Questions And Well-Detailed Answers
, How many enhancer sites are indicated in the regulatory region of the Duffy gene? -
VERIFIED ANSWERS -3
What is the cell specific of the GA(T>C)A mutation? - VERIFIED ANSWERS -Red
Blood Cells
What is the expected outcome in these cells due to the GA(T>C)A mutation? -
VERIFIED ANSWERS -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? - VERIFIED ANSWERS -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? - VERIFIED ANSWERS -Determination
Which of the following is the correct order of developmental steps leading to a
specialized cell type? - VERIFIED ANSWERS -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? - VERIFIED
ANSWERS -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? - VERIFIED ANSWERS -conditional specification
of the EMS cell
Which of the following are TRUE properties of embryonic stem ( ES) cells? - VERIFIED
ANSWERS -They are pluripotent, and will self-renew indefinitely.
Which of the following best defines asymmetric cell division? - VERIFIED ANSWERS -
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). -
VERIFIED ANSWERS -pluripotential
Fill in the blanks with the best answers.
The _________________________ produce embryonic stem cells by
___________________________ . - VERIFIED ANSWERS -trophectoderm cells;
asymmetric division IS NOT THE RIGHT ANSWER.
Within the early embryo, the primary heart field develops in response to high levels of
bone morphogenic proteins (BMPs) and fibroblast growth factor 8 (FGF8) at the rostral