1
CEA
CEA EXAM PREP (NEW 2025/2026 UPDATE)
QUESTIONS AND VERIFIED ANSWERS|100%
CORRECT |GRADE A
Problems associated with xenotransplantation include - ANS ✓-long term
survival of the transplanted organs
-objection by some people to the use of animals for this purpose
-the fear that viruses carried by the animals may cause an epidemic in humans
An advantage to the implants created by tissue engineers is that - ANS ✓-
they can easily be withdrawn
-the product easily diffuses out of the implant
-immune cells are too big to enter the implant and destroy the cells inside
Ordinary pig organs are often used for xenotransplants because the human
immune system does not respond to their presence. (TRUE/FALSE) - ANS
✓False
The use of transgenic animals to produce pharmaceuticals is referred to as
- ANS ✓Gene pharming
CEA Exam
, 2
CEA
The cloning of an adult vertebrate is impossible (TRUE/FALSE) - ANS ✓False
A single microarray may have a surface area of less than 3 square inches
yet may contain unique spots of tens of thousands of gene sequences.
(TRUE/FALSE) - ANS ✓True
A cluster analysis is the study of groups of genes that seem to be regulated
together. (TRUE/FALSE) - ANS ✓True
Functional protein microarrays can identify protein functions only if their
sequence is known. - ANS ✓False
Which of these might be an advantage to genetic testing of individuals via
microarrays? - ANS ✓-Microarray analysis can provide information on relative
levels of expression of particular genes
-Expression patterns of many different genes can be analyzed simultaneously
-Many different potential mutations in a single gene could be tested at once
Which of these would not be a valid reason that use of microarray
technology to differentiate between closely related bacterial species and
subspecies is important? - ANS ✓In many cases, critical information about
CEA Exam
, 3
CEA
characteristics of a bacterium causing an infection needs to be immediately
available
If a computer were not able to access the entire genomic sequence of an
organism, which of the following techniques might allow determination of
the gene sequence that encodes a particular protein? - ANS ✓Hybridization
of a genomic library with a degenerate probe
Which of these concerns would apply to functional protein microarrays but
not antibody microarrays? - ANS ✓Certain functions, such as structural
support of a cell, may not be amenable to analysis on a microarray
Which of the following pieces of information would not be required for a
computer program to determine exon/intron structure of a gene? - ANS
✓The nucleotide sequence of the mRNA
The two Cy-labeled cDNA samples are mixed and hybridized to a single
microarray that is then scanned in a microarray scanner to visualize
fluorescence of the two fluorophores after excitation with a ________ beam of
a defined wavelength. - ANS ✓Laser
CEA Exam
CEA
CEA EXAM PREP (NEW 2025/2026 UPDATE)
QUESTIONS AND VERIFIED ANSWERS|100%
CORRECT |GRADE A
Problems associated with xenotransplantation include - ANS ✓-long term
survival of the transplanted organs
-objection by some people to the use of animals for this purpose
-the fear that viruses carried by the animals may cause an epidemic in humans
An advantage to the implants created by tissue engineers is that - ANS ✓-
they can easily be withdrawn
-the product easily diffuses out of the implant
-immune cells are too big to enter the implant and destroy the cells inside
Ordinary pig organs are often used for xenotransplants because the human
immune system does not respond to their presence. (TRUE/FALSE) - ANS
✓False
The use of transgenic animals to produce pharmaceuticals is referred to as
- ANS ✓Gene pharming
CEA Exam
, 2
CEA
The cloning of an adult vertebrate is impossible (TRUE/FALSE) - ANS ✓False
A single microarray may have a surface area of less than 3 square inches
yet may contain unique spots of tens of thousands of gene sequences.
(TRUE/FALSE) - ANS ✓True
A cluster analysis is the study of groups of genes that seem to be regulated
together. (TRUE/FALSE) - ANS ✓True
Functional protein microarrays can identify protein functions only if their
sequence is known. - ANS ✓False
Which of these might be an advantage to genetic testing of individuals via
microarrays? - ANS ✓-Microarray analysis can provide information on relative
levels of expression of particular genes
-Expression patterns of many different genes can be analyzed simultaneously
-Many different potential mutations in a single gene could be tested at once
Which of these would not be a valid reason that use of microarray
technology to differentiate between closely related bacterial species and
subspecies is important? - ANS ✓In many cases, critical information about
CEA Exam
, 3
CEA
characteristics of a bacterium causing an infection needs to be immediately
available
If a computer were not able to access the entire genomic sequence of an
organism, which of the following techniques might allow determination of
the gene sequence that encodes a particular protein? - ANS ✓Hybridization
of a genomic library with a degenerate probe
Which of these concerns would apply to functional protein microarrays but
not antibody microarrays? - ANS ✓Certain functions, such as structural
support of a cell, may not be amenable to analysis on a microarray
Which of the following pieces of information would not be required for a
computer program to determine exon/intron structure of a gene? - ANS
✓The nucleotide sequence of the mRNA
The two Cy-labeled cDNA samples are mixed and hybridized to a single
microarray that is then scanned in a microarray scanner to visualize
fluorescence of the two fluorophores after excitation with a ________ beam of
a defined wavelength. - ANS ✓Laser
CEA Exam
