DPR Final Exam Review Questions and Answers with complete solution
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Module
DPR
Institution
DPR
What process prevents sense organ precursors from becoming neural cells?
A. Lateral repressor activity
B. Lateral inhibition
C. Gene transcription
D. Mutually assured destruction - ️️B. Lateral inhibition
One primary difference between gastrulation of the frog and chick is
A. The organize...
DPR Final Exam Review
What process prevents sense organ precursors from becoming neural cells?
A. Lateral repressor activity
B. Lateral inhibition
C. Gene transcription
D. Mutually assured destruction - ✔️✔️B. Lateral inhibition
One primary difference between gastrulation of the frog and chick is
A. The organizer remains stationary in frog but not the chick
B. The organizer is the site that regulates much of gastrulation
C. A neural plate does not form in the frog
D. The notochord is not present in the chick - ✔️✔️A. The organizer remains stationary
in the frog but not in the chick
What makes c. Elegans unique as a model organism?
A. Short gestation time
B. Inexpensive
C. Transparent
D. Completely fate-mapped - ✔️✔️D. Completely fate-mapped
A forward genetic screen requires:
A. Targeted mutations
B. Dominant mutations
C. Exposure to a mutagen
D. All of the above - ✔️✔️C. Exposure to a mutagen
An example of a reverse genetic screen is
A. Transgenic knock-out of a gene
B. Ectopic expression of a gene
C. RNAi mediated interference with a gene
D. All of the above
E. None of the above - ✔️✔️D. All of the above
What must be true about a mutation for it to have utility in a genetic screen?
A. It must be present in the somatic cells
B. It must be present in the gametes
C. It cannot be present in the somatic cells
D. It cannot be present in the gametes - ✔️✔️B. It must be present in the gametes
Gastrulation results in
A. An adult organism
B. A hollow tube
C. Four germ layers
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