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41. |
Which of the following structures in our eye are not derived from ectoderm: |
A. |
Lens, retina, cornea, and conjunctiva |
B. |
Selerotic, choroids layer and pupil |
C. |
Iris, ciliary body and eye muscles |
D. |
Both of the structures in list (b) and (c) |
Answer: Option A
Explanation:
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42. |
Heart and kidney in the frog are derived from mesoderm whereas the lungs are derived from: |
A. |
Ectoderm |
B. |
Endoderm |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option B
Explanation:
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43. |
Which of the following parts of excretory system are endodermal in origin: |
A. |
Kidneys |
B. |
Urinary bladder |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option B
Explanation:
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44. |
Which of the following parts in adrenal gland are mesodermal in origin: |
A. |
Medulla |
B. |
Cortex |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option B
Explanation:
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45. |
Which of the following structures in frog is ectodermal in origin: |
A. |
Epidermis |
B. |
Skin glands |
C. |
Dermis |
D. |
All of these |
Answer: Option C
Explanation:
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46. |
Enamel found in our tooth is ectodermal in origin whereas dentine is: |
A. |
Totally ectodermal |
B. |
Totally mesodermal |
C. |
Partially endodermal |
D. |
Partially mesodermal |
Answer: Option B
Explanation:
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47. |
Which of these endocrine glands is endodermal in origin: |
A. |
Pituitary gland |
B. |
Adrenal gland |
C. |
Thyroid gland |
D. |
Pineal body |
Answer: Option C
Explanation:
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48. |
Total connective tissue present in our body is derived from: |
A. |
Ectoderm of the embryo |
B. |
Endoderm of the embryo |
C. |
Mesoderm of the embryo |
D. |
Ectoderm, endoderm and mesoderm |
Answer: Option C
Explanation:
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49. |
Liver and pancreas are endodermal in origin whereas spleen is: |
A. |
Ectodermal |
B. |
Mesodermal |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option B
Explanation:
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50. |
Internal ear is derived from ectoderm of the embryo but middle ear and Eustachian tube are derived from: |
A. |
Endoderm of the embryo |
B. |
Mesoderm of the embryo |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option A
Explanation:
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