Option b The presence of H3K27me element would make you most confident that a region is facultative heterochromatin and not constitutive heterochromatin.
Eukaryotic genomes contain heterochromatin, which serves a variety of purposes including limiting DNA replication and repair and silencing of gene expression. Heterochromatin separates from euchromatin spatially within the nucleus and is preferentially positioned around the nucleolus and nuclear periphery. In contrast to euchromatin, which is less condensed, richer in genes, and more readily transcribed, heterochromatin is highly condensed, gene-poor, and transcriptionally silent (Huisinga et al. 2006). Differentiating euchromatin from heterochromatin are nucleosome changes. The active transcription of DNA into mRNA products occurs in the presence of euchromatin. Gene regulatory proteins and RNA polymerase complexes can attach to the DNA sequence thanks to the unfolded structure, which can then start the transcription process. The distal arms of chromosomes include euchromatin, which is present in a decondensed form. Typically, it is spread out all across the nucleus.
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which of these lines of evidence would not be used by a biologist to determine the relationship between two organisms?
Answer:put in the comments the options.
Explanation:
What do scientists think were the first eukaryotic organisms on Earth?
euglena
paramecium
plasmodium
amoeba
According to the given information euglena were the first eukaryotic organisms on Earth.
What organism is eukaryotic?Eukaryotes are organisms whose cells have membrane-bound organelles in addition to a nucleus. Eukaryotic organisms come in a wide variety, along with most algae, all mammals, vegetation, fungus, and protists. Eukaryotes can have a single cell or many cells. They are referred to as the "powerhouse of the cell" because they generate energy (ATP). helps to control the metabolism of cells.
What five eukaryotic organisms are examples?Humans, fungi, protists, and plants are eukaryotes cell examples. They have chromosomes, which organize the genetic material. Eukaryotic have the Golgi, mitochondrial, golgi apparatus, and nucleus. Let's look more closely at the elements of eukaryotic cells.
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the respiratory system and the system equally share the responsibility of supplying oxygen to, and eliminating carbon dioxide from, the body’s cells.
The respiratory system and the cardiovascular system equally share the responsibility of supplying oxygen to and eliminating carbon dioxide from, the body’s cells.
In both animals and plants, the respiratory system is a biological system made up of particular organs and structures that are employed for gas exchange. Depending on the size of the organism, its habitat of residence, and its evolutionary background, the anatomy and physiology that cause this vary widely. The heart, blood, and blood vessels make up the body's cardiovascular system (arteries and veins).
The medical specialty that focuses on the cardiovascular system is known as the heart and vascular services. Both the respiratory system and the cardiovascular system deal with the movement of oxygen throughout the body. Both systems are engaged in eliminating waste products, specifically carbon dioxide, from the tissues and ultimately from the body.
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What does like a trees growing on that side?
Answer:
in order to answer that, you have to provide more information about your question
A company has developed a detergent that disrupts biological membranes by mimicking the structure of their phospholipids. It is most likely that the active ingredient.
The active ingredient of a detergent that disrupts biological membranes by mimicking the structure of their phospholipids is a type of molecule that contains polar and hydrophobic non-polar sequences capable of inserting into the cell membrane in order to break connections among phospholipid molecules.
What is the cell membrane?The cell membrane is a bilayer mainly composed of phospholipids molecules, which are formed by phosphate heads that are polar and fatty acid chains that are hydrophobic and non-polar. We can break bonds in the cell membrane by using detergent molecules capable of inserting into it.
Therefore, we can conclude that the cell membrane can be disrupted by molecules that are similar to its phospholipids in order to be inserted into it.
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Which of the following structures in recombinant DNA contains unpaired overhanging nucleotides after DNA is cut with a restriction enzyme?
A. DNA library
OB. Sticky ends
OC. Blunt ends
OD. DNA ligase
Answer:
OB
Explanation:
it's called sticky ends.
as the human population has increased, the result on natural capital has been . group of answer choices increasing biodiversity decrease in waste production increasing the use of net primary production by humans increasing available renewable resources. increasing natural predators
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what might an engineer need to consider when designing a heating/cooling system for a home in a cooler climate?
How might the design differ for a house found in a warmer climate?
An engineer might need to use passive construction when designing a heating and cooling system for a home in cooler climate and hot climates.
The engineers should ensure that he constructs a passive housing system. Windows in the living room must face true south or within 30 degrees of it according to passive design.
Any way of heating or cooling a home that doesn't involve energy input from the occupants or a mechanical device is considered passive heating and cooling.
To use passive heating, all of your doors and windows must be absolutely airtight. You should have double-paned or triple-paned windows since badly built ones will allow the heat from the sun to just flow back out. The ability of the window to retain internal heat and keep out outside air improves with the number of layers of glass.
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What is the evidence of climate change do to sea level rising?
Answer:
The first effect of the rising global temperature is that as oceans warm, seawater expands, taking up more space in the basin and causing the level of the ocean to rise. Secondly, ice melts on land, adding water to the ocean.
Explanation:
The presence of abnormally low concentrations of protein in the blood is known as.
A person with hypoproteinemia has very low quantities of protein in their blood.
What are proteins?Each and every component of the human body depends on proteins. Nearly all important organs and tissues, including bones, muscles, and skin, contain them. Protein is a nutrient that must be obtained from food for the body to survive and function. Protein cannot be long-term stored by the body for use in the future, so people must take enough of it daily to provide their bodies what they need to function properly.
What is the cause of hypoproteinemia?In industrialized nations where the majority of people eat a well-balanced diet, hypoproteinemia is unusual. However, those with particular medical disorders or those who consume diets low in protein run the risk of developing the illness.
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A student hypothesizes that the solute concentration of grape juice is higher than the solute concentration of the actual grape because the grape juice has added sugar. Based on the data in table 1, which of the following best evaluates the student's hypothesis?
The sentence that best evaluates the student's hypothesis is-
The hypothesis is not supported because the mass of the grape increased in grape juice.
What is mass?A physical body's mass is its total amount of matter. Inertia, or the body's resistance to acceleration (change of velocity) when a net force is applied, is also measured by this property. The gravitational pull an object has on other bodies is also influenced by its mass.
The kilogram is the fundamental mass unit in SI. Although mass is frequently determined by measuring an object's weight on a spring scale rather than a balance scale and directly comparing it with known masses, mass and weight are not the same things in physics. Although there is less gravity on the moon than there is on Earth, an object would still have the same mass.
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2. Hoag hopes that Dr. Potbury will inform him that the substance under his
fingernails is blood. When he is informed that this is not the circumstance, he is
desperate to know its true nature. Speculate as to what it could possibly be.
|
Robert A. Heinlein's "The Unpleasant Profession Of Jonathan Hoag"– things do not end nicely.due to an excessive passion of life,With fear and hope freed free,In a simple prayer of thanks, we thank.
Describe" unpleasant profession of Hoag"
Ted awakens to discover Cynthia seemingly in a coma.He covers every mirror in the apartment with paint after realizing that the dreams were accurate.The only physician he knows, Potbury, is immediately called to come see Cynthia.When Ted repeats the Sons of the Bird's catchphrase, "The Bird is Cruel!" to Potbury, he obsessively conceals his face, just like the Sons did. Potbury diagnoses her with lethargica gravis.Ted overpowers Potbury after realizing he is one of them and imprisons him in the restroom.Hoag answers the phone and arrives at the residence.Hoag claims that lethargica gravis is simply another name for "deep sleep" when told about Potbury.When they open the bathroom door, they discover Potbury is no longer there. He gives them a list of items to bring and departs, leaving them rather perplexed. Ted and Cynthia find Hoag there after arriving at the park with the fine dishes and wines he ordered.They enjoy an epicurean picnic while Hoag reveals that he is an art critic.Their entire world was conceptualized by a "artist" as a school project.In order to evaluate the experiences, critics live as regular people in the world without realizing they are critics.As Hoag notes, one such experience is eating and drinking, since the basic act of obtaining energy to survive had not previously been considered to be a "experience".Another is sex, which is initially dismissed as absurd before Hoag discovers that it forms the cornerstone of "the tragedy of human love" that he observes between two people. Ted and Cynthia have seen everything, including Hoag during the daytime, and it was all caused by the Sons of the Bird.To learn more about "The unpleasant profession" refer
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pongids: a. are incapable of walking bipedally b. can walk bipedally only by holding on to branches with their arms c. are capable of bipedal locomotion, but inefficiently d. are, in fact, habitually bipedal
One of the earliest adaptations made by hominids was bipedalism, and there are several theories as to how the human ancestors acquired it. One of them claims that after a group of our ancestors started living in Savannah habitats, bipedalism emerged (open areas covered with grasses). The Savannah lineages didn't have many trees to climb, so the upright posture let them see predators in the distance. Other lineages remained in the forests, where they could use the treetops and branches for protection and to collect food.
The second theory links the use of tools to the evolution of human bipedalism. The two forelimbs are free to explore the environment, aid in the use of tools, and even gather food while moving because a species does not move on all four limbs.
With this knowledge, we can conclude that bipedalism gave the human race a free arm to build technology and allowed them to move more slowly while walking, among other benefits.
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Consider the cell cycle shown below. A cell will stop dividing and go into Go, the resting phase, if it
receives the proper signal at the G₁ checkpoint.
what is the treaty, now signed by over 136 countries, that lists almost 700 species that cannot be commercially traded as lives specimens or wildlife products because they are endangered or threatened?
C.I.T.E.S. is the treaty signed over by 136 countries , listing 700 species cannot be traded because of endangered or being threatened.
What is species and what is endangered species and what C.I.T.E.S. states?Species is the smallest unit of taxanomy hierarchy, representing lot of characters similar and common.Endangered species are the ones that are threatened to be extinct but are not , so they are under protection .C.I.T.E.S. the convention on international trade in endangered species states the protection of threatened species.It is basically a treaty ensuring the international trade of animals and pants do not disturb the species.Hence C.I.T.E.S. is the treaty signed by over 136 countries listing 700 species that cannot be commercially traded.To know more about species visit:
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you are working with strains of zymomonas mobilis to select the best strain for bioethanol production. you are trying to find the strain that requires the shortest time to grow. if the strains have the following growth rate constants, which would you choose to meet your criteria?
Whatever number is the highest, is the one you choose while i am working with strains of zymomonas mobilis to select the best strain for bioethanol production.
Zymomonas mobilis is a Gram negative, facultative anaerobic, non-sporulating, polarly-flagellated, rod-shaped bacterium. It is the only species found in the genus Zymomonas mobilis . It has notable bioethanol-producing capabilities, which surpass yeast in some aspects.
However, ethanol produced from renewable energy sources is one of the most promising bioethanol for the future. Although bioethanol fuels can be manufactured using the chemical reaction between ethylene and bioethanol, it is mainly produced through fermentation of sugars derived from crops containing starch, such as corn, wheat, sugar cane, sorghum plants, etc.
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Which is the application of scientific knowledge to solve problems or create new products?
curiosity
technology
inquiry
geology
NEED HELP ASAPPPP!!!!!!!!!!!
According to the research, the correct option is technology. Technology is the application of scientific knowledge to solve problems or create new products.
What is Technology?It is a knowledge that comes directly from the field of science to achieve a solution that allows human beings to solve a given problem.
In this sense, it is a process that uses a combination of scientific knowledge, in the design and definition of procedures to build new products or give it another function.
Therefore, we can conclude that technology is the application of a set of scientific knowledge to satisfy a need in a specific field.
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Help!!!! 55 points!!! Quickly!!
Answer:
1. Their tails are turned towards them to prevent hydrophobic tails from coming into contact with the water
2. The unsaturated fat has double bonds in the fatty acid chain
Explanation:
meiosis is a continous process but we can think of it as taking place in two stages meiosis i and meiosis ii. describe the products of each stage. how do the product
A reduction division and an equatorial division make up meiosis. To create gametes, meiosis I and meiosis II are necessary.
Meiosis II resembles a mitotic division, whereas meiosis I is a special cell division that only happens in germ cells. Meiosis, which decreases chromosome counts from diploid to haploid, and conjugation (fertilisation), which restores the diploid state by joining two haploid cells, are the two opposing processes that make up this. Chromosome segregation and recombination are the two processes that meiosis uses to create variety. As in mitosis, sister chromatids (the two halves of a duplicated chromosome) still need to be separated. The homologous chromosomes, which an organism acquires from both of its parents and are similar but not identical, must also be separated.
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Questions on The excretory system
The excretory system is a passive biological system that removes excess, unnecessary materials from an organism's body fluids in order to help maintain internal chemical homeostasis and prevent body damage.
The excretory system is what?Organs of the human excretory system enable the elimination of nitrogenous wastes from the body. The kidney, ureter, urinary bladder, and urethra are the primary excretory organs. Blood is filtered through the kidneys, and the result is urine.
The answers are follows
The first claim is accurate since diabetes either results in insufficient insulin production or insufficient insulin use by the body. Without insulin, blood glucose levels rise to an unmanageable level that your kidneys are unable to filter and reabsorb.The kidneys receive oxygenated blood from the heart through the renal artery.We discovered that the concentration of urea may be higher in the renal vein than in the renal artery after fruitless attempts to gauge the blood flow rate through the kidney.Nitrogenous wastes are typically present in the deoxygenated blood that passes through the renal vein.More glucose is found in the renal artery than the renal vein.To know more about excretory system, refer
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Write about one example of a positive feedback in the human body. Name what the stimulus is and how the response impacts this stimulus. Someone please help me with this assignment
Answer:
reproduction
Explanation:
Basically a positive feedback in the human body is bedroom reproduction. got em
2 What type of chemical reaction is involved in the formation of disulfide bonds?
A condensation
B hydrolysis
C oxidation
D reduction
How to use a caesura in a sentence
Write a example pls I need help
Answer: It can be placed anywhere after the first word and before the last word of a line.
Which of these is NOT found in prokaryotic cells?
A. Nucleus
B. Cytoplasm
C. Ribosomes
Answer: option "A" is correct.
Explanation: prokaryotes do not have nuclei or membrane-bound organelles.
The principle of ________ states that organisms succeed one another in a definite, determinable order that can be used to recognize a specific time period.
Answer:
Fossil Succession
Explanation:
Need help asap please
(a) Organelle responsible for detoxification of alcohol in all three samples:
Smooth endoplasmic reticulum
(b) Lysosomes remove the damaged part of organelles.
(c) Steps involved are:
Autophagy is the process which allows body to break down and also reuse old cell parts so that cells operate efficiently. It's a natural cleaning process that begins when cells are deprived of nutrients.
Smooth endoplasmic reticulum helps in detoxifying poisons and drugs in the liver.
Lysosomes are the vesicles that digest excess or worn out organelles, food particles. The membrane surrounding a lysosome prevents the digestive enzymes from destroying the cell. It is an acidic, membrane-bound organelle .The degradation is carried out by hydrolytic enzymes present within the lysosome.
Process by which old organelles and malfunctioning cellular parts are removed from a cell is called Auto phagocytosis. Initially, they are enveloped by internal membranes that then merge with lysosomes
Natural process that involves breaking down damaged or unwanted components in a cell and also reusing the for the formation of new cells is called Autophagy . It helps in keeping the cells healthy.
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Write a paragraph explaining how nucleic acids and proteins work together to provide instructions for the structures and functions of an organism.
Answer:
Nucleic acids, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), carry genetic information which is read in cells to make the RNA and proteins by which living things function. The well-known structure of the DNA double helix allows this information to be copied and passed on to the next generation.
Explanation: i know.
Answer:
The nucleic acids contain the instructions for everything else on what to do, they go to the proteins and then kind of mix, they then go throughout the cell feeding it, along with giving the instructions.
Explanation:
During photosynthesis in a eukaryotic cell, an electrochemical gradient is formed across the ___________.
During photosynthesis in a eukaryotic cell, an electrochemical gradient is formed across the Thylakoid space.
What is Thylakoid space ?
The thylakoid space is the area inside the thylakoid. A thylakoid is a membrane-bound disc found in plant chloroplasts. The thylakoid membrane contains enzymes required for photosynthesis's light-dependent reactions. During photosynthesis, an electrochemical gradient or proton motive force is created by the release (photolysis) or movement of protons from the stroma into the thylakoid lumen. The energy released during this movement is used by ATP synthase, CF o, and CF1 particles to form ATP mole.
Inside chloroplasts and cyanobacteria, thylakoids are membrane-bound compartments. They are the site of photosynthesis's light-dependent reactions. Thylakoids are made up of a thylakoid membrane that surrounds a thylakoid lumen. Chloroplast thylakoids frequently form grana, which are stacks of discs. Grana are linked together by intergranal/stromal thylakoids, which connect granum stacks as a single functional compartment. Chlorophyll pigments are found in packets called quantasomes in thylakoid membranes. Each quantasome has between 230 and 250 chlorophyll molecules.
The thylakoid membrane is the site of photosynthesis's light-dependent reactions, with photosynthetic pigments embedded directly in the membrane. It is an alternating pattern of dark and light bands 1 nanometre in width. The thylakoid lipid bilayer is similar to prokaryotic membranes and the inner chloroplast membrane.
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During photosynthesis in a eukaryotic cell, an electrochemical gradient is formed across the _Thylakoid membrane in the mitochondria_.
An ion that may flow across a membrane typically exhibits an electrochemical gradient, which is a gradient in electrochemical potential. The gradient is made up of two components: an electrical gradient and a chemical gradient, or a difference in charge across a membrane and solute concentration, respectively. What is the Thylakoid membrane?In chloroplasts and cyanobacteria, the light-dependent photosynthesis processes occur in thylakoids, which are membrane-bound structures that resemble sheets. Chlorophyll, which is present there and used to absorb light and utilize it for biological processes, is where it is found. Thylakoid is short for the pouch and has the -oid ending.Lamellae, another name for thylakoids, can also refer to the part of a thylakoid that joins grana.The water photolysis, electron transport chain, and ATP synthesis processes are all carried out in the thylakoid.The thylakoid membrane is the location of the light-dependent processes in photosynthesis because it contains photosynthetic pigments (such as chlorophyll). With a large surface area to volume ratio due to the stacked coil form of the grana, photosynthesis is made more efficient.To learn more about Thylakoid membrane, refer to:
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which of the following statements is NOT part of the cell theory A. cells can absorb food and oxygen B. cells are basic units of structure and function in living things C. All cells are produced from other cells D. All living things are composed of cells
A pick up line( school appropriate) about cytoskeleton