<em>I think the answer is C, Hence I would pick the answer to be B because it sounds to be more information into the answer then A/B. Hope this helps, let me know if I am right. </em>
The correct answer would be d.
The correct answer is A. Lac repressor.
Lac repressor prevents lac gene which are found in the DNA of Escherichia Coli from being expressed for many times.
Lac repressor is termed as DNA which binds proteins. It allows the expression of genes from coding which are made for proteins to be involved in metabolism of lactose which is in bacteria.
When there is no lactose which is available in the cell, then the genes are being repressed. Lactose are being converted to allolactose if they are available.
Answer: unbalanced force
Explanation: unbalanced forces makes it move
1. A unicellular organism with no nucleus is a <span>Prokaryotes. </span>
2. The type of infection in which a virus does not immediately start replicating itself, but inserts a piece of DNA into the host cell’s genome which becomes activated at a later date is called a Lysogenic infection
3. A spiral or corkscrew-shaped prokaryote is called Spirillum
4. The thick internal wall that can enclose a prokaryote’s DNA and some cytoplasm when conditions are unfavorable is called a <span>Endospore</span>