Question

1. Is the emphasis in early development on growth or differentiation?

2. Why is your answer to the above question a more important initial emphasis?

3. What do the cells of the vegetal pole produce?

4. What do the cells of the animal pole produce?

5. What is the function of albumin?

Answer 1

1) In early development the emphasis is on differentiation.

2) Differentiation is more important in initial emphasis because differentiation of cells during early development is the key to cell, tissue, organ, and organism identity. Growth is the factor which is established only after differentiation.

3) The vegetal cell produces archenteron, which further gives rise to the lumen of the alimentary canal.

4) The the animal pole produces three germ layers and participate in the process of gastrulation. It also differentiate into later embryo.

5) Albumin is body's serum-binding protein, which aids the transport of substances like bilirubin, fatty acids, metals, ions, hormones. Albumin also helps in maintaining the oncotic pressure, and acid base balance of the body.

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