1|Page
Bio 1108 Exam 1 Newest 2025/2026 Complete
Questions And Correct Detailed Answers (Verified
Answers) |Newest Exam Version!!!
population - Answer-any group of organisms coexisting at
the same time and place that are capable of interbreeding
with one another
gene pool - Answer-all of the alleles at all loci in the
population
allele fixation - Answer-when a gene has only one allele.
when one allele of a gene becomes the only allele, while
the alternatives are eliminated from the population.
Why does meiosis result in more genetic variation than
can be explained by mutation alone?
A. meiosis II
B. The egg and sperm have more chromosomes.
C. crossing over
D. Not all the DNA gets replicated.
,2|Page
E. The mutation rate is always higher than expected. -
Answer-C. crossing over
At the end of mitosis, daughter cells are ___, whereas at
the end of meiosis, daughter cells are ___.
A. haploid; diploid
B. diploid; haploid
C. diploid; polyploid
D. polyploid; haploid
E. haploid; haploid - Answer-B. diploid; haploid
A zygote is:
A. diploid.
B. haploid.
C. polyploid.
D. All of the above.
E. None of the above. - Answer-A. diploid
A parent cell divides to form two genetically identical
daughter cells in the process of mitosis. For mitosis to take
place _____.
,3|Page
A. the parent cell must first dissolve its nuclear membrane
B. the parent cell must first replicate its entire genome
C. the parent cell must first achieve a specified size
D. the parent cell must divide its DNA in half so that each
daughter cell gets only the genes it needs - Answer-C. the
parent cell must first achieve a specified size
Which one of the following statements best represents the
relationship between cellular respiration and
photosynthesis?
A. Photosynthesis stores energy in organic molecules,
while respiration releases it.
B. Photosynthesis occurs only during the day and
respiration occurs only at night.
C. Respiration occurs only in animals and photosynthesis
occurs only in plants.
D. Respiration stores energy in organic molecules, while
photosynthesis releases it.
E. Photosynthesis reverses the biochemical pathways of
respiration. - Answer-A. Photosynthesis stores energy in
organic molecules, while respiration releases it
, 4|Page
When photosynthesis is fully operational under conditions
of intense light, the pH of the thylakoid lumen may be as
much as three full pH units lower than the stroma of the
chloroplast. That means that there are ____________
hydrogen ions in the thylakoid compared to the stroma.
A. 1,000 times more
B. 100 times more
C. 3 times more
D. 3 times fewer - Answer-A. 1,000 times more
Photosynthesis is the pathway used to synthesize
carbohydrates from:
A. sunlight.
B. carbon dioxide.
C. oxygen.
D. sunlight, water and carbon dioxide.
E. sunlight, carbon dioxide, and oxygen. - Answer-D.
sunlight, water and carbon dioxide
Arrange the steps in the Calvin cycle in order from earliest
to latest.
A. carboxylation, reduction, regeneration
Bio 1108 Exam 1 Newest 2025/2026 Complete
Questions And Correct Detailed Answers (Verified
Answers) |Newest Exam Version!!!
population - Answer-any group of organisms coexisting at
the same time and place that are capable of interbreeding
with one another
gene pool - Answer-all of the alleles at all loci in the
population
allele fixation - Answer-when a gene has only one allele.
when one allele of a gene becomes the only allele, while
the alternatives are eliminated from the population.
Why does meiosis result in more genetic variation than
can be explained by mutation alone?
A. meiosis II
B. The egg and sperm have more chromosomes.
C. crossing over
D. Not all the DNA gets replicated.
,2|Page
E. The mutation rate is always higher than expected. -
Answer-C. crossing over
At the end of mitosis, daughter cells are ___, whereas at
the end of meiosis, daughter cells are ___.
A. haploid; diploid
B. diploid; haploid
C. diploid; polyploid
D. polyploid; haploid
E. haploid; haploid - Answer-B. diploid; haploid
A zygote is:
A. diploid.
B. haploid.
C. polyploid.
D. All of the above.
E. None of the above. - Answer-A. diploid
A parent cell divides to form two genetically identical
daughter cells in the process of mitosis. For mitosis to take
place _____.
,3|Page
A. the parent cell must first dissolve its nuclear membrane
B. the parent cell must first replicate its entire genome
C. the parent cell must first achieve a specified size
D. the parent cell must divide its DNA in half so that each
daughter cell gets only the genes it needs - Answer-C. the
parent cell must first achieve a specified size
Which one of the following statements best represents the
relationship between cellular respiration and
photosynthesis?
A. Photosynthesis stores energy in organic molecules,
while respiration releases it.
B. Photosynthesis occurs only during the day and
respiration occurs only at night.
C. Respiration occurs only in animals and photosynthesis
occurs only in plants.
D. Respiration stores energy in organic molecules, while
photosynthesis releases it.
E. Photosynthesis reverses the biochemical pathways of
respiration. - Answer-A. Photosynthesis stores energy in
organic molecules, while respiration releases it
, 4|Page
When photosynthesis is fully operational under conditions
of intense light, the pH of the thylakoid lumen may be as
much as three full pH units lower than the stroma of the
chloroplast. That means that there are ____________
hydrogen ions in the thylakoid compared to the stroma.
A. 1,000 times more
B. 100 times more
C. 3 times more
D. 3 times fewer - Answer-A. 1,000 times more
Photosynthesis is the pathway used to synthesize
carbohydrates from:
A. sunlight.
B. carbon dioxide.
C. oxygen.
D. sunlight, water and carbon dioxide.
E. sunlight, carbon dioxide, and oxygen. - Answer-D.
sunlight, water and carbon dioxide
Arrange the steps in the Calvin cycle in order from earliest
to latest.
A. carboxylation, reduction, regeneration
