Practice Questions

TLS Online TPP Program

#Question id: 7208

Following statements are given about cleavage in drosophila.
A. During the ninth division cycle, approximately five nuclei reach the surface of the anterior pole of the embryo. These nuclei become enclosed by cell membranes and generate the pole cells that give rise to the gametes of the adult.
B. During tenth division of cycle, the other nuclei migrate to the cortex (periphery) of the egg and at this stage, embryo is called a syncytial blastoderm .
C. When the nuclei reach the periphery of the egg during the tenth cleavage cycle, each nucleus becomes surrounded by microtubules and microfilaments. The nuclei and their associated cytoplasmic islands are called transmembrane.
D. Following division cycle 13, the cell membrane (which had covered the egg) folds inward between the nuclei, eventually partitioning off each energid into a single cell. This process creates the cellular blastoderm.
Which of the following combination are correct?

#Unit 5. Developmental Biology

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#Question id: 12989

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