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DNA/Mitosis Test Review
Test Description: Questions about DNA structure and cell division
Instructions: Answer all questions to get your test result.
1) Which of the following best describes the appearance of a cell during prophase?
A
the nuclear envelope is dissolved and the spindle fibers have attached themselves to chromosomes down the middle of the cell
B
the spindle fibers are pulling the duplicated chromosomes to opposite sides of the cell
C
DNA is in condensed chromosome form and nuclear membrane is beginning to break down
D
the cell divides into two new cells each with one copy of all the chromosomes and the nuclear membrane reforms
2) Which of the following best describes the appearance of a cell during metaphase?
A
the cell divides into two new cells each with one copy of all the chromosomes and the nuclear membrane reforms
B
the nuclear envelope is dissolved and the spindle fibers have attached themselves to chromosomes down the middle of the cell
C
the spindle fibers are pulling the duplicated chromosomes to opposite sides of the cell
D
DNA is in condensed chromosome form and nuclear membrane is beginning to break down
3) Which of the following best describes the appearance of a cell during anaphase?
A
the spindle fibers are pulling the duplicated chromosomes to opposite sides of the cell
B
the nuclear envelope is dissolved and the spindle fibers have attached themselves to chromosomes down the middle of the cell
C
DNA is in condensed chromosome form and nuclear membrane is beginning to break down
D
the cell divides into two new cells each with one copy of all the chromosomes and the nuclear membrane reforms
4) Which of the following best describes the appearance of a cell during telophase?
A
the cell divides into two new cells each with one copy of all the chromosomes and the nuclear membrane reforms
B
the spindle fibers are pulling the duplicated chromosomes to opposite sides of the cell
C
the nuclear envelope is dissolved and the spindle fibers have attached themselves to chromosomes down the middle of the cell
D
DNA is in condensed chromosome form and nuclear membrane is beginning to break down
5) Which of the following phases takes up the most time during the cell cycle?
A
mitosis
B
interphase
C
anaphase
D
prophase
6) Which of the following statements is correct about the process of mitosis?
A
The cell divides twice to make two different cells
B
the cell continues to grow in size to get ready for DNA replication
C
A cell is divided into to new cells that match the parent cell to replace damaged or dying cells
D
Four cells are created that each have half the amount of DNA as the parent cell
7) In a nucleotide...
A
a sugar, phosphate, and nitrogen base all line up in one straight line
B
the nitrogen base is attached to the sugar
C
the nitrogen base is attached to the phosphate
D
phosphates and nitrogen bases combine to form the backbone
8) Which of the following terms is used to describe the condensed form of DNA?
A
chromatogen
B
chromosome
C
DNA double helix
D
chromatin
9) Why would DNA replication be affected if nitrogen bases were attached by covalent bonds?
A
the stronger bonds would hold the two strands togther making it much more difficult to expose the nitrogen bases
B
replication would be easier because covalent bonds are weaker than hydrogen bonds
C
the nitrogen bases are attached by covalent bonds, so there would be no difference
D
replication could go twice as fast due to the increased strength of the molecule
10) Why is the S phase of the cell cycle super important?
A
It copies the DNA so after mitosis both daughter cells still have all the copies of the chromosomes
B
the cell can divide into two new cells
C
the cell can grow bigger
D
the S phase is not part of the cell cycle
*select an answer for all questions
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