Answer:
The Lac repressor is preventing genes being expressed most of the time.
Explanation:
The Lac repressor protein, LacI, prevents the transcription of genes involved in lactose utilization.
The Ascomycota fungi contain the ascus, which are sac-like structures where meiosis takes place.
Answer:
Sexual reproduction is the joining of gametes to form a different organism while Asexual reproduction is the duplication of the first organism to form an identical organism.
Explanation:
Oncovirus is the virus that is studied
Explanation:
Oncovirus are the tumour causing viruses, which has been a dominant in causing leukaemia and also solid tumours in lower species. Oncovirus grows clumps of cells in the upper layer of the original cell. Transformation of cells as well as the tumour formation in experimental cells are induced by the oncoviruses. viruses remain unique form one another because of their nucleic acid, morphology, mode of replication, host range and type of antigens induced in the tumour or induced cell.
Answer:
True
Explanation:
Epinephrine and norepinephrine are the hormones secreted by the adrenal medulla and are also called adrenaline and noradrenaline, respectively. During stress conditions, the hypothalamus stimulates the preganglionic neurons of sympathetic division.
These preganglionic neurons stimulate the chromaffin cells to secrete epinephrine and norepinephrine to prepare the body for fight or flight response. The increased level of epinephrine and norepinephrine hormones in the blood is called “surge of adrenaline”
