Biology - EOC Review

This diagram represents a cell:

Which organelle is the site where amino acids are synthesized into proteins?
1. 1
2. 2
3. 3
4. 4
This diagram represents the bone structures of the front limbs of four different animals.

What do the similarities of the structures suggest about these organisms?
1. They live in the same environment.
2. They grow at the same rate.
3. They evolved from a common ancestor.
4. They live for the same length of time.
This chart represents amino acids that are coded from different combinations of mRNA codons.

Which amino acid sequence can be coded from the DNA sequence CAG TAG CGA?
1. Valine — Isoleucine — Alanine
2. Valine — Isoleucine — Glycine
3. Valine — Aspartic Acid — Alanine
4. Valine — Phenylalanine — Alanine
This diagram represents samples of DNA that were cut with a restriction enzyme during DNA fingerprinting in a crime lab.

Which technique was used to produce these bands?
1. cloning
2. gel electrophoresis
3. gene splicing
4. genetic engineering
This chart represents characteristics of four different plants.

Which plant is most likely a gymnosperm?
1. Plant 1
2. Plant 2
3. Plant 3
4. Plant 4
This diagram shows a food web of a meadow.

Due to insecticides, the cricket population is greatly reduced. Which population is most affected by this event?
1. Mouse
2. Hawk
3. Grass
4. Frog
This diagram shows an enzyme-substrate complex.

Which is represented by Structure X?
1. enzyme
2. substrate
3. complex
4. product
This chart shows a list of messenger RNA codons.

A strand of DNA with the sequence AAC AAG CCC undergoes a mutation, and the first A
is changed to a C. How will this mutation affect the amino acid sequence?
1. Two amino acids will change.
2. One amino acid will change
3. The amino acids will remain the same.
4. All of the amino acids will change.
A scientist performs an experiment to see if acids have an effect on the health of a particular type of plant. Three sets of plants were treated with acidic solutions of known pH while the control set was treated with a solution of neutral pH 7.

Which is the best conclusion for this experiment?
1. Acid has no effect on the health of this type of plant.
2. High acidity is helpful to this type of plant.
3. Low acidity is harmful to this type of plant.
4. High acidity is harmful to this type of plant.
Which graph represents the maximum carrying capacity of a bacterial colony?
1. A
2. B
3. C
4. D
This chart shows the results of several crosses with white-feathered chickens and dark-feathered chickens.

Which cross would be represented as Aa × aa, where (A) represents a dominant allele and
(a) represents a recessive allele?
1. Cross 1
2. Cross 2
3. Cross 3
4. Cross 4
This diagram shows a diploid cell with two pairs of homologous chromosomes.

Due to independent assortment, what is the possible genetic make-up of gametes produced by this organism?
1. SsTt
2. Ss, Tt
3. S, s, T, t
4. ST, St, sT, st
This graph represents changes in human population over a period of 2,000 years.

What can be concluded from the graph?
1. Human population grew at a constant rate over the last 2,000 years.
2. Human population grew exponentially over the past 200 years.
3. Human population will begin to level off around 2010.
4. Human population reached its carrying capacity around the year 1900.
This diagram shows the flow of carbon in a terrestrial ecosystem.

Which will most likely happen if the decomposers are removed from the carbon cycle?
1. The amount of carbon dioxide in the atmosphere will decrease.
2. The amount of carbon dioxide in the atmosphere will increase.
3. The amount of carbon dioxide used by producers will increase.
4. The amount of carbon dioxide needed by consumers will decrease.
A scientist performs an experiment to see if acids have an effect on the health of a particular type of plant. Three sets of plants were treated with acidic solutions of known pH while the control set was treated with a solution of neutral pH 7.

Which is the best conclusion for this experiment?
1. Acid has no effect on the health of this type of plant.
2. High acidity is helpful to this type of plant.
3. Low acidity is harmful to this type of plant.
4. High acidity is harmful to this type of plant.

Biology - EOC Review

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