Research has demonstrated that neural stem cells have an impaired ability to differentiate into functional neurons when subjected to:

Answers

Answer 1

Research has demonstrated that neural stem cells have an impaired ability to differentiate into functional neurons when subjected to ethanol. They found out that treating cultured neural system impairs their ability to differentiate in functioning neurons. With this impairment it seems to be united with aberrant, dense methylation and loci which are active in normal tissue.

Related Questions

A patient with a right lower leg fracture will be discharged home with an external fixation device in place. which information will the nurse teach? science forum

Answers

Hi,
The answer to your question is "check the pedal pulses."

What are the two major misuses of resources geographers observe?

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1) depleting nonrenewable resources like petroleum, natural gas, and coal and 2) destroying otherwise renewable resources with the pollution of air, water, and soil

The two major misuses of resources observed by geographers are the depletion of nonrenewable resources and the destruction of otherwise renewable resources by pollution.

Tranquilizers like xanax work to diminish anxiety symptoms by stimulating the receptor sites for __________, thereby driving down neuronal activity at those sites.

Answers

One way of tranquilizers to diminish anxiety symptoms is by having to stimulate the receptor sites for the GABA or also known as the gamma amino butyric acid. By stimulating this, it will allow the neuronal activity to drive down.

The base triplet is transcribed as a ____________ on a molecule of mrna

Answers

Each one of the DNA base triplet is transcribed as a complementary sequence of three nucleotides , which known as a codon. A codon is a series of three nucleotides. When together, they form a unit of genetic code either in a DNA or RNA molecule.

How many calories are provided by a food that contains 20 grams of carbohydrate, 8 grams protein, and 5 grams of fat?
a. 232
b. 378
c. 157
d. 258
e. 558?

Answers

Every gram of carbohydrate yields 4 Calories.
Every gram of protein also yields 4 Calories.
Every gram of fat yields 9 Calories.

20 g carb x 4 = 80 Cal
8 g protein x 4= 32 Cal
5 g fat x 9 = 45 Cal.

80+32+45 = 157 Calories. Answer C

Calories are used in defining the unit of the food that gives energy to the body. Food containing 8 grams of protein, 20 grams of carbohydrate, and 5 grams of fat provides 157 Calories. Thus, option c is correct.

What are calories?

Calories are defined as the energy provided by the various molecules for the food that needs to be maintained so as not to get obese or underweight. Food containing carbohydrates, fats, and proteins is used to evaluate the calories.

The calories for the food containing this organic molecule are calculated as:

C= 4 carbohydrates + 9 fats + 4 proteins

Given,

Carbohydrate = 20 gm

Fats = 5 grams

Proteins = 8 grams

Substituting the values above as:

Calories = (20) × 4 + (5) × 9 + 4 × (8)

= 80 + 45 + 32

= 157 calories

Therefore, option c. 157 calories are present in the given food.

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In preparing a slide what step ensures that the cells adhere to the slide?

Answers

The step that will ensure that the cells will adhere to the slide is that once it has been placed with the bacteria, it needs to be stained in which dyes are used in making the cells to stay in the slide and for it to be properly be seen and viewed in the microscope. It is best to follow instructions, in order to prevent complications that will ruin the structure inside the slide.

PLz help me with this question!!!!!

Answers

Answer:

asexual reproduction

Explanation:

it starts off with a single nucleus and ends up with 2, there is no obvious chromosomes or spindle fibres to suggest meiosis or mitosis

Dr. mitchell is a scientist studying heredity. she wants to isolate the basic unit for the transmission of heredity, which is a(n) _____.

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The answer in the space provided is gene which is a unit of hereditary, this is being transferred or it is having to be passed down by parents to their child in which will contribute to the child’s characteristics and even behaviors.

N the six steps of the classic scientific method created by galileo and bacon the 5th step is

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1) State the problem
2) Research the problem
3) Formulate a hypothesis
4) Test the hypothesis
5) Formulate a theory
6) Communicate the results

A _______ describes the location of a cell based on its column and row location.

Answers

A Cell Address describes the location of a cell based on its column and row location. A combination of the letter and a number that specifies the column and the row in which a cell is located on a spreadsheet.

A patient with ___________ may appear to be in respiratory arrest, even though he or she is breathing.
a. a massive stroke
b. vomitus in the mouth
c. hypothermia
d. severe blood loss

Answers

A patient with hypothermia may appear to be in respiratory arrest, even though he or she is breathing.
Hypothermia occurs when a body loses heat faster than it can produce heat. It usually occurs in a cold that results in lowering the body temperature.

Why do we need to center the field of view on low power first?

Answers

This is standard procedure. It's easier to focus and locate the specimen under low power using the coarse adjustment; you get a larger field of view. Also it's a safety procedure. The high power objective has a relatively long length and there is a possibility of breaking the glass coverslip and/or slide if the coarse adjustment is used. Most microscopes are "bifocal", that is, in switching from low to high power, the image is nearly in focus with minor adjustment with the fine adjustment.

Which is true about all unicellular and multicellular organisms?

•They are made of one cell
• They reproduce
• They cause infections
• They are made of multiple cells

Answers

Answer:

they both reproduce

Explanation:

Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. ... Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions.

How might it benefit an organism to have the nucleus near the centre of its cells?

Answers

Truly, it benefits since it makes it simpler for the waves to control everything in the cell and for the cell to work all the more appropriate and snappier.
Just the cells of cutting edge organisms, known as eukaryotes, have a core. For the most part, there is just a single core for every cell, except there are special cases, for example, the cells of ooze molds and the Siphonales gathering of green growth. More straightforward one-celled organisms, similar to the microbes and cyanobacteria, don't have a core.

Answer:

For protection and better control.

Explanation:

First of all, if the nucleus was located in the periphery it would be easier for physical damage to reach it, but also for viruses or so, even with the use of vectors. Then, being in the center makes it equally easier to send signals, orders or RNA to each part of the cell.

In giraffes, long necks (n), long legs (l), dark spots (d), and the ability to digest maize (m) are all dominant traits. what possible genotype could a long-necked, short-legged, light-spotted, maize-digesting giraffe have?

Answers

A long-necked, short-legged, light-spotted, maize-digesting giraffe could have a genotype of NN (or Nn), ll, dd, and MM (or Mm). Due to the fact that long necks are dominant, the giraffe would only need one dominant allele to have the phenotype. Therefore the giraffe could have two dominant alleles or one dominant and one recessive. Because long legs and dark spots are dominant, the giraffe must have two recessive alleles for each of these traits. As for maize digestion, the giraffe only needs one dominant allele to have the trait, so they could be MM or Mm.

what societal needs were addressed by science in the ancient world

Answers

Societal needs in the ancient world were addressed in the form of science when it comes to aspects of food and hunting, as well as experimenting with new forms of tools and basic systems that would make the lives in ancient civilizations more efficient and automated.

Like in present, many of the ancient civilizations studied biology. They also came to know about the natural phenomenon and utilized that information to meet the requirements of the society. The herbal medicines were used by Asian civilizations, also the South American civilizations created agricultural methods like irrigation and crop domestication.

The Greek civilizations are well-known in making substantial contributions to the emergence of life science. They are accredited with developing the fundamental guidelines of modern science. School of medicine was established during 400 BCE by the Greek physician Hippocrates. Even the first classification for living species is credited to the Greek philosopher Aristotle.

Select which of the following statements are true about ions:

Two positively charged particles attract each other
A positively charged particle and a negatively charged particle attract each other
A positively charged particle and a negatively charged particle repel each other
Two negatively charged particles attract each other

Answers

Charges of opposite sign attract one another
Charges of the same sign repel each other

so statement 2 and 4 is true.

Answer:

Charges of opposite sign attract one another

Charges of the same sign repel each other

so statement A positively charged particle and a negatively charged particle attract each other ,and Two negatively charged particles attract each other is the correct answer.

Explanation:

Hope it will help if not I only can say sorry

In what form does the human body store excess sugar? In what form do plants store excess sugar?

I AM SO CONFUSED...HELP?

Answers

I hope this helps you.

Final answer:

The human body stores excess sugar as glycogen, mostly in the liver and muscles. On the other hand, plants retain their excess sugars as starch in specific organs like tubers or bulbs.

Explanation:

The human body and plants have a unique way of managing excess sugar, which is useful for future energy needs. In humans, the body stores excess sugar in the form of glycogen.

This process occurs within the liver and muscles. Conversely, in plants, sugar is stored as starch.

This starch is often held within special organs like tubers or bulbs and can be converted back into sugar when the plant needs energy.

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What type of digestion is used to break down small food particles by enzyme action?

Answers

chemical digestions is the type of digestion is used to break down small food particles by enzyme action

The odor from a hospitalized client's draining wound permeates the room and is very overwhelming and distracting to the client and the staff. what intervention would be most helpful?

Answers

a cotton wrap and some isopropyl alchaol

What are the two fundamental roles of dna?
a. to carry out the genetic instructions for protein synthesis, and replicate itself before cell division.
b. to carry out the orders for protein synthesis issued by rna, and to control genetic expression by shutting down genes or altering their expression.
c. to carry out and direct instructions for protein synthesis.
d. to direct protein synthesis, and replicate itself before cell division?

Answers

the two fundamental roles are To direct protein synthesis, and replicate itself before cell division. To make the proteins, our body needed to obtain the required information from the DNA. So it pretty much acted as the main controller in protein synthesis.
During cell division, DNA will split so the Children could obtain half of their fathers DNA and half of their mother's DNA

The fully folded structure of a functional protein composed of a single polypeptide chain is referred to as the _____ structure.

Answers

The closest answer to this problem is Tertiary. Protein are large biomolecules made up of individual single amino acids. It is the Tertiary structure arrangement of protein that would give the functionality and shape of protein when attached to the other molecule.

Justify why the predator/prey relationship is a community level interaction.

Answers

It is an interaction between two different species, so the organism, species and population levels are too low. The community level references interactions between members of different species.

Answer:

It is an interaction between two different species, so the organism, species and population levels are too low.

Explanation:

Which layer of soil is least likely to be penetrated by plant roots? a. O (organic matter) b. A (topsoil) c. B (subsoil) d. C (parent rock)

Answers

The parent rock layer is the layer of soil that is least likely to be penetrated by a plants roots becausenparent rocks can be igneous or sedimentary.

Answer: d. C (parent rock)

Soil horizons are the layers lying parallel to the surface or subsurface layers of soil. These horizons are formed in the process of soil horizon. These sequence of soil horizons is collectively called as soil profile.

The layer or soil horizon, which is least likely to be penetrated by plant roots is C horizon. The C horizon is a layer of soil, which consists of huge aggregates of parent rocks, which are unweathered or partially weathered, lying deep in the bottom of the soil profile. It does not contain organic matter. Also, the texture of the soil is not fine, instead hard rocks are present. Therefore, this layer of soil cannot be penetrated by plant roots.

Marfan's syndrome is a disease associated with faulty manufacture of the extracellular protein fibrillin. since this is a component of elastic fibers, in which of the numbered cells would the damaged gene be expressed?

Answers

There are many organs that made up by the elastic fiber.

The most abundant organ would be skin, bones, and joints. Marfan syndrome will give prominent symptoms as strecth marks in skin, long and thin bone(arms, leg, fingers), lens of the eye, and shape of the chest.

Which lobe or cortex is farthest from the cerebellum?
a. frontal
b. parietal
c. occipital
d. temporal?

Answers

The lobe or cortex is the largest part of the brain, full of thought, perception, imagination. It is a thin layer of gray matter, divided into four lobes with different functions. The frontal lobe is the cortex that is further away from the cerebellum and is responsible for voluntary movements and decisions and is considered the most important lobe where personality and intelligence develops.

Final answer:

The frontal lobe, located at the front of the brain, is the cerebral cortex furthest from the cerebellum.

Explanation:

To determine which lobe or cortex is farthest from the cerebellum, it is important to understand the location of each lobe of the cerebral cortex. The cerebellum is located beneath the occipital lobe, towards the back of the brain. Considering the position of each lobe, the frontal lobe is located in the forward part of the brain and is the farthest lobe from the cerebellum. Therefore, the correct answer is a. frontal.

You have a column made of nickel-agarose matrix. your protein must have ________ to use this column for affinity chromatography.

Answers

Negatively charged R-groups in the primary structure. This is because nickel acts as a cation, therefore you would be attracting anions, in this case it would be on the proteins that would be binding to the column. Once they bind to the matrix a was buffer of high salts can elute the proteins.

Sensory impulses from the lungs are carried to the respiratory center by the

Answers

Vegas nerve I believe. Let me know if you get it correct

In terms of biological function or process, what do the solid arrows shown in Model 2A represent?

Answers

I found the attached image on the internet related to this question.
The solid arrows represent neuronal communication. The stimulus, the effects, and the flow of information is all done by receptors and synapses that send a signals across the body in order to have effective feedback responses promoting the homeostasis of the organism.

Solid arrows in the models typically represent direct interactions or processes such as regulatory activations, substrate binding, electron movement, and carbon fluxes in biological systems. They indicate the direction of process flow and are used to depict regulatory networks, biochemical reactions, and synthetic pathways.

In terms of biological function or process, the solid arrows shown in different models represent various types of interactions and processes. Direct interactions such as regulatory steps, substrate binding, or energy changes are examples of these functions. The solid arrows often indicate the direction of process flow, such as activation in regulatory networks, electron movement in biochemical reactions, substrate or ion transport across a membrane, natural carbon fluxes in ecosystems, or direction of chemical and biological pathways for synthesizing macronutrients. Positive interactions or activations are typically indicated by an arrow pointing from the activator to the target, as seen in signal transduction pathways.

The myocardium is thickest in the ________ ventricle because it must work the hardest to pump blood to the entire body.

Answers

The left ventricle is responsible for pumping oxygenated blood throughout the entire body, which requires a lot of work and pressure, hence why it is super thick.

Final answer:

The myocardium is thickest in the left ventricle as this part of the heart must pump blood to the majority of the body, requiring a thicker muscular wall due to the exerted pressure.

Explanation:

The myocardium is thickest in the left ventricle because it must work the hardest to pump blood to the entire body. The myocardium is the muscular wall of the heart, and it contracts to push blood out of the heart. The left ventricle has to pump blood to all parts of the body, except the lungs, exerting more pressure and needing a thicker myocardium as a result.

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