LSUE Biology 1001 Midterm & Final Exams
COMPLETE BUNDLE (2025/2026) | Actual Exams |
Introductory & Comprehensive Biology
Assessment
The chromosome theory of inheritance states that
A) chromosomes that exhibit mutations are the source of genetic variation
B) the behavior of chromosomes during meiosis and fertilization accounts for patterns of
inheritance
C) the behavior of chromosomes during mitosis accounts for inheritance patterns
D) humans have 46 chromosomes -- answer--B) the behavior of chromosomes during meiosis
and fertilization accounts for patters of inheritance
The alleles of a gene are found at ______ chromosomes
A) the same locus on non homologous
B) different loci on homologous
C) different loci on non homologous
D) the same locus on homologous -- answer--D) the same locus on homologous
DNA polymerase
A) joins nucleotides to produce new polymers of RNA
,B) reads the RNA strand, and adds the complementary nitrogen bases to make new RNA strand
C) Stretches the DNA polymers to make new DNA strands
D) joins the two DNA fragments
E) reads the DNA strands, and adds the complementary nucleotides to amen a new DNA strand
-- answer--E) reads the DNA strands, and adds the complementary nucleotides to amen a new
DNA strand
Why does the recessive allele disorder, such as color blindness, that is linked to human sex
chromosomes X affect mostly males? Because, it is more likely that
A) females have a greater probability of inheriting two recessive alleles than one allele to
express the disorder
B) males need only one recessive allele from his father to express the disorder
C) females have a lesser probability of inheriting one recessive allele than two alleles to express
the disorder
D) males need two recessive alleles from the father and the mother to express the disorder
E) males need only one recessive allele from his mother to express the disorder -- answer--E)
males need only one recessive allele from his mother to express the disorder
The directions for each amino acid in a polypeptide are indicated by a codon that consists of
_____ nucleotide(s) in a RNA molecule
A) 5
B) 4
C) 3
D) 2 -- answer--3
One type of virus that infects bacteria is called a
,A) phage
B) mage
C) rhinovirus
D) coronavirus -- answer--A) phage
The copying mechanism of DNA is most like
A) using a photographic negative to make a positive image
B) mixing flour, sugar, and water to make bread dough
C) dripping water out of faucet
D) carving a figure out of wood -- answer--A) using a photographic negative to make a positive
image
Which of the following statements regarding a DNA double helix is always true?
A) the amount of adenine is equal to the amount of uracil, and the amount of guanine is equal
to the amount of cytosine
B) the amount of adenine is equal to the amount of guanine, and the amount of thymine is
equal to the amount of cytosine
C) the amount of adenine is equal to the amount of cytosine, and the amount of guanine is
equal to the amount of thymine
D) the amount of adenine is equal to the amount of thymine, and the amount of guanine is
equal to the amount of cytosine -- answer--D) the amount of adenine is equal to the amount of
thymine, and the amount of guanine is equal to the amount of cytosine
Experiments have demonstrated that the "words" of the genetic code (the units that specify
amino acids) are
, A) two nucleotides sequence
B) sequences of anticodon
C) three nucleotides sequences
D) nucleotides sequences of various lengths
E) single nucleotides -- answer--C) three nucleotides sequences
Hiv does the greatest damage to
A) pancreatic cells
B) white blood cells
C) the adrenal glands
D) red blood cells
E) nervous tissue -- answer--B) white blood cells
A physical or chemical agent that changes the nucleotide sequence of DNA is called a
A) codon
B) anticodon
C) mutagen
D) terminator
E) transposon -- answer--C) mutagen
Which of the following takes place during translation?
A) the conversion of genetic information from the language of nucleic acids to the language of
proteins
B) the conversion of genetic information form DNA nucleotides into RNA nucleotides
COMPLETE BUNDLE (2025/2026) | Actual Exams |
Introductory & Comprehensive Biology
Assessment
The chromosome theory of inheritance states that
A) chromosomes that exhibit mutations are the source of genetic variation
B) the behavior of chromosomes during meiosis and fertilization accounts for patterns of
inheritance
C) the behavior of chromosomes during mitosis accounts for inheritance patterns
D) humans have 46 chromosomes -- answer--B) the behavior of chromosomes during meiosis
and fertilization accounts for patters of inheritance
The alleles of a gene are found at ______ chromosomes
A) the same locus on non homologous
B) different loci on homologous
C) different loci on non homologous
D) the same locus on homologous -- answer--D) the same locus on homologous
DNA polymerase
A) joins nucleotides to produce new polymers of RNA
,B) reads the RNA strand, and adds the complementary nitrogen bases to make new RNA strand
C) Stretches the DNA polymers to make new DNA strands
D) joins the two DNA fragments
E) reads the DNA strands, and adds the complementary nucleotides to amen a new DNA strand
-- answer--E) reads the DNA strands, and adds the complementary nucleotides to amen a new
DNA strand
Why does the recessive allele disorder, such as color blindness, that is linked to human sex
chromosomes X affect mostly males? Because, it is more likely that
A) females have a greater probability of inheriting two recessive alleles than one allele to
express the disorder
B) males need only one recessive allele from his father to express the disorder
C) females have a lesser probability of inheriting one recessive allele than two alleles to express
the disorder
D) males need two recessive alleles from the father and the mother to express the disorder
E) males need only one recessive allele from his mother to express the disorder -- answer--E)
males need only one recessive allele from his mother to express the disorder
The directions for each amino acid in a polypeptide are indicated by a codon that consists of
_____ nucleotide(s) in a RNA molecule
A) 5
B) 4
C) 3
D) 2 -- answer--3
One type of virus that infects bacteria is called a
,A) phage
B) mage
C) rhinovirus
D) coronavirus -- answer--A) phage
The copying mechanism of DNA is most like
A) using a photographic negative to make a positive image
B) mixing flour, sugar, and water to make bread dough
C) dripping water out of faucet
D) carving a figure out of wood -- answer--A) using a photographic negative to make a positive
image
Which of the following statements regarding a DNA double helix is always true?
A) the amount of adenine is equal to the amount of uracil, and the amount of guanine is equal
to the amount of cytosine
B) the amount of adenine is equal to the amount of guanine, and the amount of thymine is
equal to the amount of cytosine
C) the amount of adenine is equal to the amount of cytosine, and the amount of guanine is
equal to the amount of thymine
D) the amount of adenine is equal to the amount of thymine, and the amount of guanine is
equal to the amount of cytosine -- answer--D) the amount of adenine is equal to the amount of
thymine, and the amount of guanine is equal to the amount of cytosine
Experiments have demonstrated that the "words" of the genetic code (the units that specify
amino acids) are
, A) two nucleotides sequence
B) sequences of anticodon
C) three nucleotides sequences
D) nucleotides sequences of various lengths
E) single nucleotides -- answer--C) three nucleotides sequences
Hiv does the greatest damage to
A) pancreatic cells
B) white blood cells
C) the adrenal glands
D) red blood cells
E) nervous tissue -- answer--B) white blood cells
A physical or chemical agent that changes the nucleotide sequence of DNA is called a
A) codon
B) anticodon
C) mutagen
D) terminator
E) transposon -- answer--C) mutagen
Which of the following takes place during translation?
A) the conversion of genetic information from the language of nucleic acids to the language of
proteins
B) the conversion of genetic information form DNA nucleotides into RNA nucleotides
