Answer:
e. bacteria producing vitamin K
Explanation:
Microbial antagonism basically refers as microbes versus microbes i-e the indigenous microflora serve a beneficial role by preventing other microbes from becoming established in or colonizing a particular anatomic location in the body.
As all the options mentioned, refers to the microbial antagonism except option E as the normal microbes protect the host by :
1) Producing acids.
2) Bactreocin production
3) By occupying the niches that the pathogens may occupy.
But the microbes cant compete with other microbes by producing vitamins and growth factors that can be utilized by the host.
Hence option E is the right answer.
Answer: A. protein like tubules
B. Microtubules
C. Microfilaments
Explanation:
Cytokinesis in the bacteria is facilitated by the presence of these conserved tubulin-like proteins. Due to the fact that their walls are flexible, constriction of these walls is possible aiding in cytokinesis. Unlike in plant that have rigid cell wall, a cell plate is involved in the formation of a new cell wall between the daughter cells. Network of microtubules determines the position of the cell plate which is mostly like a disc in the middle of the two daughter cells. Cleavage furrow occurs in animal cells which is caused by the action of the contractile ring: a ring of actin microfilament.
The answer to your Q it is doubled rods of condensed chromatin
