Which of these processes does NOT require DNA replication?
A. Mitosis
B. Meiosis
C. Cell Division
D. Cell Growth

Why can the deletion of a single nitrogen base in DNA be harmful to an organism?
A. Deletion causes chromosomes to join backwards or to join the wrong chromosomes.
B. Deletion causes nearly every amino acid in the protein to change.
C. Deletion causes a gamete to have an extra chromosome.
D. Deletion causes chromosomes to join with the wrong chromosome.

Which of the following processes does NOT involve ribonucleic acid?
A. Replication
B. Translation
C. Transcription
D. Codon attachment to a ribosomes

Which processes results in an RNA copy of a DNA strand?
A. translation
B. transcription
C. replication
D. mitosis

Which does NOT describe restriction enzymes?
A. they are bacterial proteins.
B. they have the ability to cut double-stranded DNA.
C. they can carry DNA from one species into a host cell.
D. there are hundreds of restriction enzymes.

Which series correctly sequences interactions in nature from larger to smallest?
A. population, ecosystem, community
B. species, organism, community
C. ecosystem, community, population
D. community, population, ecosystem

Which terms are NOT related?
A. water cycle- precipitation
B. phosphorus cycle- evaporation
C. nitrogen cycle- nitrogen fixation
D. carbon cycle- photosynthesis

A manufacturing plant is located on the bank of a river. One day, toxic chemicals from the plant accidentally spilled into the river. Fish absorbed some of these chemicals into their bodies. Later, a hawk living near the river was found to have the same toxic chemicals in its system. Which statement best explains why?
A. the chemicals entered the air.
B. the chemicals entered the food chain.
C. the chemicals were contagious.
D. the chemicals commonly are found in the environment.

Based on what you’ve learned about the cycling of material through ecosystems, predict which material would most likely be added to a chemical fertilizer to increae soil productivity.
A. H2O
B. CO2
C. N2
D. NO3

Thank you so much

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