Researchers have located no clear proof that serotonin levels or pastimes motivate melancholy, consistent with an assessment of previous research posted in Molecular Psychiatry.
Serotonin is a chemical that contains messages among nerve cells within the brain and at some stage in your frame. Serotonin plays a key function in such frame features as temper, sleep, digestion, nausea, wound recuperation, bone health, and blood clotting.
A great deal stays unknown approximately serotonin and the way it works. however, specialists have related low serotonin interest with a variety of psychiatric troubles, which include depression.
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what are the functions of :
1) Cytoplasm
2) Plasmid
3) DNA in nucleoid
4) Plasma Membrane
5) Cell Wall
6) Capsule
7) Pilus
8) Flagellum
Hello.
(1) Cytoplasm: The cell substance between the cell membrane and the nucleus, containing the cytosol, organelles, cytoskeleton, and various particles. The cytoplasm is responsible for cell shape, material transport like genetic material and products for cellular respiration, and storage.
(2) Plasmid: A segment of DNA independent of the chromosomes and capable of replication, occurring in bacteria and yeast: used in recombinant DNA procedures to transfer genetic material from one cell to another. In other words, it is a small, circular, double stranded DNA molecule, which can replicate independently from its chromosomal DNA. If plasmids are used for experiments, they are called vectors. because genes in plasmids often provide the bacteria with genetic advantages, including for example antibiotic resistance.
(3) DNA in nucleoid: The nucleoid is the region of a prokaryotic cell that houses the primary DNA. The nucleoid contains the genomic DNA, and molecules of RNA and proteins. The main proteins of the nucleoid are: RNA polymerase, topoisomerases and the histone-like proteins: HU, H-NS (H1), H, HLP1, IHF and FIS.
(4) Plasma membrane: The plasma membrane is a thin, flexible boundary between a cell and its environment that allows nutrients into the cell and allows waste and other products to leave the cell.
(5) Cell Wall: The definite boundary or wall that is part of the outer structure of certain cells, as a plant cell. It acts as a skeleton for plants, protects the internal contents of the cell, and regulates cell growth.
(6) Capsule: A pure sample that lasts forever and can be used for testing at any time in the future has been created by extracting and purifying the DNA contained within the capsule to remove any damaging enzymes that may break down the DNA over time.
(7) Pilus: (Simple: Pili are used to transfer DNA and for attachment to surfaces.)
(8) Flagellum: A long, hair-like, motile extension of the plasma membrane; in eukaryotic cells, it contains microtubules arranged in a 9+2 pattern. The movement of flagellum propels some cells through fluids.
Thanks.
A woman has her personal genome analyzed for the brca1 mutation after learning that her father is heterozygous and carries one mutant allele. What is her chance of inheriting the mutant allele from her father?.
The woman's chance of inheriting the mutant allele from her father is 50%. This is because each individual has two alleles for each gene, one from each parent.
So, if the father has one mutant allele and one normal allele, and the mother has two normal alleles, then the child has a 50% chance of inheriting the mutant allele from the father.When one parent is heterozygous for a gene (meaning they have one mutant allele and one normal allele), there is a 50% chance that their child will inherit either the mutant allele or the normal allele. In this case, the woman's father has one mutant allele for the brca1 gene, so there is a 50% chance that she will inherit this allele from him.
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can someone help me with this question i will give them 100 points
we know that there is a chemical reaction if we observe things like a change in BLANK producing a BLANK forming a BLANK or changes in BLANK
A cell undergoing meiosis experiences a problem with its microtubules, such that proper separation of the paired chromosomes carrying alleles q and q does not occur during anaphase i. What is the most likely effect on the four daughter cells?.
All four daughter cells will have a full chromosome set except two is the most likely effect on the four daughter cells.
With the exception of two daughter cells having an extra chromosome containing the Q or q allele and the other two without this chromosome, all four of the daughter cells will have a complete set of chromosomes.
Mitosis divides a parent cell into two identical daughter cells, in which each of which has the same amount of chromosomes. But, Meiosis, on the other hand, creates four distinct daughter cells, each of which has half as many chromosomes as the parent cell.
Half of the original 46 chromosomes, or 23 chromosomes, will be present in each daughter cell. There are two sister chromatids on each chromosome. The daughter cells now enter meiosis II, the third and last stage of meiosis.
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"Which of the following results of Thomas hunt Morgan's experiments with white eyed mutant flies was it unexpected and why out of Mendelian genetics?
a. Among F2 progeny only males had white eyes.
b. All the females had red eye''
Answer:
A.
Explanation:
Morgan determined the white eyed mutant allele must be located on the x chromosomes.
The results of Thomas Hunt Morgan's experiments with white-eyed mutant flies were it unexpected is among the F2 progeny, only males had white eyes. The correct option is a.
What are Thomas hunt Morgan's experiments?With the help of the fruit fly, Thomas Hunt Morgan demonstrated how genes are connected in a series on chromosomes and are in charge of recognizable, inherited features.
His theory was that related genes are placed linearly on chromosomes, whereas genes with low combination frequencies must be located closer together and so more challenging to separate.
A gene is said to be homozygous dominant or homozygous recessive if it has two identical alleles, i.e., two dominant alleles or two recessive alleles. Fruit fly eyes are a homozygous recessive type of white eyes.
Therefore, the correct option is a. Among F2 progeny only males had white eyes.
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(b) Explain why the energy in the mud worms is not all transferred to the organisms that eat them.
To be activated, skeletal muscle fibers must receive neurotransmitter from neurons. What structure must neurons penetrate to activate the myofiber?.
Skeletal muscle fibers require neurotransmitter from neurons in order to be activated. Neurons must enter the endomysium structure to activate the myofiber.
How do neurons work? What are they made of?Neurons are the fundamental constituents of the nerves also known as neurones or nerve cells. The cells known as neurons are responsible for receiving sensory data from the world, sending commands to our muscles, and converting and relaying electrical signals at various points along the road.
Neurons are brain cells, right?The two most common forms of neurons are synapses and glia, a non-neuronal cell type. There are 1 trillion cells and at nearly that many glia in the normal adult human brain. Glial cells are just as important for normal cognitive function as neuron, despite the latter being the most well-known type of brain cell.
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What is the difference between the Haversian Canals and the Canaliculi?
The Haversian canals surround blood vessels and nerve cells throughout bones and communicate with osteocytes through connections called canaliculi.
Haversian canals are a chain of tubes around narrow channels shaped by using lamellae. The Haversian canals surround blood vessels and nerve fibers for the duration of the bone and speak with osteocytes. The canals and the encircling lamellae are referred to as a Haversian gadget.
Canaliculi radiate from the lacunae to the Haversian canal to offer passageways via the tough matrix. In compact bone, the Haversian systems are packed tightly together to form what seems to be a stable mass.
Haversian canals typically run parallel to the surface and along the long axis of the bone and typically comprise one or capillaries and nerve fibers. Volkmann's canals are channels that assist with blood and nerve supply from the periosteum to the Haversian canal.
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Which layer of the skin contains collagen protein and elastin fibers which lend support to the epidermis and give the skin its elastic quality?.
Dermis contains collagen protein and elastin fibers which lend support to the epidermis and give the skin its elastic quality.
Dermis is inner layer of the two main layers of the skin. Dermis has connective tissue, blood vessels, oil and sweat glands, nerves, hair follicles, and other structures.
Dermis is the thickest layer of the skin which is made up of connective and fibrous tissue . These tissues are responsible for providing elasticity and and strength to the skin . It has two layers papillary dermis and reticular dermis .These layers are connected by vast types of nerves and tissues including blood vessel ,nerves endings collagen tissue .
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Supplemental Activities (These are optional and not graded - please do not submit)
1. Research and write a paper about two famous earth scientists.
2. Research and write a paper about Mount St. Helens.
Lesson 1 Review
Directions: Answer each of the questions below.
1. Research and select an Earth Science topic that is interesting to you. Write a 2-3 paragraph summary on the topic, explaining it, and why you think it is interesting.
2. Explain the study of earth science, including its importance on society.
3. Define seismologist, oceanographer, geologist, meteorologist, and hydrologist. Use the key terms/concepts found in the supplemental section if needed.
4. Identify and discuss the various tools scientists use to study the earth.
5. Describe some of the natural hazards and disasters that can occur on earth, how they affect the earth and its population, and how these effects can be minimized.
please help
Kepler and Galileo are the two famous earth scientists. Kepler made the planetary motion laws public. Galileo observed faraway vegetation with the telescope.
Mt. St. Helens frequently referred to as the Mount Fuji of America, used to resemble a conical volcano. This was before it erupted in 1980. Earth science is the study of the four and a half billion years of biotic evolution, the structure, characteristics, and processes of the Earth. Understanding earth science helps us think globally and act locally.
Seismologists concentrate on quakes and other seismic (energy) events that might be dangerous to our safety. Geology is the fundamental study of the earth. Meteorology is the study of the atmosphere. Oceanography is the study of the oceans on Earth. Astronomy is the field of study of the cosmos.
The various tools scientists use to study the earth are compasses, rock hammers, hand lenses, and field books.
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________ involves the conversion of sensory stimulus energy into neural impulses.
Transduction is the process by which neuronal impulses are produced from the energy of sensory stimuli.
What is the scientific term for how sensory information becomes neuronal impulses?In order to produce a sensation, internal biochemical and/or electrical impulses must first undergo a process known as sensory transduction. These signals are then transmitted to and processed by various levels of the central nervous system.
These neurons are photoreceptors, which are the only retinal cells capable of converting light into nerve impulses. These impulses are then sent from the photoreceptor layer to the bipolar neurons in the second layer, followed by the ganglion neurons in the third layer.
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6. You are doing an experiment to measure the amount of oxygen in the air surrounding a Rubric plant when it is in the light and the dark.
Which of the two processes is happening from 0-30 minutes?
Claim-In one sentence say which proce happening.
Evidence-Include numbers from the g describe what is happening to the oxygen in the air around the plant from 0-30 mı...ecs.
Reasoning- Link your evidence to your claim by referring to the equation for the process in your claim.
photosynthesis
6CO₂ + 6H₂0 + energy → C₆H₁₂O₆ + 6O₂
aerobic respiration
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂0 + energy
Photosynthesis and cell respiration are closely related. Among other aspects to consider, photosynthesis releases oxygen to the environment, while respiration consumes oxygen. Photosynthesis is happening from 0-30 minutes.
How are photosynthesis and cell respiration related?
Photosynthesis and respiration are two complementary processes.
Photosynthesis occurs in chloroplasts, while respiration occurs in mitochondria.The photosynthetic process needs solar radiation to produce organic compounds (C₆H₁₂O₆), while the respiration process needs organic compounds (C₆H₁₂O₆) to obtain chemical energy.Photosynthesis transforms CO₂ into organic compounds during the Calvin cycle, while respiration transforms organic compounds into CO₂.Photosynthesis breaks down water molecules, while respiration produces them.In the process of photosynthesis, it occurs a release of oxygen (O₂), which is then used during the respiration process. Both processes are part of the carbon biological cycle.Electron transport chains are present in both processes and are used to capture energy, which will be used in other cellular reactions.Respiration's final products are CO₂, ATP, and water.Photosynthesis' final products are carbohydrates and oxygen release.The information provided before are resumed in the reactions provided on the first page of this text.
Photosynthesis uses solar energy, CO₂, and water to produce carbohydrates (C₆H₁₂O₆) and release oxygen.Respiration uses carbohydrates (C₆H₁₂O₆) and oxygen to produce CO₂, water, and energy (ATP)On the second page, we can see an Oxygen vs Time graph, where the two variables are,
independent variable ⇒ Timedependent variable ⇒ OxygenThis graph shows the evolution with time of oxygen concentration in the air surrounding the Rubric plant.
This graph reflects that
During the first 30 minutes, oxygen levels increase. From 30 minutes to 60 minutes, oxygen levels decrease.Since during photosynthesis there is a release of oxygen that occurs when water molecules break, we can expect an increase in the molecule concentration in the air surrounding the Rubric plant. We can assume that photosynthesis is happening during the first 30 minutes.
Since the respiration process consumes oxygen, we can expect a decrease in the molecule concentration in the air surrounding the Rubric plant. This process might take place from 30 to 60 minutes.
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Which component of eukaryotic cells is critical for the correct sorting and transport of proteins?.
According to the article, what percent of your muscles are found in your lower body (Glutes, Hamstrings, Quads Etc.) ???
O 50%
O 55%
O 60%
O 65%
Answer:
we have 55 percent of muscle in . the lower bode
Which is true of unsaturated fats? not saturated with hydrogen animal fats solid at room temperature
A single bacterium divides through the process of ______________ and begins a new population. All the offspring bacteria have identical DNA. (which means no genetic diversity)
a. meiosis
b. binary fission
c. mitosis
d. conjugation
Answer:
binary fission
Explanation:
I learned it science class lol
Binary fission = The process bacteria go through to reproduce
Mitosis = Cell division where the DNA is the same
Meiosis = Cell division with random DNA (reproduction cells)
Conjugation = i forgot this one
The diagram shows several different cells. Some of the cells are prokaryotic, while others are eukaryotic.
Select the three cells that are most likely to only reproduce asexually through binary fission.
Cell 1
Cell 2
Cell 3
Cell 4
Cell 5
Cell 6
Answer:
Probably 1, 6, and 5. I'm guessing the answer is whichever ones don't have a nucleus
Explanation:
Binary fission is common among prokaryotes (cells without a defined nucleus)
How do polar bears maintain homeostasis in freezing cold weather? Responses Their metabolism speeds up to produce heat. Their metabolism speeds up to produce heat. Their metabolism slows down to preserve heat. Their metabolism slows down to preserve heat. Their thick fur retains heat. Their thick fur retains heat. Their thick skin insulates the internal organs against the cold.
In order to maintain homeostasis in the bitterly cold climate, polar bears slow down their metabolism in order to conserve heat.
Definition and examples of homeostasisIn reaction to environmental changes, an organism can maintain internal stability through the process of homeostasis. The best illustration of homeostasis is the internal temperature of the human body.
Why does homeostasis matter?The body's homeostasis keeps all cell activities and the activity of its enzymes operating at their optimum levels. Keeping a steady internal environment despite deal with the changing factors is what it means to maintain equilibrium. These include managing blood pressure and blood sugar levels in the human body.
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where do the products of the link reaction pyruvate oxidation go
The products of the link reaction pyruvate oxidation occur in the mitochondrial matrix during the Krebs cycle and its product (i.e. reduced nicotinamide adenine dinucleotide) goes to the oxidative phosphorylation process in the electron transport chain.
What is pyruvate oxidation?Pyruvate oxidation refers to the reaction which is associated with the oxidation of pyruvate to generate acetyl CoA, which is used to generate reduced nicotinamide adenine dinucleotide that acts as a reducing agent in the oxidative phosphorylation.
Therefore, with this data, we can see that pyruvate oxidation is aimed at generating ATP by the production of reduced nicotinamide adenine dinucleotide.
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What is the end result of translation?
When throwing a ball, why does the triceps muscle contract?
The fusing of golgi vesicles at the metaphase plate of dividing plant cells forms what structure?.
The fusing of golgi vesicles at the metaphase plate of dividing plant cells forms a cell plate.
Metaphase plate is an imaginary line that's equidistant from the 2 poles. throughout metaphase the chromosomes assemble on the metaphase plate, an imaginary line wherein the chromosomes are aligned before segregation in the course of Anaphase.
All through mitosis, chromosomes are certain to microtubules emanating from each poles of the mitotic spindle thru sister-kinetochores and aligned at the metaphase plate exactly within the middle of the spindle. The equatorial position of the metaphase plate is a exceptional function of metazoan, plant, and many fungal cells.
For the duration of metaphase, the condensed chromosomes are oriented at the equatorial plane (metaphase plate) whilst the microtubules (that fashioned in the course of prophase) would attach to the kinetochores in order that inside the preceding stages the chromosomes could separate and move towards the other poles, in the end forming.
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One kind of plasmid in bacteria is called an r plasmid. What kinds of genes are typically present on such plasmids?.
The kinds of genes typically present on the such plasmid is antibiotic-resistant genes and heavy metal resistance genes.
Plasmids contain genes such as antibiotic resistance genes transgenes and reporter genes. These types of plasmid genes may be naturally occurring or constructed by scientists. Plasmids are extrachromosomal genetic elements found in many strains of bacteria. They are small circular DNA molecules that replicate independently on the bacterial chromosome.
Plasmids are found primarily in bacteria Achaea and other multicellular organisms. The discovery of R plasmids confirms that bacteria not only contain natural resistance genes, but can acquire resistance to resist survival pressures. This resistance is transmitted not only vertically, but also between species. Usually non-essential genes. Mutation and recombination create diversity. The organisms best suited to the environment are selected by natural selection.
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What’s the correct answer answer asap for brainlist
Biological Evidence and the Fossil Record
Short Writing
Active
Prompt
There are multiple lines of evidence that provide support for common ancestry and evolution. Write 3-4 paragraphs
describing at least three of them in detail. Provide at least one example for each line of evidence.
The diverse portions of the evidence that commonplace ancestry are homologous organs, fossil data, and embryological studies.
Some of the bodily proof, bloodstain is one of the maximum commonplace biological portions of proof at the crime scene, especially in violent crimes. Bloodstains are often visible on the crime scene and can be easily detected due to their shade and structure.
Biological evidence may be referred to as biological materials or substances including hair, tissue, bones, teeth, blood, semen, or different physical fluids including objects containing biological cloth, and used to corroborate and offer to imply proofing assertions or claims in trials.
Additionally, biological material can be a source of DNA which could allow an individual to be related to a scene and a specific biological sample. DNA may be obtained from a diffusion of resources consisting of blood, skin cells, semen, hair, saliva, and tissue. sure sorts of DNA evidence are more probative than others.
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I need answer of all of it! Plessss
Answer:
could you make the graph a bit clearer?
Explanation:
If 35s was found in progeny phages rather than 32p, hershey and chase would have concluded that.
Hershey and Chase would have drawn such conclusion if 35S rather than 32P had been discovered in progeny phages. The host cell is invaded by phage protein.
What did Hershey and Chase label when they added 35S to bacteriophages?They did this by cultivating bacteriophages in two distinct media, one of which contained radioactive sulphur 35S (sulphur is an amino acid that is present in some amino acids) to label the bacteriophage's protein coat and another of which had radioactive phosphorus to mark the DNA core.
Why did Hershey and Chase conduct their experiments using the isotopes 32P and 35S?Because phosphorus is found in deoxyribonucleic acid (DNA), but not in protein, it was chosen for the Hershey-Chase experiment as the 32P. In contrast, the amino acids cysteine and methionine contain sulfur (S). Thus, 35S was because DNA lacks sulfur, it is only utilized to identify proteins.
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Which best describes Active Transport?
A. Using energy, membrane proteins pick up particles and move them with the concentration gradient.
B. Using energy, membrane proteins pick up particles and move them
against the concentration gradient.
C. Using energy, glycoproteins pick up particles and move them against the concentration gradient.
D. Without energy, particles move freely with the concentration gradient.
If glycated haemoglobin (HRA1c) is abnormally high in a diabetic, what does this imply with respect to their metabolic control?
Hemoglobin (Hb) is a first-rate circulating protein liable to glycation.
In a high HbA1c method we have got too much sugar in our blood. this indicates we are much more likely to expand diabetes headaches, like severe problems with our eyes and feet. knowing our HbA1c degree and what we can do to decrease it'll assist we reduce our chance of devastating headaches.
Hemoglobin (Hb) is a chief circulating protein susceptible to glycation. Glycated Hb, namely HbA1C is used as a useful device in the diagnosis of diabetes progression. Many studies have shown sturdy effective associations between increased HbA1C degrees and current cardiovascular disorder and main threat factors.
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What part of the DNA molecule makes up the "rungs" of the DNA ladder? A. phosphate B. sugar C. nitrogenous bases
