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?

#Question id: 4365

#Unit 3. Fundamental Processes

Which of the following methods is utilized by eukaryotes to control their gene expression that is different from the type of control found in bacteria?

#Question id: 2453

#Unit 2. Cellular Organization

Keratins

a. are found in the nucleus.                            

b. are typically expressed in neuronal cells.

c. contain an acidic and a basic subunit.                    

d. function in cell adhesion.

e. are the major proteins of hair and horns.

#Question id: 14514

#Unit 13. Methods in Biology

#Question id: 307

#Unit 1. Molecules and their Interaction Relevant to Biology

An ionic compound A+ B– is most likely to be formed when________

#Question id: 27945

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statements is true regarding the payoff phase of glycolysis

a. Each molecule of glyceraldehyde 3-phosphate is oxidized and phosphorylated by ATP to form 1,3-bisphosphoglycerate 

b. Each molecule of glyceraldehyde 3-phosphate is oxidized and phosphorylated by inorganic phosphate to form 1,3-bisphosphoglycerate

c. Oxidative phosphorylation of 3-Phosphoglycerate produces one NADH

d. Oxidative phosphorylation of glyceraldehyde 3-phosphate, produces one NADH