BIO 351 Exam
BIO 351 - Final Exam 1 (80
Questions) With Correct
Answers New Update
1|P A G E
, BIO 351 Exam
1. You have made a transgene expressing a LacZ reporter
gene. Where will this transgene integrate into the genome?
- CORRECT ANSWER ✔ - A random chromosomal location
2. You are able to fluorescently label cells in the ectoderm of
a chick embryo and watch the embryo over the course of a
few days. You notice that the labeled cells now have
developed into cells shaped like... What best describes the
process you have observed? - CORRECT ANSWER ✔ -
differentiation
3. Which of the following properties of ES cells make them
useful for making knock out mutations? - CORRECT
ANSWER ✔ - they are pluripotent, will self-renew, and will
integrate vector DNA by homologous recombination
4. Which of the following is the correct order of
developmental steps leading to a specialized cell type? -
CORRECT ANSWER ✔ - specification, determination,
differentiation
1|P A G E
, BIO 351 Exam
5. The diagram below shows an example of juxtacrine
signaling. Cell-cell contact is mediated through the ____
ligand on the inducing cell and ___ receptor o the
responding cell in this pathway. - CORRECT ANSWER ✔ -
Delta, Notch
6. Which of the following techniques would be most
appropriate for directly studying the secretion of Wnt1
signaling and its distribution throughout the extracellular
space of the embryonic spinal cord? - CORRECT ANSWER
✔ - In situ hybridization OR immunohistochemistry
7. Which statement is true? - CORRECT ANSWER ✔ - Bindin
in necessary for sea urchin sperm to recognize eggs in a
species-specific manner.
8. Differential gene expression is a central theme in
development. which of the following statements most
accurately describes this concept? - CORRECT ANSWER ✔
1|P A G E
BIO 351 - Final Exam 1 (80
Questions) With Correct
Answers New Update
1|P A G E
, BIO 351 Exam
1. You have made a transgene expressing a LacZ reporter
gene. Where will this transgene integrate into the genome?
- CORRECT ANSWER ✔ - A random chromosomal location
2. You are able to fluorescently label cells in the ectoderm of
a chick embryo and watch the embryo over the course of a
few days. You notice that the labeled cells now have
developed into cells shaped like... What best describes the
process you have observed? - CORRECT ANSWER ✔ -
differentiation
3. Which of the following properties of ES cells make them
useful for making knock out mutations? - CORRECT
ANSWER ✔ - they are pluripotent, will self-renew, and will
integrate vector DNA by homologous recombination
4. Which of the following is the correct order of
developmental steps leading to a specialized cell type? -
CORRECT ANSWER ✔ - specification, determination,
differentiation
1|P A G E
, BIO 351 Exam
5. The diagram below shows an example of juxtacrine
signaling. Cell-cell contact is mediated through the ____
ligand on the inducing cell and ___ receptor o the
responding cell in this pathway. - CORRECT ANSWER ✔ -
Delta, Notch
6. Which of the following techniques would be most
appropriate for directly studying the secretion of Wnt1
signaling and its distribution throughout the extracellular
space of the embryonic spinal cord? - CORRECT ANSWER
✔ - In situ hybridization OR immunohistochemistry
7. Which statement is true? - CORRECT ANSWER ✔ - Bindin
in necessary for sea urchin sperm to recognize eggs in a
species-specific manner.
8. Differential gene expression is a central theme in
development. which of the following statements most
accurately describes this concept? - CORRECT ANSWER ✔
1|P A G E
