HESI A2 ENTRANCE EXAM BIOLOGY
QUESTIONS AND VERIFIED ANSWERS;
GET IT 100% ACCURATE
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.
QUESTIONS AND VERIFIED ANSWERS;
GET IT 100% ACCURATE
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.
