WorksheetsMitosis vs Meiosis
Total questions: 16
Worksheet time: 32mins
In the early 1900s, Thomas Hunt Morgan was among the first scientists to contribute to the chromosome theory
of heredity. Morgan’s investigations into heredity in fruit flies led him to propose that the event represented in the
diagram sometimes occurs. Which statement about the event represented in the diagram is valid?
The event represents RNA translation in the smooth endoplasmic reticulum.
The event takes place in bacterial cells.
The events produce genetically identical daughter cels
The event provides genetic diversity in eukaryotic cells.
Which of the following is the correct chromosome number of an egg cell?
Haploid
Diploid
Polyploid
Multiploid
Gametes produced by an organism contain a combination of genes from that organism. In every gamete, this combination is —
the same because it is created from the same DNA
the same because chromosomes are copied prior to meiosis
different due to DNA replication prior to mitosis
different due to independent assortment during meiosis
Genetically unique daughter cells are produced by what process?
Meiosis
Mitosis
Fertilization
Transcription
Which of the following best represents the chromosome number of a zygote?
Haploid
Diploid
Polyploid
Multiploid
The diagram illustrates a process that occurs often during meiosis. When does the process occur and what is the most likely result of this process is —
Prophase 2 - mutation in gametes
Prophase 1 - genetically divers gametes
Prophase 2 - new types of cells forming
Prophase 1 - cancer in the ovaries
There are 48 chromosomes in each muscle cell of a rabbit. How many chromosomes are found in one of its gametes?
12
24
48
96
Which of the following is not an effect of meiosis?
Causes more genetic diversity in sexually reproductive species
Reduces the number of offspring affected by genetic mutations
Ensures the same number and types of chromosomes in each individual
Improves the chances of species survival due to variability in individual strengths
The diagram above shows the process of meiosis. The segregation that occurs during meiosis results in a —
decrease in the total number of cells per organism
reduction in the number of chromosomes per cell
single fertilized egg cell
group of genetically identical cells
The above process is known as
Mitosis
Meiosis
Endocytosis
Phagocytosis
The diagram shows a diploid cell with two homologous pairs of chromosomes. Due to independent assortment, the possible allele combinations that could be found in gametes produced by meiosis are —
Bb, Dd, BB, and DD
BbDd and BDbd
Bd and bD
Bd, BD, bD, and bd
A specialized cell cycle known as meiosis plays a significant role in sexual reproduction. Which of the following is not an important result of this specialized cell division process?
Genetic Variation
Production of sex cells
Reduction of genetic material in daughter cells
Growth
Which of the following is one similarity between mitosis and meiosis?
2 daughter cells are formed
4 daughter cells are formed
a spindle apparatus is formed
crossing-over occurs
Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?
Gametes have a single function which requires less DNA to perform the function compared to somatic cells.
reduction in the number of chromosomes reduces the chances for mutations that would affect the offspring.
The offspring will have the correct number of chromosomes when the sperm and egg are joined.
The chromosomes in gametes are already replicated strands of DNA which returns the number of
chromosomes to the original amount.
The diagram demonstrates how crossing-over contributes to genetic variety during meiosis. What is the final destination of the homologous pair?
After meiosis 2 independent assortment will create four unique cells each with one chromatid
After meiosis 1 independent assortment will create two unique cells each with one chromatid
After meiosis 2 independent assortment will create four unique cells each with two chromatid
After meiosis 1 independent assortment will create four unique cells each with two chromatid
The karyotype, or chromosomal profile, for humans is shown. A karyotype can be used to investigate genetic disorders. The chemical colchicine is used in the production of karyotypes. Colchicine prevents spindle fibers from forming during the cell cycle. What is a result of preventing spindle fibers from forming?
The cell cycle skips G0 phase and repeats G1 phase.
Mitotic division is skipped, and the cell cycle proceeds to cytokinesis.
Mitotic division stops in metaphase and cannot proceed to anaphase.
The cell cycle skips S phase and proceeds to G2 phase.
