Answer:
Yes
Explanation:
water is a liquid we drink and it is wet.
The question is incomplete as it does not have the options which are:
By binding to a plasma membrane receptor it initiates a cascade.
It relays a signal from the cytoplasm to the plasma membrane.
It activates relay proteins.
By binding to DNA it triggers the transcription of a specific gene.
It is a plasma membrane protein that binds signal molecules.
Answer:
By binding to DNA it triggers the transcription of a specific gene
Explanation:
The transcription factors are the protein molecules that bind with a specific sequence of the DNA. These transcription factors after binding to DNA initiates the process of transcription thus act in gene expression.
The transcription factors are involved in the long transduction pathway which has to act on the DNA sequence and produce the enzymes like involved in the synthesis of steroid hormones in the body.
Thus, the selected option is correct.
Answer:
b. the foreign DNA is integrated into one of the cell's chromosomes
Explanation:
Transformation involves following steps:
- The plasmid is removed from the bacterium, and the T-DNA is cut by a restriction enzyme.
- Foreign DNA is cut by the same enzyme.
- The foreign DNA is inserted into the T-DNA of the plasmid.
- The plasmid is reinserted into a bacterium
- The bacterium is used to insert the T-DNA carring the foreing gene into the chromosome of a plant cell.
- The plant cells are grown into culture.
- A plant is generated from a cell clone. Al of its cells carry the foreign gene and may express it as a new trait.
- The transformation of a plant cell is successful if the foreign DNA is integrated into one of the cell's chromosomes.
Answer:Polygenic inheritance
Explanation:
Polygenic inheritance is a trait in which multiple genes are responsible for the expression of a single trait. It is also influenced by the environmental factors. For example, skin color. The skin color is infleunce by the genes inherited from parents and also infleunced by the environmental factor like sunlight, prolonged summer season and others.
Answer:
Taxol induces the assembly of microtubules, while Nocodazole suppresses tubulin assembly
Explanation:
Taxol and nocodazole are antimitotic drugs, i.e., drugs that inhibit the progression through the cell cycle, which is useful for killing cancer cells. Microtubules are proteins that act as the 'skeleton of the cell', which need to be reorganized when cells replicate. These structures (microtubules) are composed of α and β-tubulin heterodimers which assemble into protofilaments of microtubules. Taxol is an antimitotic drug that induces the formation of microtubules, thereby inhibiting microtubules' reorganization during mitosis. In consequence, cells treated with Taxol enter into apoptosis (i.e., programmed cell death). Moreover, Nocodazole is known to induce microtubule disassembly by interfering with the polymerization of tubulin monomers. In consequence, Nocodazole is useful to depolymerize the microtubule cytoskeleton.