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Biological Science - Cancer Questions with Accurate Answers
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Biological Science - Cancer
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Biological Science - CancerStarts with changes at the genetic level of individual cells, which may cause some cells
to lose control and divide rapidly and uncontrollably - answer Cancer
Cancer cells - answer disregard their genetic programming; lose their specialization;
divide uncontrollably
Cancer is a disease that occurs at what level of biological organization of things? -
answer Cellular
What distinguishes cancer cells from normal cells? - answer Cancer cells continue to
divide even when they come into contact with other cells and are not regulated because
they have lost the ability to control cell division.
Billions of new ____________ are produced every day to repair damaged tissues or
replace worn out cells. - answerCells
The production of cells is closely regulated by a variety of ______________ and genetic
mechanisms within the cell to ensure that only the correct type and number of cells are
produced. - answerhormones
_______ cell division is a hallmark of cancer. - answerUnregulated
The generalized ______ of control over cell reproduction exhibited by cancer cells is the
result of accumulated abnormalities and is reflected in several aspects of cell behavior
that distinguish cancer cells from their normal cells. - answerloss
Although there are many different forms of cancer, it is presumed that cancer is a
disease caused by the combined effects of both genetic and ________________. -
answerenvironmental factors
Type of cancer found in the neck generally - answerThyroid
Type of cancer found in the lung area - answerLymphoma
Type of cancer typically found in bones - answerLeukemia
Type of cancer found in men reproductive areas - answerTesticular
Type of cancer found on the skin - answerMelanoma
, Which term describes an overgrowth of abnormal cells that serves no useful purpose? -
answerTumor
At the end of mitosis, the daughter cells are described as clones. For this description to
be appropriate, the daughter cells must _____________ - answercontain a set of
genetic instructions that are identical to each other and that of the parent cell
The sister chromatids separate and become individual chromosomes that begin to
move toward the poles of the cell. - answerAnaphase
The mitotic spindle aligns the replicated chromosomes at the center of the cell. -
answerMetaphase
Replicated chromosomes condense and attach to the mitotic spindle. - answerProphase
The entire cell physically divides into two daughter cells. - answercytokinesis
As new chromosomes reach the poles, the nuclear envelopes re-form, and the
chromatin decondenses. - answertelophase
In order for cancer to develop, which of the following events must occur? -
answerGenetic mutation causes a cell to lose its normal genetic programming and
control mechanisms and unregulated cell division occurs.
Which of the following is most likely to occur when a tumor-suppressor gene is
mutated? - answerThe tumor-suppressor gene and resulting protein may lose their
function and the ability to slow down the rate of the cell cycle.
Which of these could be describing the function of chromosomes? - answerthe filing
cabinet of the cell, because they organize the genes of the DNA
As a cell divides, combinations of genetic instructions are turned on and off based on
signals from nearby cells and the environment. As a result, cells become - answermore
specialized
A DNA molecule stores genetic information..... - answerin the structure of the molecule,
particularly the order of the nitrogen bases.
Alleles are ... - answervariations in genes
A nucleic acid is best defined as a molecule that..... - answerstores genetic information
What is a gene? - answera sequence of genetic information that contains instructions
used to make a protein
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