as they emerge from the ribosome, signal sequences are recognized and bound by a(n) ... select an answer and submit. for keyboard navigation, use the up/down arrow keys to select an answer. a trna b signal peptidase c signal recognition particle d signal recognition particle receptor

The transmission of specific epigenetic markings to offspring is referred to as epigenetic inheritance.

Generally speaking, epigenetics refers to changes in a cell's gene expression profile that are not brought on by modifications to the DNA sequence. In some circumstances, the paternal contribution is the primary source of epigenetic inheritance. It is crucial to demonstrate that the inherited phenotype requires passing through the gametes when considering transgenerational epigenetic inheritance (i.e., sperm and eggs). The fact that stressed-out moms generate stressed-out offspring is an instructive illustration.

Only the fourth generation can be deemed "event-free" and unblemished since a pregnant woman's exposure to a given environmental factor may even directly damage the germ cells of the kids. Only his sperm can be altered by an event that causes an epigenetic alteration in the father, resulting in dependable nongenetic inheritance in the third generation.

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A transcription unit is a segment of DNA that is translated into an RNA molecule and contains at least one gene.

The enzyme RNA polymerase, which binds to and moves along the DNA molecule until it recognizes a promoter sequence, catalyzes transcription.

When a gene creates a protein, transcription results in messenger RNA (mRNA), which is then used as a template for translation to create the protein. There are five steps.

First phase of transcription:

1. DNA double helix unwinds to expose the nucleotide bases

2. RNA polymerase identifies the start sequence

3. RNA polymerase adds bases that are complementary to the DNA template

4. RNA polymerase identifies the termination sequence

5. mRNA strand and RNA polymerase are released

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Schizophasia also called word salad is used to describe incoherent, loose word associations that sometimes appear in the speech of a diagnosed person with schizophrenia.

The term "word salad," also known as "schizophasia," is most frequently used to describe a symptom of a neurological or mental disease. It is defined as "a jumbled or incoherent blend of apparently random words and phrases." Particularly used to characterize the muddled language that may be present in schizophrenia is the word "schizophrenia."

Word salad, which is characterized as "a tangle of severely incomprehensible speech as occasionally witnessed in schizophrenia," has been used to describe individuals with different forms of dementia, such as Alzheimer's. This kind of connection, which may be shown in both spontaneous speech and the word association test, connects two words by using a covertly whispered intermediary word.

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Based on phylogenetic bracketing, knowledge that both birds and crocodiles have four-chambered hearts would lead us to conclude that ornithischian dinosaurs and saurischian dinosaurs also have four-chambered hearts.

ornithischian, a certain member of the humongous taxonomic group of herbivorous dinosaurs that includes Triceratops and all dinosaurs related to it more closely than birds. The saurischians make up one of the two primary types of dinosaurs, the other being the ornithischians. Ornithischians were so named because their hip bones were superficially similar to those of birds, with a large portion of the pubic bone pointing down and toward the tail rather than down and forward as in other reptiles. Ornithischians, despite their name, are not related to birds, which evolved from theropod saurischian dinosaurs.

Theropods and sauropodomorphs are the two major groups of saurischians. Theropods were two-legged carnivores that evolved into birds at least 144 million years ago from theropods. Like all other tetrapods, saurischian, or "lizard-hipped," dinosaurs had pelves (hips) made up of three elements: the ilium, ischium, and pubis. The saurischians are divided into two groups. Sauropoda were large herbivores that included Apatosaurus and Diplodocus.

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Because one triglyceride molecule produces three fatty acid molecules, each of which contains up to 16 or more carbons, fat molecules provide more energy than carbohydrates and are an essential source of energy for the human body.

Food's energy content is an essential feature. The food you consume provides the energy your body requires for running, talking, and thinking. The quantity of heat produced by the combustion of one gram of a material is measured in joules per gram (J/g).

Fats are the slowest energy source yet the most energy-efficient type of food. Each gram of fat has around 9 calories, which is more than twice as much as proteins or carbs. Because fats are so unhealthy

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The best example of how a government agency can apply environmental science is that  Purchase only free-range, organic chicken.

Registered dietician Nancy Goodwin of the American Dietetic Association says that animals raised and allowed to forage on pasture incorporate greater omega-three fatty acids, alpha-linoleic acid and conjugated linoleic acid, however much less ordinary fats than their historically raised counterparts.

Chickens are omnivores with the aid of using nature and revel in chasing down plant-destroying bugs like grasshoppers, grubs, beetles, and larvae, ridding a place of ability pests in a completely brief time. Many of our natural farmers depend upon their chickens as a natural “insecticide” for his or her flower and vegetable gardens. Organic meat has a excessive nutrition and dietary value, which undoubtedly influences the human body.

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After leaving the source of emf, an electron's potential energy is lower.

The voltage or potential difference of a battery or other electrical energy source is known as the electromotive force. A resistor is where the emf is coming from. The potential energy of an electron will now be higher than the potential energy of an electron before it leaves the source emf.

Now, the potential energy of an electron before leaving the source of electric current will be greater than the potential energy of an electron after leaving the source of electric current because the resistor connected to the source of electric current will reduce the potential energy by converting some of the energy to heat.

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Using negative feedback to decrease blood glucose levels method best describes the process. After a person eats a large meal, the level of glucose (a carbohydrate) in the blood increases. In response, the body releases insulin.

Blood sugar or glucose is the primary sugar withinside the blood. It is obtained from the food you eat and is your body's primary source of energy.The blood carries glucose to cells throughout the body for use as energy.Diabetes is a sickness wherein blood sugar stages are too high.

A fasting blood glucose level of 99 mg/dL or less is normal, 100 to 125 mg/dL is prediabetes, and 126 mg/dL or more is diabetes.

Negative feedback is when the output from the system is then fed back into the system to minimize or reduce the effect of subsequent iterations. Therefore, in markets, negative feedback loops can reduce volatility, for example through contrarian and value investing.

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Ventilation perfusion coupling means that more blood flows past functional alveoli than past non-functional alveoli. This statement is true.

The relationship between ventilation and perfusion processes in the respiratory and cardiovascular systems is known as ventilation-perfusion coupling. Perfusion is the process of pulmonary blood circulation that delivers oxygen to body tissues, whereas ventilation is the movement of gas during breathing.

Matching ventilation and perfusion. Ensuring adequate matching of ventilation and perfusion of the lungs is critical for ensuring continuous oxygen delivery and carbon dioxide removal from the body.

A V/Q mismatch occurs when part of your lung receives oxygen without receiving blood flow or when blood flow occurs without receiving oxygen. This occurs when you have an obstructed airway, such as when choking, or an obstructed blood vessel, such as a blood clot in your lung.

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Answer:

Hematuria

Explanation:

Hematuria is the presence of blood in a person’s urine

The graph below shows a comparison of the plant biomass and soil structure of restored wetlands to that of natural, undisturbed wetlands. This graph could be interpreted to answer the questions below:

The plant biomass (W) is a relation of the total weight of living plant material to its capacity of doing carbon assimilation. Biomass is the oldest source of energy, so it can be used as an energy source besides the sun. We can find those energies in any organic matter like wood, animal wastes, crops, seaweed, etc.

This question seems incomplete. The complete question is as follows:

“Scientists compared the plant biomass and soil structure of restored wetlands to that of natural, undisturbed wetlands. The graph shows their findings. Can you interpret the graph to answer these questions?”

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Darlene has heavy deposits of plaque containing cholesterol and fats collected on the walls of her main arteries. Darlene has atherosclerosis.

The accumulation of fats, cholesterol, and other substances in and on the artery walls is known as atherosclerosis. This buildup is known as plaque. Plaque can cause arteries to narrow, cutting off blood flow. Atherosclerosis is a thickening or hardening of the arteries caused by plaque buildup in the artery's inner lining. High cholesterol and triglyceride levels, high blood pressure, smoking, diabetes, obesity, physical activity, and consumption of saturated fats are all risk factors.

The symptoms vary according to which arteries are affected and how much blood flow is blocked. Coronary heart disease symptoms include chest pain (angina), cold sweats, dizziness, extreme tiredness, heart palpitations (the sensation that your heart is racing), shortness of breath, nausea, and weakness. Once atherosclerosis has begun, it cannot be reversed. However, making lifestyle changes and treating high cholesterol levels can help to prevent or slow the progression of the disease.

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The plasmids that cause R plasmids most likely acquired are bacterial conjugation by the bacterial infection. Such plasmids, termed drug-resistance (R) factors, typically additionally specify the formation of intercourse pili, filamentous appendages at the surface.

These sell bacterial conjugation, and therefore allow the switch of a duplicate of the plasmid from the resistant organism to one that may also formerly had been drug-sensitive. Antibiotic resistance genes harbored in plasmids may be without problems transferred to commensal and pathogenic micro organism via a technique called bacterial conjugation.

Through a technique referred to as conjugation, the conjugation pilus allows the bacterium to switch a duplicate of the R-plasmids to different micro organism, making them additionally more than one antibiotic resistant and capable of produce a conjugation pilus.

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Another way in which the radioactive substance; radon destroys genetic information in lung tissue cells simply by the emission of large alpha cells physically tear up the cells.

The correct answer choice is option d.

Radon is a chemical substance which usually, frequently and most of the time destroys the genetic components of substances such as the ones in the lung tissue by emitting alpha particles.

In conclusion, we can now confirm from the explanation given above that the tissue cells in the lungs of mammals can be affected by exposure to radioactive substances.

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DNA methylation would be found on this imprinted prompter ,Dna is found in every body on the earth.

DNA methylation is a heritable epigenetic mark that involves DNA methyltransferases covalently transferring a methyl group to the C-5 position of the cytosine ring of DNA (DNMTs). 1. Cytidines are methylated in plants in both symmetrical (CG or CHG) and asymmetrical (CHH, where H is A, T, or C) contexts. A chemical reaction in the body that involves the addition of a small molecule known as a methyl group to DNA, proteins, or other molecules. The addition of methyl groups can change how certain molecules behave in the body. For example, methylation of a gene's DNA sequence may turn the gene off, preventing it from producing a protein.

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Answer:Blood-borne glucose, derived from liver glycogenolysis and glyconeogenesis, as well as intra-muscular lipids and plasma free fatty acids derived from adipose tissue provide the main energy alternatives to muscle glycogen. Several amino acids, including the essential amino acid leucine, are also used directly as oxidizable fuels during exercise.

Explanation:

Test 2009

The key components required for translation are mRNA, ribosomes, and transfer RNA (tRNA). During translation, mRNA nucleotide bases are read as codons of three bases. Each codon codes for a particular amino acid.

mRNA uses its codon to read tRNA and mRNA uses a codon to match the appropriate amino acid. tRNA uses its codon to match the anticodon on the mRNA and add the appropriate amino acid.

How many amino acids will result from the translation of the given mRNA Strand?

The four nucleotides found in mRNA — A, U, G, and C — can be combined in a total of 64 different ways because codons are three-letter structures. There are 61 amino acids represented by these 64 codons, while the remaining three are stop signals that mark the conclusion of protein synthesis.

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The response is gastritis.

The union of the male and female gametes results in the formation of the zygote. To create the various embryonic stages of the progeny, the zygote goes through the process of cleavage.

The crucial process of pre-embryonic development is gastrilation. The gastrula is formed by the multiplication and rearrangement of blastula. Three germ layers, often known as triploblastic embryos, are formed during the gsatrulation process. Ectoderm, endoderm, and mesoderm are the three germ layers.

How they develop in the earliest embryonic stages is the primary distinction between protostomes and deuterostomes. The mouth opening forms initially in protostomes, followed by the anus. In deuterostomes, the mouth develops second after the anus.

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High glycogen stores and low in mitochondria-  is true of fast glycolytic fibers.

What is glycolytic fiber?

Anaerobic glycolysis, which yields less ATP per cycle, is the main method used by glycolytic fibers to make ATP. As a result, glycolytic fibers lose energy more quickly. The structural components of slow oxidative fibers maximize their capacity to produce ATP via aerobic metabolism.

Anaerobic glycolysis is the main source of ATP for fast glycolytic fibers. They have a lot of glycogen, which allows them to produce ATP quickly. These fibers have extremely few mitochondria due to their dependency on anaerobic metabolism, which results in poor oxygen availability.

Hence the correct answer is high glycogen stores and low in mitochondria.

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Small dense object formed from the remnants of a star at least three times as massive as the sun is referred to as black hole.

This is a term which is referred to as an area which is present in space where gravitational force pulls so much that even light and matter can not escape from the region. This was discovered by some scientists after the objects which were put in the area weren't seen again which led to more discoveries and analysis.

The black hole is also known to be a very big and massive area and is also said to be at least three times as big and dense as the sun as result of the enormous amount of mass is packed into a tiny volume.

This is therefore the reason why black hole was chosen as the correct choice in this scenario.

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To become a fossil, an animal must remain buried for thousands or millions of years until it (and the layer around it) turns to rock. hence option a is correct answer.

The record of life preserved in stone monuments is preserved in fossils. Nearly all living things have the ability to leave behind fossils, but typically only the tough components of plants and animals do so. Animals' muscles, skin, and soft internal organs disintegrate quickly and are rarely preserved, but their bones and shells are suitable candidates for fossilization. Soft animals like jellyfish and worms have almost no fossil records. There are several ways that fossils are created, but the majority occur when an animal or plant dies in a wet environment and is buried in mud and silt. Fast-decomposing soft tissues leave behind hard bones or shells. Sediment accumulates on top of it and forms rock over time.

The complete question is:

Why have we NOT found examples in the fossil record of every animal that ever lived on Earth? Select all that apply.

a) To become a fossil, an animal must remain buried for thousands or millions of year until t (and the layer around it) turns to rock.

b) It is just a matter of time before we find them all. Rocks contain the history of all life, if you know where to look.

c) To become a fossil, an animal must be quickly and completely buried in ash or sediment before it has a chance to decompose

d) Many fossils remain buried We can only find them when they are exposed by erosion or excavation

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Consider a scenario in which a female fruit fly has a mutation in her nanos gene that inhibits the expression of the nanos protein in any eggs she lays.

Apoptosis results in the loss of webbing. Duck embryos that have had mutant BMP4 implanted experimentally have unwebbed feet. The actions of genes under the control of genetic switches determine both the development of a single organism and the evolution of species distinctions.

The gap gene system controls the first steps of the segmentation pathway in Drosophila melanogaster and other insects. Due to its tractability, this system is important for embryo patterning and has attracted the attention of both experimentalists and computer modelers.

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d) Transcription is the name given to the process in which a strand of DNA is used as a template for the manufacture of a strand of pre-mRNA.

In the field of biology, transcription can be described as a part of the central dogma process during which information present inside a DNA segment is coded into an mRNA transcript. This mRNA that is formed as a result of transcription is called as pre-mRNA as it has to go through some alternations in order to be used for the translation process.

The strand of DNA that is being used for the process of transcription is referred to as the template strand. Each template strand produces a specific mRNA transcript through which specific proteins will be formed.

The question will correctly be written as:

hat name is given to the process in which a strand of dna is used as a template for the manufacture of a strand of pre-mrna?

a)rna processing

b) gene expression

c) polypeptide formation

d) transcription

e) translation.

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The claim that extant great apes and Miocene apes have an uninterrupted fossil record in Africa is not currently supported.

The early primates most likely descended from a small, nocturnal, insectivorous mammal. Tree shrews and colugos, sometimes known as flying lemurs, are the two species that are most similar to primates. A living illustration of early primates or primate ancestors' appearance is the tree shrew.

Like chimpanzees, we did not develop from a contemporary living primate. Our common ancestor with apes, who lived and perished in the distant past, is where we evolved and descended from. This indicates that we share ancestry with other apes.

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Answer:

A

tyler has a points card for a movie theater.

he receives 75 rewards points just for signing up.

• he earns 10.5 points for each visit to the movie theater.

he needs 180 points for a free movie ticket.

.

a

how many visits must tyler make to earn a free movie ticket?

Explanation:

Two newly identified microorganisms are acetate  and cellular carbon.

What is acetate?

Acetic acid comes in salt or ester form as acetate. The most typical component of biosynthesis, including the production of fatty acids, is acetate. A proton is taken out of the carboxy group of acetic acid to produce acetate, according to the NCI Thesaurus (NCIt).

What is glucose?

Known also as glucose, blood sugar is the main sugar found in your blood. Your body uses it as its main source of energy, and it comes from the food you eat. The glucose in your blood is used as fuel by all of the cells in your body. Diabetes symptoms include excessively high blood sugar levels.

On transferring onto the media containing acetate  one strain survives that means the strain which survives can carry out glyoxylate cycle because glyoxylate cycle allows cell to utilize  two carbon compound such as acetate  to satisfy  cellular carbon requirement as a source when simple sugars such as fructose and glucose are absent.

Therefore, two newly identified microorganisms are acetate  and cellular carbon.

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Neurexins and neuroligins have emerged as central organizing molecules for excitatory glutamatergic and inhibitory GABAergic synapses in the mammalian brain.

Functions as a cell adhesion molecule and bridges the synaptic cleft. Surprisingly, both partners can trigger the formation of hemisynapses.

Neuroligins induce presynaptic differentiation and neurexins induce postsynaptic differentiation. Recent protein interaction assays and cell culture studies demonstrate the selectivity of function conferred on either partner by alternative splicing. Insertion of β-neurexin into site 4 selectively promotes GABAergic synaptic function, whereas insertion of neurolysin-1 into site B selectively promotes glutamatergic synaptic function. Although early knockdown and knockout studies suggest that neurexins and neuroligins play important roles in synaptic transmission, particularly GABAergic synapses, assessing the in vivo function of these complex protein families needs further research.

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Her eggs yield fruit fly embryos with two heads, one of which is attached to a gene that prevents the nanos protein from being expressed in any ensuing eggs.

Apoptosis causes the destruction of webbing. Duck embryos with mutated BMP4 have non-webbed feet in an experimental setting. Genes function under the control of genetic switches to determine both an organism's growth and the evolution of species differences.

The segmentation pathway's earliest steps are regulated by the gap gene system in Drosophila melanogaster and other insects. Due to its critical role in embryo patterning, this system Interest in this field has come from both computer modelers and experimentalists due to its tractability.

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Assume that Isadora is an animal keeper in the zoo. We can tell her that her job is done at the end of the day when she already gave a proper amount of food to each of the animals, knew that every animal is in a good condition for their health, and make sure every animal is sitting in their place.

Another thing, we can also assume that Isadora is responsible for every in and out of the animal in the zoo. She has to make sure the adaptation of the animal that came are in a good condition and healthy. Especially for baby animals. Baby animals are needed extra attention for their health and activities.

Let us assume another thing, Isadora is a biologist concerned about animal reproduction and the environment in wildlife. She needs to work with other experts to help her make sure animals and the environment in that wildlife will live healthily.

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The phenotypic and genotypic ratio of the offspring will be same and it is 1:2:1.

what is incomplete dominance?

One type of intermediate inheritance in which one allele for a particular trait is not fully expressed over its paired allele is known as "incomplete dominance.

Monohybrid cross was done between the curly and straight hair of dog. Consider, pure breed of the curly hair has CC pair of alleles and that for the straight hair is cc.

Firstly, true-breeding curly (CC) and straight (cc) hair was crossed. The F1­ generation produced a wavy hair with Cc pair of alleles.

        Cc               ×         Cc

                           ║ self-pollination of F1 progeny

CC      Cc             Cc          cc

Then the F1 progeny was self-pollinated. This resulted in curly (CC), wavy (Cc) and straight (cc) flowers in the ratio of 1:2:1.

The genotypic and ratio of F2 generation in the monohybrid cross also gave the same ratio of 1:2:1.

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