BIO 351 Module 1 Exam with |! |! |! |! |! |!
precise detailed solutions |! |!
How many enhancer sites are indicated in the regulatory region of the Duffy
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gene? - Correct answer ✔3
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What is the cell specific of the GA(T>C)A mutation? - Correct answer ✔Red
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Blood Cells |!
What is the expected outcome in these cells due to the GA(T>C)A mutation?
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- Correct answer ✔Duffy protein will have a mutation in parasite binding
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domain
What is a likely explanation of how this GA(T>C)A mutation influences
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Duffy protein expression, if at all? - Correct answer ✔Transcription factors
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are unable to bind to the enhancer site, leading to no expression of Duffy
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protein
Which of the following terms describes the step at which cells become
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irreversibly committed to a particular cell fate? - Correct answer
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✔Determination
Which of the following is the correct order of developmental steps leading to
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a specialized cell type? - Correct answer ✔Specification, determination,
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differentiation
, As cells move along the continuum from stem cell to differentiated cell which
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of the following correctly identifies the properties of a determined cell? -
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Correct answer ✔Fate is irreversible.
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The diagram shows a nematode embryo at the four cell stage. The EMS cell
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normally divides and gives rise to cells that will form the mesoderm and
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endoderm. Killing the P2 cells leads to the disruption of EMS cell
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differentiation, which of the following best describes the process taking |! |! |! |! |! |! |! |! |! |!
place? - Correct answer ✔conditional specification of the EMS cell
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Which of the following are TRUE properties of embryonic stem ( ES) cells? -
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Correct answer ✔They are pluripotent, and will self-renew indefinitely.
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Which of the following best defines asymmetric cell division? - Correct
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answer ✔Mitosis producing unequal daughter cells that ensures stem cell
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self-renewal.
Pick the answer that BEST describes the potential of embryonic stem cells
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(ES cells). - Correct answer ✔pluripotential
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Fill in the blanks with the best answers.
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The _________________________ produce embryonic stem cells by
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___________________________ . - Correct answer ✔trophectoderm cells; |! |! |! |! |! |! |!
asymmetric division IS NOT THE RIGHT ANSWER. |! |! |! |! |! |!
precise detailed solutions |! |!
How many enhancer sites are indicated in the regulatory region of the Duffy
|! |! |! |! |! |! |! |! |! |! |! |! |!
gene? - Correct answer ✔3
|! |! |! |!
What is the cell specific of the GA(T>C)A mutation? - Correct answer ✔Red
|! |! |! |! |! |! |! |! |! |! |! |! |!
Blood Cells |!
What is the expected outcome in these cells due to the GA(T>C)A mutation?
|! |! |! |! |! |! |! |! |! |! |! |! |!
- Correct answer ✔Duffy protein will have a mutation in parasite binding
|! |! |! |! |! |! |! |! |! |! |! |!
domain
What is a likely explanation of how this GA(T>C)A mutation influences
|! |! |! |! |! |! |! |! |! |! |!
Duffy protein expression, if at all? - Correct answer ✔Transcription factors
|! |! |! |! |! |! |! |! |! |! |!
are unable to bind to the enhancer site, leading to no expression of Duffy
|! |! |! |! |! |! |! |! |! |! |! |! |! |!
protein
Which of the following terms describes the step at which cells become
|! |! |! |! |! |! |! |! |! |! |! |!
irreversibly committed to a particular cell fate? - Correct answer
|! |! |! |! |! |! |! |! |! |!
✔Determination
Which of the following is the correct order of developmental steps leading to
|! |! |! |! |! |! |! |! |! |! |! |! |!
a specialized cell type? - Correct answer ✔Specification, determination,
|! |! |! |! |! |! |! |! |!
differentiation
, As cells move along the continuum from stem cell to differentiated cell which
|! |! |! |! |! |! |! |! |! |! |! |!
of the following correctly identifies the properties of a determined cell? -
|! |! |! |! |! |! |! |! |! |! |! |! |!
Correct answer ✔Fate is irreversible.
|! |! |! |!
The diagram shows a nematode embryo at the four cell stage. The EMS cell
|! |! |! |! |! |! |! |! |! |! |! |! |! |!
normally divides and gives rise to cells that will form the mesoderm and
|! |! |! |! |! |! |! |! |! |! |! |! |!
endoderm. Killing the P2 cells leads to the disruption of EMS cell
|! |! |! |! |! |! |! |! |! |! |! |!
differentiation, which of the following best describes the process taking |! |! |! |! |! |! |! |! |! |!
place? - Correct answer ✔conditional specification of the EMS cell
|! |! |! |! |! |! |! |! |!
Which of the following are TRUE properties of embryonic stem ( ES) cells? -
|! |! |! |! |! |! |! |! |! |! |! |! |! |!
Correct answer ✔They are pluripotent, and will self-renew indefinitely.
|! |! |! |! |! |! |! |!
Which of the following best defines asymmetric cell division? - Correct
|! |! |! |! |! |! |! |! |! |! |!
answer ✔Mitosis producing unequal daughter cells that ensures stem cell
|! |! |! |! |! |! |! |! |! |!
self-renewal.
Pick the answer that BEST describes the potential of embryonic stem cells
|! |! |! |! |! |! |! |! |! |! |! |!
(ES cells). - Correct answer ✔pluripotential
|! |! |! |! |!
Fill in the blanks with the best answers.
|! |! |! |! |! |! |!
The _________________________ produce embryonic stem cells by
|! |! |! |! |! |! |!
___________________________ . - Correct answer ✔trophectoderm cells; |! |! |! |! |! |! |!
asymmetric division IS NOT THE RIGHT ANSWER. |! |! |! |! |! |!
