Answer:
Option A. inducer.
Explanation:
The lac operon is an inducible operon. The presence of lactose allows the gene expression for the metabolism of lactose. The IPTG mimics the structure of allolactose. The allolactose is the direct inducer of the gene of lac operon. Lactose by converting to allolactose act as a inducer. The repressor in the lac operon binds with the operator region and thus inhibits the process of transcription.
The allolactose binds with repressor and thus inhibits its binding to operator thereby initiating the process of transcription. As the IPTG mimics allolactose so it binds with repressor and act as a inducer. Thus, option A is correct.
Answer:
(A) Natural killer- virus-infected cell.
(C) Neutrophil - bacteria in skin lesion.
(B) Eosinophil - tapeworm in the intestines.
Explanation:
<u>Natural killer cells</u> are a type of the cytotoxic lymphocyte that are critical to the innate immune system. NK cells are the cells which provide rapid responses to the <u>virus-infected cells</u>.
<u>Neutrophils</u> are type of the phagocyte which are found in bloodstream. During beginning of the acute phase of inflammation particularly which are a result of the <u>bacterial infection</u>, neutrophils are the first-responders of the inflammatory cells to migrate towards inflammation's site.
<u>Eosinophils</u> are variety of the white blood cells which are responsible for combating <u>parasites</u> and also certain infections. Thus it will mostly target <u>tapeworm in the intestine</u>.
Answer:
Malignant
Explanation:
Malignant is the opposite of benign. Benign tumors aren't life-threatening, while malignant tumors are.
Answer:
Hmmm Hard One I Think Its 13.33 AU
Explanation:
Because One Is 92,955,807 So Uhh Yeah.
Answer:
Eukaryotic plant cell
Explanation:
Eukaryotic cells have a defined nucleus, unlike prokaryotic cells. Plant cells also have chloroplasts, unlike animal cells and prokaryotic cells, because prokaryotic cells do not contain any membrane-bound organelles (e.g. nucleus, chloroplasts, mitochondria etc.)
