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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 absent
B
lactose is absent
C
glucose is present
D
lactose is present
2) A substance that causes cancer is known as
A
tumor
B
metastasis
C
carcinogen
D
mutation
3) Mestatasis is characterized by
A
localization of a tumor to a particular location
B
conversion of a malignant tumor to a benign tumor
C
the growth of a benign tumor
D
spread of a malignant tumor
4) Cells grow and divide at an abnormally high rate in
A
cytokinesis
B
diabetes
C
cancer
D
mitosis
5) An oncogene
A
metastasizes to other chromosomes
B
induces numerous mutations of the chromosomes on which it is found
C
may cause a cell to become a cancer cell
D
prevents a cell from reproducing
6) The X and Y chromosomes are called the
A
phenotypes
B
all of the above
C
sex chromosomes
D
extra chromosomes
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
F2
B
All of the above
C
parents
D
F1
8) Which of the following is NOT true of chromosome maps?
A
they depict absolute differences between genes on a chromosome
B
they are practical with species having only a few chromosomes
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
deletion
C
inversion
D
translocation
10) A change in a gene due to damage or being copied incorrectly is called
A
segregation
B
meiosis
C
inversion
D
a mutation
*select an answer for all questions
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