Middle School Life Science : Middle School Life Science
Study concepts, example questions & explanations for Middle School Life Science
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Example Questions
Example Question #141 : Middle School Life Science
What process does this image represent?
nuclear fission
mitosis
DNA replication
meiosis
mitosis
The answer is "mitosis."
Mitosis is a process where a parent cell divides to produce two identical daughter cells. The major purpose of mitosis is for growth and to replace worn out cells. Because the daughter cells contain twice the genetic material of the parent cell, they are referred to as “diploid.”
Some key differences between meiosis and mitosis are: Mitosis involves the division of body cells, while meiosis involves the division of sex cells. Two daughter cells are produced in mitosis, while four are produced in meiosis. Mitosis daughter cells are diploid, but meiosis daughter cells are haploid. Meiosis creates more genetic variation than mitosis.
Example Question #142 : Middle School Life Science
Which of the following best describes the cells produced at the end of the process mitosis?
2 diploid daughter cells
4 diploid daughter cells
2 haploid daughter cells
4 haploid daughter cells
2 diploid daughter cells
Mitosis is a process where a parent cell divides to produce two identical daughter cells. The major purpose of mitosis is for growth and to replace worn out cells. Because the daughter cells contain twice the genetic material of the parent cell, they are referred to as “diploid.”
Some key differences between meiosis and mitosis are: Mitosis involves the division of body cells, while meiosis involves the division of sex cells. Two daughter cells are produced in mitosis, while four are produced in meiosis. Mitosis daughter cells are diploid, but meiosis daughter cells are haploid. Meiosis creates more genetic variation than mitosis.
Example Question #143 : Middle School Life Science
Mitosis is a form of _________.
both of these
asexual reproduction
neither of these
cell division
both of these
The answer is "both of these."
Mitosis is a process where a parent cell divides to produce two identical daughter cells. The major purpose of mitosis is for growth and to replace worn out cells. Because the daughter cells contain twice the genetic material of the parent cell, they are referred to as “diploid.”
Some key differences between meiosis and mitosis are: Mitosis involves the division of body cells, while meiosis involves the division of sex cells. Two daughter cells are produced in mitosis, while four are produced in meiosis. Mitosis daughter cells are diploid, but meiosis daughter cells are haploid. Meiosis creates more genetic variation than mitosis.
Example Question #144 : Middle School Life Science
Which of these is NOT a difference between mitosis and meiosis?
Mitosis involves the division of body cells, while meiosis involves the division of sex cells.
Mitosis daughter cells are diploid, but meiosis daughter cells are haploid.
Two daughter cells are produced in mitosis, while four are produced in meiosis
Mitosis creates more genetic variation than meiosis
Mitosis creates more genetic variation than meiosis
The answer is "Mitosis creates more genetic variation than meiosis" because that statement is false.
Mitosis is a process where a parent cell divides to produce two identical daughter cells. The major purpose of mitosis is for growth and to replace worn out cells. Because the daughter cells contain twice the genetic material of the parent cell, they are referred to as “diploid.”
Some key differences between meiosis and mitosis are: Mitosis involves the division of body cells, while meiosis involves the division of sex cells. Two daughter cells are produced in mitosis, while four are produced in meiosis. Mitosis daughter cells are diploid, but meiosis daughter cells are haploid. Meiosis creates more genetic variation than mitosis.
Example Question #145 : Middle School Life Science
Suppose a species of insect has 96 chromosomes. How many chromosomes will each daughter cell have after mitosis of an insect cell is complete?
none of these
96
192
48
96
The answer is "96" because the daughter cells will be identical to the parent cells.
Mitosis is a process where a parent cell divides to produce two identical daughter cells. The major purpose of mitosis is for growth and to replace worn out cells. Because the daughter cells contain twice the genetic material of the parent cell, they are referred to as “diploid.”
Some key differences between meiosis and mitosis are: Mitosis involves the division of body cells, while meiosis involves the division of sex cells. Two daughter cells are produced in mitosis, while four are produced in meiosis. Mitosis daughter cells are diploid, but meiosis daughter cells are haploid. Meiosis creates more genetic variation than mitosis.
Example Question #146 : Middle School Life Science
Which of the following cell types is formed in mitosis?
sex cells
somatic cells
egg cells
zygotes
somatic cells
The answer is "somatic cells"
Mitosis is a process where a parent cell divides to produce two identical daughter cells. The major purpose of mitosis is for growth and to replace worn out cells. Because the daughter cells contain twice the genetic material of the parent cell, they are referred to as “diploid.”
Some key differences between meiosis and mitosis are: Mitosis involves the division of body cells, while meiosis involves the division of sex cells. Two daughter cells are produced in mitosis, while four are produced in meiosis. Mitosis daughter cells are diploid, but meiosis daughter cells are haploid. Meiosis creates more genetic variation than mitosis.
Example Question #147 : Middle School Life Science
Which answer choice best describes where mitosis occurs?
in brain cells
in the reproductive organs
in the muscle tissue only
where the body needs replacement cells
where the body needs replacement cells
Mitosis is a process where a parent cell divides to produce two identical daughter cells. The major purpose of mitosis is for growth and to replace worn out cells. Because the daughter cells contain twice the genetic material of the parent cell, they are referred to as “diploid.”
Some key differences between meiosis and mitosis are: Mitosis involves the division of body cells, while meiosis involves the division of sex cells. Two daughter cells are produced in mitosis, while four are produced in meiosis. Mitosis daughter cells are diploid, but meiosis daughter cells are haploid. Meiosis creates more genetic variation than mitosis.
Example Question #148 : Middle School Life Science
When a sea star loses its arm, it undergoes a process called "regeneration" to replace the arm with new cells identical to the old ones. Which process is responsible for regeneration at a cellular level?
transpiration
mitosis
meiosis
respiration
mitosis
The answer is "mitosis."
Mitosis is a process where a parent cell divides to produce two identical daughter cells. The major purpose of mitosis is for growth and to replace worn out cells. Because the daughter cells contain twice the genetic material of the parent cell, they are referred to as “diploid.”
Some key differences between meiosis and mitosis are: Mitosis involves the division of body cells, while meiosis involves the division of sex cells. Two daughter cells are produced in mitosis, while four are produced in meiosis. Mitosis daughter cells are diploid, but meiosis daughter cells are haploid. Meiosis creates more genetic variation than mitosis.
Example Question #149 : Middle School Life Science
A patient who has lung cancer is not able to regulate the growth of new cells in the lungs - thus forming a tumor. Cancer cells are most closely related to what process of cell division?
fertilization
recombination
mitosis
meiosis
mitosis
The answer is "mitosis."
Mitosis is a process where a parent cell divides to produce two identical daughter cells. The major purpose of mitosis is for growth and to replace worn out cells. Because the daughter cells contain twice the genetic material of the parent cell, they are referred to as “diploid.”
Some key differences between meiosis and mitosis are: Mitosis involves the division of body cells, while meiosis involves the division of sex cells. Two daughter cells are produced in mitosis, while four are produced in meiosis. Mitosis daughter cells are diploid, but meiosis daughter cells are haploid. Meiosis creates more genetic variation than mitosis.
Example Question #1 : Punnett Squares
The allele for blue eyes is "t" while the allele for brown eyes is "T". What percentage of offspring produced by two parents with blue eyes would also have blue eyes?
25%
50%
100%
0%
100%
The answer is 100%. Since both parents had to have homozygous recessive alleles for blue eyes in order to express them, they both must have "tt" for a genotype. The following punnet square shows the results.
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