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Biology cumulative exam with Questions and Answers Latest Update 2025
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Biology cumulative exam with Questions and Answers Latest Update 2025
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Biology cumulative exam with Questions andAnswers Latest Update 2025
Mendel was able to study seven traits in all the pea plants in each generation. Which of
his hypotheses allowed him to analyze each trait separately?
1. If two different alleles for a gene occur together, one of the alleles may be expressed
while the other is hidden.
2. When gametes are formed, each gamete carries only one allele for the gene.
3. There are alternate versions of a alleles called genes.
4. For each inherited trait, there is only one copy of the gene that codes for that trait. -
✔✔When gametes are formed, each gamete carries only one allele for the gene.
A lion eating a zebra is an example of which characteristic of life?
1. having cells
2. responding to the environment
3. using energy
4. growing and developing - ✔✔using energy
Photo 51 is a picture of the structure of DNA that was used to create a model of DNA.
Who created the photo?
1. James Watson and Francis Crick
2. Erwin Chargaff
3. Rosalind Franklin
4. Friedrich Miescher - ✔✔Rosalind Franklin
, Two cells in the same organism differ only in the number of chloroplasts they contain.
The first cell has multiple chloroplasts, and the second cell has very few. What would
most likely characterize these cells?
1. There would be no difference between the functioning of the cells because the
chloroplasts are not essential cell structures.
2. The second cell would become larger because it would have fewer chloroplasts
regulating its size and shape.
3. The second cell would shrink because it would not be able to store water and
maintain cell shape.
4. The second cell would not be able to produce as much food because it could not
capture sunlight. - ✔✔The second cell would not be able to produce as much food
because it could not capture sunlight.
What do all cellular activities in living organisms use as a source of energy?
1. ATP
2. lactic acid
3. pyruvic acid
4. glucose - ✔✔ATP
Which statement best describes the overall change that occurs as a result of mitosis?
1. One cell becomes two cells that have identical copies of DNA.
2. One cell becomes two cells that have different copies of DNA.
3. Two cells become two cells that have identical copies of DNA.
4. Two cells become two cells that have different copies of DNA. - ✔✔One cell
becomes two cells that have identical copies of DNA.
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