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11-12
Test Description: Chapters eleven and twelve genetics and diseases
Instructions: Answer all questions to get your test result.
1) The lac operon is shut off when
A
glucose is present
B
lactose is absent
C
lactose is present
D
glucose is absent
2) A substance that causes cancer is known as
A
mutation
B
carcinogen
C
tumor
D
metastasis
3) Mestatasis is characterized by
A
conversion of a malignant tumor to a benign tumor
B
the growth of a benign tumor
C
localization of a tumor to a particular location
D
spread of a malignant tumor
4) Cells grow and divide at an abnormally high rate in
A
mitosis
B
cytokinesis
C
diabetes
D
cancer
5) An oncogene
A
prevents a cell from reproducing
B
may cause a cell to become a cancer cell
C
induces numerous mutations of the chromosomes on which it is found
D
metastasizes to other chromosomes
6) The X and Y chromosomes are called the
A
sex chromosomes
B
extra chromosomes
C
phenotypes
D
all of the above
7) In a mating between two parental types, one of which is homozygous dominant for two linked traits and one of which is homozygous recesssive fro the same two linked traits, evidene
A
parents
B
All of the above
C
F2
D
F1
8) Which of the following is NOT true of chromosome maps?
A
they are practical with species having only a few chromosomes
B
they depict absolute differences between genes on a chromosome
C
they depict the linear sequence of genes on a chromosome
D
they are constructed using crossingover data from mating experiments
9) A mutation cause by a piece of DNA breaking away from its chromosome and becoming attached to a nonhomologous chromosome is called
A
suplication
B
translocation
C
inversion
D
deletion
10) A change in a gene due to damage or being copied incorrectly is called
A
segregation
B
meiosis
C
a mutation
D
inversion
*select an answer for all questions
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