How is neural crest different from endoderm, mesoderm and ectoderm?
What will be an ideal response?
ANSWER: Neural crest cells arise next to the developing nervous system and later migrate throughout
a vertebrate’s body. Ectoderm gives rise to the nervous system. Endoderm, mesoderm and
ectoderm are not unique to vertebrates; neural crest cells give rise to unique vertebrate
structures including parts of cranium, teeth, sensory organs, cranial nerves, teeth, and
sensory organs.
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Photoreactivation repairs thymine dimers by splitting them back into separate thymines.
Answer the following statement true (T) or false (F)
What key words does the question contain and what do they mean?
What will be an ideal response?
Morphine mimics natural pain killers called _____
Fill in the blank(s) with correct word
The reserve food in angiosperm seeds is stored in a special tissue called:
A) nectar. B) the sporophyte. C) the seed coat. D) endosperm.