The domain of the new species of unicellular microorganism in an undersea thermal vent that lacks a nucleus is Archeae.
<h3>What is domain?</h3>
Domain in biology refers to the highest rank in the classification of organisms, above kingdom.
The three domain of organisms are as follows:
- Prokarya or Bacteria
- Archaea
- Eukarya
Members of Prokarya and Archaea do not possess a membrane-bound nucleus, however, the major difference between them is that members of domain Archaea are found in extreme habitats e.g. hot regions.
Therefore, the domain of the new species of unicellular microorganism in an undersea thermal vent that lacks a nucleus is Archeae.
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Remember that CO2, light and heat (to activate the reaction and keep the enzymes happy) are all needed for a reaction. When one goes missing, it destroys the whole process.
1. No light = no reaction can be made. That means the plant wouldn't intake any CO2 anyway.
2. When very hot the enzymes will denature (plant dead) or when cold, the activation energy will not be there. So once again, it will not respond to light as it is not its primary concern.
Site-specific recombination systems all of the choices are correct i.e.
A. do not depend on extensive nucleotide sequence homology.
B. depend on enzymes that are often specific for sequences within the host.
C. are features of some viruses.
- An exchange between two specified sequences (target sites), either on the same DNA molecule or on two separate DNA molecules, is known as site-specific recombination.
- DNA sequences may be integrated, excised, or inverted as a result of the exchange.
- A site-specific recombinase that can work by itself or with the aid of additional components or enzymes shapes the DNA target during recombination.
- The recombinase is chemically bonded to the ends of the intermediate DNA after DNA breakage at the recombination site; when this process is reversed, the intermediate DNA is resealed to form the recombinant and the recombinase is released.
- During this recombination process, neither replication nor repair are necessary.
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In an animal cell, Mitochondria alone provides energy required to carry out all life essential cellular activities like synthesis of substance, disposal, Synthesis of protein,etc, by converting food into energy rich molecules called ATP.
Whereas in case of a plant cell, Chloroplast along with Mitochondria generates energy for the cell. Chloroplast in the plant cell uses sunlight to synthesis energy through the process of light and dark reaction simultaneously.
