or F - CORRECT ANSWER - true
The base sequence of one DNA nucleic acid strand in a double helix is GTTACG. The sequence
of its complementary strand is - CORRECT ANSWER - CAATGC
What is the relationship among DNA, a gene, and a chromosome? - CORRECT
ANSWER - a chromosome contains hundreds of genes, which are composed of DNA
A coding strand of DNA used for transcription is:
