-Can someone help me translate this sequence into RNA. T A C T T A A G T A T G-

Nerissa is using immunostaining to identify different protein molecules on the cell of a pathogen. Which best describes the proc

Alja [10]

Answer:

She will add color dye to antibodies, and the antibodies will attach to the antigen of the pathogen.

Explanation:

Immunostaining is the process where the antibodies for a specific pathological antigen is combined with fluorescent dye or any other indicator, like enzyme. Fluorescein are common staining materials used because it is easily detectable under UV light. This antibody coated with indicator thus bind to the specific pathogen or protein and help in its identification. Also the pathogenic cell fixation is done to facilitates clear and precise identification.

6 0

3 years ago

Which of the following is true about protein molecules?

Aleksandr-060686 [28]

The correct answer is option A- The shape and folded structure of a protein molecule are important in determining its function.

Justification: Let's take an example of sickle cell anemia in which the structure of hemoglobin changes due to a change in one amino acid. A small change in amino acid will change the bonds which will affect the structure and folding of the protein. A single change of amino acid can results in the change of protein’s function and structure.

5 0

3 years ago

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Which method best helps to prevent wind erosion?

mr Goodwill [35]

Answer:

Growing more vegetation

Explanation:

Soil erosion by wind occurs anywhere when vegetation and climatic conditions are conducive. These conditions include presence of very strong winds and when the soil is loose, dry, and is composed of fine granulated particles.

It also occurs when the soil surface is relatively smooth and there is sparse or no vegetative. It can also occur where there are large fields with no windbreak mechanisms in place.

The best way to reduce wind erosion is to keep the wind off the soil surface by covering the soil surface. This involves growing of more vegetation, either cash crops or cover crops which serves to protect the soil and keep the winds higher off the surface.

Also trees can be planted around the farms to serve as wind breaks which breaks or reduces the force of the winds.

Also, soil compaction which is the process of increasing the density of soil by packing the soil particles closer together causing a reduction in the volume of air can help to prevent wind erosion.

From the given options above, the best option would be growing more vegetation.

Practicing crop rotation serves to preserve soil nutrients and prevent diseases.

Decreasing riverbank slopes prevents erosion by water.

Avoiding soil compaction would lead to more erosion by wind.

4 0

3 years ago

Choose the best answer: Which of the following gives an example of a qualitative observation? * A 10 gram paper clip A two hande

MissTica

A 10 gram paper clip i think

8 0

3 years ago

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"If a neurotransmitter that binds with a metabotropic receptor causes an escalating sequence of events, then a(n) _____ has occu

Kipish [7]

Answer: Amplification cascade

Explanation:

A neurotransmitter is a biomolecule that allows neurotransmission, that is, the transmission of information from a neuron (a type of cell in the nervous system) to another neuron, a muscle cell or a gland, through the synapse that separates them. The neurotransmitter is released from the synaptic vesicles at the end of the presynaptic neuron, towards the synapse, crosses the synaptic space and acts on the specific cell receptors of the target cell. In biology the term receptors refers to the proteins or glycoproteins that allow the interaction of certain substances with the mechanisms of cell metabolism. They are present in the plasma membrane, in the organelle membranes, in the cellular cytosol or in the cellular nucleus, to which other chemical substances such as hormones and neurotransmitters, specifically bind.

The binding of a signaling molecule to its specific receptors triggers a series of reactions inside the cells (signal transduction), whose final result depends not only on the stimulus received, but also on many other factors, such as the cell stage, the presence of pathogens, the metabolic state of the cell, etc. Usually changes in the receptor trigger changes in the permeability of the membrane or a cascade of activation of a series of intracellular signaling molecules. A biochemical cascade, also known as a signaling cascade or signaling pathway, is a series of chemical reactions that are initiated by a stimulus (first messenger) acting on a receptor that is translated into the cell through second messengers (which amplify the initial signal) and ultimately to the effector molecules, resulting in a cellular response to the initial stimulus. At each step of the signal cascade, several control factors intervene to regulate cellular actions, responding effectively to signals about their changing internal and external environments. The "amplification cascade" means that, at each step, the process becomes larger and larger.

So, in many signal transduction processes, an increasing number of enzymes, proteins and substances are involved in the event. This is from the beginning of the stimulus, which starts from the adhesion of a ligand to the membrane receptor. Then to the activation at the receptor, which converts the stimulus into a response, and which, within the cell, causes the chain of steps (signaling cascade or second messenger route) whose result is the amplification of the signal as it was explained. This means, a small stimulus causes a large cellular response.

6 0

3 years ago