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HESI A2 Entrance Exam Biology Questions With Complete Solutions
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HESI A2 Entrance Exam Biology Questions With Complete Solutions
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HESI A2 Entrance Exam Biology Questions With CompleteSolutions
A pea plant has alleles for the dominant tall gene (T) and the
recessive short gene (t). Therefore, it appears as Tt. Which of the
following will correctly describe its phenotype if there is
complete dominance? And which describes incomplete
dominance? (complete, incomplete)
A)Tall, Tall
B)Average. Tall
C)Tall, Average
D)Tall, Short Correct Answer C)Tall, Average
A scientist conducts an experiment to discover the effect of
music on plant growth. He hypothesizes that the music will help
plants grow at a faster rate than plants without music. By the end
of the experiment, plants grown with music playing grew to an
average height of 5.6 inches, while plants grown without music
playing grew to an average height of 2.3 inches. Which of the
following is the scientist's correct conclusion?
A)All plants grow better with music.
B)In the experiment, plants grown with music grew better than
those grown without it.
C)In the experiment, plants grown without music grew better
than those grown without it.
, D)All plants grow better without music. Correct Answer B)In
the experiment, plants grown with music grew better than those
grown without it.
A scientist is proposing an experiment to study the effect of a
certain chemical on rat brain development. The scientist believes
that this chemical will enhance the rats' brain development.
Which of the following terms describes this step of the scientific
process?
A)Hypothesis.
B)Experiment.
C)Analysis.
D)Conclusion. Correct Answer A)Hypothesis.
All genes can be described using the Punnett Square method.
True or False?
A)True
B)False Correct Answer B)False
An organism that has a genotype of two dominant alleles for one
gene is:
A)Heterozygous.
B)Homozygous.
C)Multiparous.
D)Nulliparous Correct Answer B)Homozygous.
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