WorksheetsStudy Guide DNA, Mitosis, Meiosis
Total questions: 38
Worksheet time: 19mins
Terrie is making a model of DNA. Which of these shapes illustrates how her model should look?
Dylan is listing the molecules that make up DNA. Which of these substances should he place under the heading NUCLEOTIDE BASE in DNA?
adenine
phosphate
sugar
uracil
The diagram below shows an original sequence of DNA and then a mutated sequence of DNA. Which type of mutation took place?
deletion
insertion
substitution
translation
Alice is studying biological molecules. She has isolated a molecule and identified the nucleotide bases adenine, cytosine, guanine, and thymine. Which molecule did Alice isolate?
DNA
mRNA
rRNA
tRNA
Rachel is analyzing a DNA sample to identify base pairs. Her results show that 40% of the sample is adenine. Which other base must also make up 40% of the sample?
Cytosine makes up 40% of the sample
Guanine makes up 40% of the sample.
Thymine makes up 40% of the sample.
Uracil makes up 40% of the sample.
The following sequence of letters represents the order of bases in a single strand of DNA.
C-T-T-A-G-G-C-T-T-A-C-C-A
Which of these sequences would be the complementary strand that forms during replication?
G-A-A-T-C-C-G-A-A-T-G-G-T
C-T-T-A-G-G-C-T-T-A-C-C-A
T-C-C-G-A-A-T-C-C-G-T-T-G
A-G-G-C-T-T-A-G-G-C-A-A-C
Which claim correctly defines DNA?
It is a type of molecule that performs the main functions of cells.
It is a type of molecule composed mostly of amino acids.
It is a type of molecule that speeds up the rate of a chemical reaction.
It is a type of molecule that determines the traits that an individual inherits.
Which of the following properties of DNA was discovered by James Watson and Francis Crick?
DNA is composed of four bases.
DNA looks like a long, twisted ladder.
DNA nucleotides always combine in the same pairs.
DNA has a doughnut shape when viewed using x-ray diffraction.
The images below represent the four bases present in DNA. Which of the following correctly identifies a base pair?
A-T
A-G
G-T
C-T
Which of these effects could not be directly caused by mutations in human DNA?
cancer
an injury
a genetic disorder
an inherited disorder
What is a nucleotide?
a molecule that makes up protein molecules
a molecule that consists of a sugar, a phosphate, and a base
a molecule that consists of adenine, thymine, guanine, and cytosine
a molecule that is made up of amino acids
Which of these terms best describes the structure of DNA?
tetrahedron
double helix
single strand
triple octagon
Which of these lists correctly identifies all four bases in DNA?
adenine, thymine, guanine, cytosine
adenine, uracil, guanine, cytosine
adenine, thymine, uracil, cytosine
uracil, thymine, guanine, cytosine
Which of these claims correctly describes a mutation?
It is a change in the nucleotide base sequence of a DNA molecule.
It is a molecule that is present in all living cells and plays a role in protein production.
It is a subunit of a nucleic acid chain that consists of a sugar, a phosphate, and a base.
It is a molecule that is present in all living things and stores the information that determines inherited traits.
A timeline of discoveries related to DNA is shown below. Which scientist should be placed at point 5 in this timeline?
Francis Crick
James Watson
Erwin Chargaff
Rosalind Franklin
Mitosis is the main mechanism of asexual reproduction. Cassie draws flashcards for each phase of mitosis and cytokinesis. Before she can label the backs of the flashcards, Cassie drops them onto the floor. The flashcards get mixed up as shown below. In what order should Cassie place the cards to show mitosis and cytokinesis from start to finish?
1 , 2, 3, 4, 5
2, 4, 5, 1, 3
3, 1, 5, 2, 4
4, 2, 1, 5, 3
Noriko discovers a new plant in a forest. She observes it for some time, and when it reproduces, she tests the offspring and finds that they are genetically identical to the parent. Which of these claims is true about Noriko’s find?
The plant reproduces sexually, and two parents are required.
The plant reproduces asexually, and two parents are required.
The plant reproduces sexually, and only one parent is required.
The plant reproduces asexually, and only one parent is required.
Dante wants to match the types of cells with how they are produced. Which choice correctly pairs a type of cell with how it is produced?
egg cell—meiosis in males
sperm cell—mitosis in males
body cell—mitosis in females
body cell—meiosis in females
During a lab experiment, Rahul looks at six unlabeled slides showing different stages of the cell cycle. The teacher asks Rahul to place the slides in order, starting with interphase. In what order should Rahul place the slides?
interphase; cytokinesis; prophase; anaphase; metaphase; telophase
interphase; anaphase; metaphase; phrophase; telophase; cytokinesis
interphase; telophase; anaphase; metaphase; propase; cytokenisis
interphase; prophase; metaphase; anaphase; telophase; cytokensis
Why do single-celled organisms divide?
to repair damaged cells
to transmit genetic material by reproduction
to reduce the number of chromosomes in the cell
to increase the number of chromosomes in the cell
Alla uses a microscope to look at slides of onion cells. The slides show the stages of the cell cycle. The slides are labeled and in the correct order, starting with interphase. In which slide would Alla first see chromosomes?
anaphase
cytokinesis
prophase
telophase
Amanda is making a poster to describe the two types of cell division. She draws an outline of a human body on the poster. Amanda wants to show diagrams of mitosis and meiosis zooming out from the different parts of the body where they take place. Which of these claims correctly shows a location for a type of cell division?
bone—meiosis
testes—mitosis
ovaries—meiosis
What is the result of one sex cell undergoing meiosis in humans?
two sex cells, each with 23 chromosomes
two sex cells, each with 46 chromosomes
four sex cells, each with 23 chromosomes
four sex cells, each with 46 chromosomes
Juan drew the figures below to represent two different kinds of cells from the same animal.
Which answer below correctly identifies the sex cell and its function?
left; growth and repair of injured tissues
left; to pass on chromosomes to offspring
right; growth and repair of injured tissues
right; to pass on chromosomes to offspring
Which pair shows the number of cells present both before and after meiosis II?
1 and 2
1 and 4
2 and 4
4 and 4
Why does cell division take place in single-celled organisms?
in order for the organisms to grow
to enable the organisms to heal injured tissues
to reproduce and pass on genetic information
to make specialized cells for different functions
What is the result of mitosis?
two new cells
two new nuclei
two new copies of DNA
two new pairs of chromosomes
The body cells of adult fruit flies each contain four pairs of chromosomes. How many chromosomes are there in the sex cells of each fly that result from meiosis?
2
4
8
16
Which claim correctly describes a type of cell division?
Mitosis involves one cell division that produces four cells
Meiosis involves one cell division that produces two cells.
Mitosis involves two cell divisions that produce two cells.
Meiosis involves two cell divisions that produce four.
Which of these choices is a reason why cell division takes place in both single-celled and multicellular organisms?
growth
regeneration
repair
reproduction
Interphase is the longest stage of what process?
mitosis
cell cycle
cytokinesis
reproduction
Many plants reproduce sexually through the joining of sex cells in a flower. The female sex cell is an egg. The male sex cell is part of the pollen. By what process is the sex cell in pollen produced?
fertilization
meiosis
mitosis
pollination
There are two main types of cells in the human body. Some cells are body cells. Other cells are sex cells. The sex cells are involved in transmitting genetic information from parents to offspring. Which of these statements describes a characteristic of a sex cell?
It makes up most tissues.
It contains only sex chromosomes.
It has twice the chromosomes of a body cell.
It contains half the chromosomes of a body cell.
Xander examines several microscope slides showing stages of the cell cycle in onion cells. On one slide, he notes that the cell does not appear to have chromosomes. Instead, the genetic material appears to be a tangled ball of string. What stage of the cell cycle is he observing?
cytokinesis
interphase
metaphase
prophase
These structures become tightly packed during cell division. They contain DNA.
Centromeres
Centrioles
Chromosomes
Spindle Fibers
The process where a pair of chromosomes pair up and exchange genetic material.
Crossing over
Gamete cells
Replication
Reproduction
In Meiosis II the cell division begins with how many daughter cells?
One
Two
Three
Four
Put the following in correct order
1, 2, 3, 4
2, 3, 1, 4
2, 1, 3, 4
4, 3, 2, 1
