TLS Online TPP Program

#Question id: 2571


While examining a rock surface, you have discovered an interesting new organism. Which of the following criteria will allow you to classify the organism as belonging to Bacteria but not Archaea or Eukarya?

#Unit 2. Cellular Organization
  1. Cell walls are made primarily of peptidoglycan.

  2. The organism does not have a nucleus.

  3. The lipids in its plasma membrane consist of glycerol bonded to straight-chain fatty acids.

  4. It can survive at a temperature over 100°C.

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TLS Online TPP Program

#Question id: 24653

#Unit 2. Cellular Organization

Which of the following membrane protein form channel, in the form of gap junctions between cells?

TLS Online TPP Program

#Question id: 28168

#Unit 5. Developmental Biology

The cell has the capacity to differentiate into particular kinds of cells and achieve specific cell fates, this process is known as____

TLS Online TPP Program

#Question id: 33898

#Unit 2. Cellular Organization

E. coli cell has 4,639,675 bp have a contour length of about 1.7 mm and E. coli cell is 1µm is length. What can be correctly inferred from this data.

TLS Online TPP Program

#Question id: 7208

#Unit 5. Developmental Biology

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?

TLS Online TPP Program

#Question id: 24604

#Unit 2. Cellular Organization

Interrupted genes are equal to