Verified Test Bank Drosophila Life Cycle And Development Ch2 - Principles of Development 6e | Instructor Test Bank by Lewis Wolpert. DOCX document preview.
Type: MC question
Title: Chapter 02 - Question 01
01) What is the result of the first 12 nuclear divisions of a Drosophila embryo where roughly 6,000 nuclei share a single cytoplasm?
a. Micropyle
Page reference: 38
b. Cellular blastoderm
Page reference: 39
c. Syncytium
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d. Pole cell
Page reference: 40
Type: MC question
Title: Chapter 02 - Question 02
02) Which of the options given is not true of the Drosophila mesoderm?
a. It gives rise to muscle and connective tissue.
Page reference: 40
b. Gastrulation internalizes the mesoderm.
Page reference: 40
c. The mesoderm is a primary germ layer.
Page reference: 40
d. The dorsal surface of the blastoderm gives rise to mesoderm.
Page reference: 40
Type: MC question
Title: Chapter 02 - Question 03
03) Which term is not associated with a Drosophila larva?
a. Instar
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b. Metamorphosis
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c. Denticles
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d. Imaginal discs
Page reference: 41
Type: MC question
Title: Chapter 02 - Question 04
04) What is the maternal anterior morphogen that controls head and thorax development?
a. Bicoid
Page reference: 47
b. Nanos
Page reference: 47
c. Caudal
Page reference: 50
d. Torso
Page reference: 51
Type: MC question
Title: Chapter 02 - Question 05
05) Which of the options given is not true of the Drosophila Dorsal protein?
a. Control regions of target genes differ in their affinity for the Dorsal protein.
Page reference: 62
b. The dorsal region of the Drosophila embryo expresses genes that are repressed by the Dorsal protein.
Page reference: 62
c. The gradient of Dorsal protein divides the Drosophila embryo up into at least four well-defined domains.
Page reference: 62
d. Dorsal protein levels are higher within the dorsal region of the Drosophila embryo.
Page reference: 62
Type: MC question
Title: Chapter 02 - Question 06
06) What class of patterning genes are expressed within seven transverse stripes in the Drosophila embryo?
a. Pair-rule genes
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b. Segmentation genes
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c. Gap genes
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d. Hox genes
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Type: MC question
Title: Chapter 02 - Question 07
07) What class of patterning genes encodes members of intercellular signaling pathways?
a. Pair-rule genes
Page reference: 72
b. Segmentation genes
Page reference: 78
c. Gap genes
Page reference: 66
d. Hox genes
Page reference: 85
Type: MC question
Title: Chapter 02 - Question 08
08) Which of these segmentation genes is a transcription factor that defines parasegment boundaries?
a. Frizzled
Page reference: 78
b. Hedgehog
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c. Patched
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d. Engrailed
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Type: MC question
Title: Chapter 02 - Question 09
09) What is the term that describes the relation between the order of the Hox genes along the chromosome and the order of their expression along the antero-posterior axis?
a. Homeosis
Page reference: 85
b. Posterior dominance
Page reference: 87
c. Gene cluster
Page reference: 91
d. Co-linearity
Page reference: 93
Type: MC question
Title: Chapter 02 - Question 10
10) What type of gene, such as a Hox gene, is sufficient to cause cells to adopt a particular fate?
a. Selector
Page reference: 77
b. Repressor
Page reference: 62
c. Activator
Page reference: 62
d. Recessive
Page reference: 43
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Principles of Development 6e | Instructor Test Bank
By Lewis Wolpert