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LSUE Biology 1001 Final Questions with
Detailed Verified Answers
Question: How many generations does it take to develop a new plant species
by polyploid?
A) one
B) two
C) ten
D) about twenty
Answer: A) one
Question:Both mitosis and meiosis are preceded by
A) prometaphase
B) interphase
C) prophase
D) telophase
Answer: B) interphase
Question:Which of the following statements regarding the cell-cycle control
system is false?
A) The cell-cycle control system receives messages from outside the cell that
influence cell division
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B) The cell-cycle control system triggers and controls major events in the cell
cycle
C) The cell-cycle control system includes three key checkpoints to complete a
cell cycle
D) The cell-cycle control system operates independently of the growth factors
Answer: D) The cell-cycle control system operates independently of the
growth factors
Question:Cancer is not usually inherited because
A) the chromosomal changes in cancer are usually confined to somatic cells
B) people with cancer usually die before reproducing
Answer: A) the chromosomal changes cancer are usually confined to somatic
cells
Question:Sister chromatids are
A) found right after a cell divides
B) joined together at a centromere
C) made only of DNA
D) unique to prokaryotes
Answer: B) joined together at a centromere
Question:When animal cells are grown in a Petri dish, they typically stop
diving once they have formed a single, unbroken layer on the bottom of the
dish. This arrest of division is an example of
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A) cell constraint
B) density-dependent inhibition
C) cell division repression
D) growth factor desensitization
Answer: B) density dependent inhibition
Question:The process by which the cytoplasm of a eukaryotic cell divides to
produce two cells is called
A) mitosis
B) cytokinesis
C) binary fission
D) telophase
Answer: B) cytokinesis
Question:Which of the following must occur for a plant or animal to grow and
develop normally?
A) The organism must receive a supply of the appropriate hormones from its
parents
B) The organism must be able to control the timing and rate of cell division in
different parts of its body
C) Sufficient light must be available to stimulate cell division
D) Sufficient oxygen must be available to stimulate cell division
Answer: B) The organism must be able to control the timing and rate of cell
division in different parts of its body
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Question:With the exception of identical twins, siblings who have the same
two biological parents are likely to look similar, but not identical, to each other
because they have
A) identical chromosomes, but different genes
B) identical genes but different chromosomes
C) the same combination of traits, but different genes
D) a similar but not identical combination of genes
Answer: D) a similar but not identical combination of genes
Question:Which of the following is a feature of plant cell division that
distinguishes it from animal cell division?
A) formation of a cell plate
B) formation of a cleavage furrow
C) lack of cytokinesis
D) production of four (rather than two) new cells per mitotic division
Answer: A) formation of a cell plate
Question:Looking into your microscope, you spot an unusual cell. Instead of
the typical rounded cell shape, the cell has a very narrow middle separating
two bulging ends. It sort of looks like the number 8! Then you realize that this
cell is
A) undergoing cytokinesis
B) in the S phase of interphase.
C) in the G1 phase of interphase.
LSUE Biology 1001 Final Questions with
Detailed Verified Answers
Question: How many generations does it take to develop a new plant species
by polyploid?
A) one
B) two
C) ten
D) about twenty
Answer: A) one
Question:Both mitosis and meiosis are preceded by
A) prometaphase
B) interphase
C) prophase
D) telophase
Answer: B) interphase
Question:Which of the following statements regarding the cell-cycle control
system is false?
A) The cell-cycle control system receives messages from outside the cell that
influence cell division
, Page | 2
B) The cell-cycle control system triggers and controls major events in the cell
cycle
C) The cell-cycle control system includes three key checkpoints to complete a
cell cycle
D) The cell-cycle control system operates independently of the growth factors
Answer: D) The cell-cycle control system operates independently of the
growth factors
Question:Cancer is not usually inherited because
A) the chromosomal changes in cancer are usually confined to somatic cells
B) people with cancer usually die before reproducing
Answer: A) the chromosomal changes cancer are usually confined to somatic
cells
Question:Sister chromatids are
A) found right after a cell divides
B) joined together at a centromere
C) made only of DNA
D) unique to prokaryotes
Answer: B) joined together at a centromere
Question:When animal cells are grown in a Petri dish, they typically stop
diving once they have formed a single, unbroken layer on the bottom of the
dish. This arrest of division is an example of
, Page | 3
A) cell constraint
B) density-dependent inhibition
C) cell division repression
D) growth factor desensitization
Answer: B) density dependent inhibition
Question:The process by which the cytoplasm of a eukaryotic cell divides to
produce two cells is called
A) mitosis
B) cytokinesis
C) binary fission
D) telophase
Answer: B) cytokinesis
Question:Which of the following must occur for a plant or animal to grow and
develop normally?
A) The organism must receive a supply of the appropriate hormones from its
parents
B) The organism must be able to control the timing and rate of cell division in
different parts of its body
C) Sufficient light must be available to stimulate cell division
D) Sufficient oxygen must be available to stimulate cell division
Answer: B) The organism must be able to control the timing and rate of cell
division in different parts of its body
, Page | 4
Question:With the exception of identical twins, siblings who have the same
two biological parents are likely to look similar, but not identical, to each other
because they have
A) identical chromosomes, but different genes
B) identical genes but different chromosomes
C) the same combination of traits, but different genes
D) a similar but not identical combination of genes
Answer: D) a similar but not identical combination of genes
Question:Which of the following is a feature of plant cell division that
distinguishes it from animal cell division?
A) formation of a cell plate
B) formation of a cleavage furrow
C) lack of cytokinesis
D) production of four (rather than two) new cells per mitotic division
Answer: A) formation of a cell plate
Question:Looking into your microscope, you spot an unusual cell. Instead of
the typical rounded cell shape, the cell has a very narrow middle separating
two bulging ends. It sort of looks like the number 8! Then you realize that this
cell is
A) undergoing cytokinesis
B) in the S phase of interphase.
C) in the G1 phase of interphase.
