a cyanelle is a BGA associated with human intestine a BGA associated with protists a free living BGA any symboitic BGA

a cyanelle is
  1. a BGA associated with human intestine
  2. a BGA associated with protists
  3. a free living BGA
  4. any symboitic BGA

Grade:12th pass

2 Answers

Apoorva Arora IIT Roorkee
askIITians Faculty 181 Points
9 years ago
The correct option is 3.
Protein encoded by the cyanelle genome or protein located in the cyanelle. Cyanelles are the plastids of glaucocystophyte algae. They are surrounded by a double membrane and, in between, a peptidoglycan wall. The cyanelle genome is of chloroplast size and contains genes for tRNAs, rRNAs and approx. 150 proteins, which is more than found in higher plant chloroplast genomes (this feature is also shared by other primitive plastids). Thylakoid membrane architecture and the presence of carboxysomes are cyanobacteria-like. Historically, the term cyanelle is derived from a classification as endosymbiotic cyanobacteria, and thus is not fully correct.
Arya Anil K
14 Points
2 years ago
Correct option is 2.
Cynelle is a BGA associated with protists.
Organelles that allow glaucocystophytes (q.v.) to perform photosynthesis. Cyanelles occupy an intermediate level of symbiotic integration between free-living cyanobacteria (q.v.) and chloroplasts (q.v.). Both cyanobacteria and cyanelles contain chlorophyll a. The genomes of cyanelles are about one-tenth the size of free-living cyanobacteria, but they are similar in size to the genomes of the chloroplasts of plants. The DNA genome in each cyanelle is present in about 60 copies. Unlike the situation in plants, where the large subunit of RuBisCO is encoded by chloroplast genes and the small subunit by nuclear genes, both subunits are encoded by the cyanelle genomes. See ribulose-1, 5-bisphosphate carboxylase-oxygenase (RuBisCO), serial symbiosis theory.

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