which of the following statements about cardiac cycle is right ? question 7 options: a) right atrium and right ventricle contract at the same time. b) left ventricle contracts after the contraction of right ventricle. c) left and right ventricles contract at the same time. d) left atrium and left ventricle contract at the same time.

Yes this is considered as mutation.

What is mutation?

A mutation in biology is an adjustment to the sequence of nucleic acids of an organism's, virus's, or extrachromosomal DNA. DNA or RNA can be found in the viral genome. Errors in DNA replication, viral replication, mitosis, meiosis, or other types of DNA damage (such as pyrimidine dimers from exposure to ultraviolet radiation) can result in mutations, which can then result in error-prone fix (especially microhomology-mediated finished joining), error-causing repair in other forms, or error-causing replication (translesion synthesis). Due to mobile genetic elements, mutations can also result from the insertion or deletion of DNA segment.

Mismatch occurred during DNA replication completely changes the  information and same changed information is then pass to other generation and so on.

Hence, this mismatching is considered as.

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Before it opens up into full blossom, the outer green layer of a rosebud consists of the leaflike d) sepals.

Sepals are the flower's small, leaf-shaped, green petals on the outside. They are the vegetative part of a flower that protects the emerging buds and supports the petals when they are in bloom. The sepals are thought to be modified leaves.

The sepal is a defensive organ that protects and encloses the developing reproductive structures. When the flower matures, the sepal opens and the flower blooms.

Petals are modified leaves that surround a flower's reproductive parts. To attract pollinators, they are frequently brightly colored or unusually shaped. The corolla is the collective name for a flower's petals.

The stamen is a flower's pollen-producing reproductive organ. The androecium is made up of stamens. In botany, the ovary is the enlarged basal portion of the pistil, a flower's female organ. Ovules are found in the ovary and develop into seeds after fertilization.

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The primary motor cortex, which is in charge of regulating muscle motion, is located in the frontal lobe.

The back of the frontal lobe houses the primary motor cortex. The body is somatotopically shown and inverted, with the face taking up more space than the lower leg.

The central sulcus, a sizable sulcus located close to the motor cortex in the frontal lobe of the brain, is where the motor cortex is located. The central sulcus is a groove that runs between the frontal and parietal lobes of the cerebral hemispheres.

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you have added an irreversible inhibitor to a sample of enzyme and substrate. At this point, the reaction has stopped completely.

The enzyme is inactive at this point. Nothing can be done except add new enzyme. -  is the best way to get the activity of the enzyme back up.

What is enzyme inhibitor?

A molecule that binds to an enzyme and inhibits its activity is known as an enzyme inhibitor. Enzymes are proteins that quicken chemical reactions in which substrate molecules are changed into products, which are necessary for life.

An enzyme inhibitor, which prevents the enzyme from catalyzing the reaction by either adhering to the enzyme's active site or to another location on the enzyme, stops (or "inhibits") this process. Enzyme inhibitors can bind reversibly or irreversibly. The enzyme and irreversible inhibitors work together to create a chemical bond that stops the enzyme from functioning until the bond is broken.

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A geographically large form of ecology is called a biome. Numerous approaches have been developed by ecologists to categorize the biosphere into major biomes.

Based on the species that live there, a place is classified as a biome. Scientists can describe a biome by describing the temperature range, soil type, amount of light, and water that are particular to a location and provide niches for specific species.

The prominent trees in this biome are called after them because they lose their leaves in the winter. These forests may have a 20 to 30 m tall overstory and a 5 to 10 m tall understory.

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Breast milk C. provides more iron and vitamin C and A than cow's milk.

The mammary glands produce breast milk, also known as milk. This can be found in a female's breast. One of the most important sources of nutrition for newborns is breast milk. This is made up of fat, protein, and vitamins. Compared to cow's milk, breast milk contains more iron, vitamin C, and vitamin A. iron is absorbed in breast milk in comparison to other sources. Iron absorption is aided by the presence of vitamin C and lactose in breast milk.

Therefore, the correct answer is C.

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Answer:

The lack of natural predators allows invasive populations to increase very quickly.

A. White Dwarf is a remnant of low-mass star.

B. Neutron Star is a remnant of a medium-mass star.

Low-mass stars are stars that end up as White dwarfs composed of mainly Carbon and Oxygen. Higher temperatures are detected in the cores of medium-mass stars which allows fusion reactions creating oxygen, neon, sodium and magnesium.

White dwarfs only become medium mass stars when they are composed of higher mass elements. Neuron stars are burned-out cores of collapsed stars with high mass. A neuron star forms when stars of medium size reach the end of its life then explodes as a supernova.

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Vasopressin is crucial for maintaining cardiovascular homeostasis because it controls water resorption through the kidney, smooth muscle tone in the vasculature, and brainstem autonomic function as a key neurotransmitter.

What is Vasopressin?

Vasopressin is a naturally occurring hormone that helps to control a number of bodily functions.

Vasopressin maintains the proper level of water around cells in the body, allowing for optimal cellular activity.

Vasopressin controls the circadian rhythm, or the intervals between sleepiness and wakefulness within a 24-hour cycle.

The body's blood volume, internal temperature, and proper kidney urine production are all maintained by vasopressin.

Both men and women naturally produce the hormone vasopressin, but due to the way it interacts with the hormone responsible for male sex, testosterone, men are more susceptible to its effects.

The pituitary gland secretes vasopressin into the bloodstream after it is produced by nerve cells in the hypothalamus at the base of the brain.

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a)The pros of replacing zn2+ by cd2+ is that Zn metallothionein was able to efficiently compete with Cd2+, Zn2+ was restored to these proteins for the first time. When Zn2+ is exclusively coupled to Cys-thiolate in mammalian metallothionein, clusters are formed that are both kinetically labile and thermodynamically stable for the metal.

The cons of replacing zn2+ by cd2+ is Cd2+ damages kidney proximal tubule cells

b) Co and Zn can completely replace one another, with the possible exception of minor individual needs that can be satisfied

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Answer:

D. 0%

Explanation:

There should be no way for them to get color blindness since she has both alleles for normal vision. Now lets say she had one for normal and one for color blindness then there would be a 50% chance of her gametes to carry color blindness.

I hope this helps!!! :)

Food is broken down into nutrients such as carbohydrates, fats, and proteins by the digestive system.

The gastrointestinal tract, as well as the digestive organs, comprise the human digestive system. Digestion is the process of breaking down food into smaller and smaller components so that it can be absorbed and assimilated by the body.

Peristalsis is the movement of food through your GI tract. Your GI tract's huge, hollow organs include a layer of muscle that allows their walls to move. The movement forces food and liquid through your GI tract, mixing the contents of each organ.

The digestive system ingests and digests food, absorbs released nutrients, and excretes indigestible food components. Ingestion, motility, mechanical digestion, chemical digestion, absorption, and defecation are the six activities involved in this process.

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The offspring of sexually reproducing organisms has genes from both parents, in unique combinations.

What is genetic material?

The hereditary substance in the cell is the genetic material. Genetic material carries all information that is specific to an organism.

Genetic material is also known as   DNA (deoxyribonucleic acid) or RNA (ribonucleic acid).

DNA is found in the cytoplasm of prokaryotes like bacteria. DNA is found in the nucleus of the cell and sometimes in extranuclear sites like mitochondria (containing mtDNA) and chloroplast (containing cpDNA) in eukaryotes such as plants and animals.

Genetic material is responsible for controlling the organism’s composition. In the somatic cells of a multicellular organism, it is also identical.

The genetic information is passed from parent to offspring during reproduction. In sexual reproduction, the offspring gets the genetic material from both its parents.

Therefore, the offspring of sexually reproducing organisms has genes from both parents, in unique combinations.

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In a pond, there is algae bloom that doubles in size every day. if it takes 56 days for the algae to cover the entire pond, It will take 55 days to cover the half of pond with algae.

Algae are occasionally categorized as "plants" and occasionally as "protists" (a grab-bag category of generally distantly related organisms that are grouped on the basis of not being animals, plants, fungi, bacteria, or archaeans).

We know that the lake is entirely covered on day 56.

If the lily pad patch doubles every day, the day before day 56, it was covering half the lake.

If we double half a pie we have a whole pie.

It will take 55 days for the lily pad patch to cover half of the pond.

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Answer:

Messenger RNA (mRNA)

Explanation:

Hope it helps

Genetic analysis of the DNA isolated from an unknown organisms indicates that it contains the gene that codes for telomerase, the organism is Eukaryotes.

The ribonucleoprotein telomerase, also known as terminal transferase, extends the 3' end of telomeres by introducing a species-dependent telomere repeat sequence. Most eukaryotes have telomeres, which are regions of repetitive sequences, at each end of their chromosomes. Telomeres shield the chromosomal end from DNA deterioration or fusion with nearby chromosomes. Because it lacks telomerase, the fruit fly Drosophila melanogaster depends on retrotransposons to preserve its telomeres. When lengthening telomeres, a reverse transcriptase enzyme known as telomerase uses its own RNA molecule as a template (for example, in Trypanosoma brucei, utilizing the sequence 3′-CCCAAUCCC-5′). Even while telomerase is active in gametes and the majority of cancer cells, the majority of somatic cells frequently lack it or only very faintly express it. With the cloning of the RNA and catalytic components of human telomerase and the creation of the polymerase chain reaction (PCR)-based assay for telomerase activity known as the TRAP assay, which examines telomerase activity in a variety of cancers, researchers at the biotechnology company Geron established the role of telomeres and telomerase in cell aging and cancer.

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In reciprocal translocation, segments are exchanged between two non-homologous chromosomes. So, it involves one break in each of the involved chromosomes. Almost every translocations are reciprocal translocations.

In a reciprocal translocation, the four chromosomes in which the two derivative and two normal will be the outcome. This four chromosome structure known as a ‘quadrivalent’. Two of these chromosomes will pass into the gamete. Reciprocal translocations occur when a portion of one chromosome is exchanged for a portion of another. Translocations can disrupt functional parts of the genome, affecting protein production and having phenotypic consequences. Reciprocal translocations are typically balanced, so they may not have obvious functional implications.

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When a neuron is not producing an electrical signal, it is at rest. During this period, the neuron's inside is negatively correlated with its exterior.

Once the sodium channels open, the neuron totally depolarizes to a membrane potential of about +40 mV. Action potentials are referred to as "all-or-nothing" occurrences because, once the threshold potential is reached, the neuron always completely depolarizes. Most animal cells have a negative resting membrane potential because their interiors are more negatively charged than their exteriors. The resting membrane potential can only be accurately described in this way.

Na+ is drawn to the inside of dormant neurons by two different mechanisms. The high concentration of Na+ outside the cell initially pushes Na+ down the gradient of concentration into the cell. Second, the negative charge of the neuron creates an electrical gradient that tends to pull the positively charged ion within the cell.

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The study will only be approved if there is the permission of both the parents as well as the assent of the child.

In the said study, the investigator has basically proposed a study in order to tell the clinical relevance of some new technique which basically quantitates the MRD or the minimal residual disease during the therapy for the acute lymphoblastic leukemia which is seen in the case of adolescents.

Since the study basically requires that two more bone marrow aspirates which have to performed while the patient is being treated. This study can only be approved if both of the parents give their permission and also there is the assent of the child.

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Telomerase malfunction, poor telomere maintenance, and shorter telomeres are all caused by TERC gene mutations. The effects of shorter telomeres are especially harmful to cells that divide quickly.

Two distinct proteins govern the activity of the promoter, which manages the lac operon's expression. One of the proteins stops RNA polymerase from trancribing (negative control), while the other improves RNA polymerase's ability to attach to the promoter (positive control).

A missense mutation is a DNA change that leads to a different amino acid encoding at a particular location in the protein.

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A piece of dna on a chromosome that once coded for a gene but now does not and begins to accumulate mutations would be altering the normal cell functions.

DNA is a flexible and dynamic molecule. As a result, due to a process known as mutation, the nucleotide sequences found therein are liable to alter. A mutation is a change to a gene's DNA sequence. While certain mutations can be dangerous, most do not. A mutation might alter a property in a way that's even advantageous, such making it possible for an organism to more effectively adapt to its surroundings.

Normal cell replication and apoptosis rates can both be impacted by DNA damage, also known as "cellular senescence" or "programmed cell death." Alternately, harm to genetic material can cause cellular dysfunction, cell death, or the development of cancerous cells from normally healthy cells.

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The possible genotype of a long-necked, short-legged, light-spotted, meat-digesting giraffe is NnllddMM.

In giraffes, the long neck (N), long legs (L), dark spots (D) and the ability to digest meat (M) are all dominant traits. The long neck is the most dominant trait. It can be gay or straight, and always get the long neck trait. The light spots must be homogeneous. If we want to be a dominant trait, we have to be recessive to homogeneity. We can be heterosexual or homosexual here. There is a possibility of a short-necked, short-legged, dark-spotted, meat-digesting giraffe. He must be homosexual if he starts with a short neck. Homosexuals have the same trait. For the spotted, it can be either homosexual or heterosexual. The dominant trait is either dominant homosexuals or heterocyclics. If we are looking for the dominant trait to have a long, then any combination of these traits would give us that trait, and if we are looking for the big and small trait, it would always give us that trait. We would have short legs by Little L. It's a trait of two giraffes. The capital M and the light dots would give us the dominant feature of meat digestion.

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Answer:The higher the intensity of scattered light, the higher the turbidity

Explanation:

Turbidity is the measure of relative clarity of a liquid. It is an optical characteristic of water and is a measurement of the amount of light that is scattered by material in the water when a light is shined through the water sample. The higher the intensity of scattered light, the higher the turbidity

What can be considered as a milestone for the treatment of type 1 diabetes is the use of insulin hormone therapy.

Type 1 diabetes is defined as the type of metabolic disorder that occurs when the pancreatic islet cells fails to produce the hormone insulin or produces an insignificant amount of insulin.

The clinical manifestations seen in patients with type 1 diabetes include the following:

The best treatment milestone that can be used for individual with type 1 diabetes is the use of insulin hormone therapy.

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The -tax amount(s) should Mercedes report as loss on discontinued operations in its 2016 income statement is that no loss was found.

Here we will show the amount of loss :

The amount or income of loss that is described here is impaired lis and is called as impairment loss that is of $2,500,000.

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The complete question is this :

On October 28, 2016, Mercedes Company committed to a plan to sell a division that qualified as a component of the entity according to GAAP regarding discontinued operations and was properly classified as held for sale on December 31, 2016, the end of the company's fiscal year. The division's loss from operations for 2016 was $2,000,000.

The division's book value and fair value less cost to sell on December 31 were $3,000,000 and $2,500,000, respectively. What before-tax amount(s) should Mercedes report as loss on discontinued operations in its 2016 income statement?

The ventromedial tracts are important for  controlling the movement of the body's trunk ;and the dorsolateral tracts are important for carrying out important cognitive processes as memory, attention.

The ventromedial prefrontal cortex (vmPFC) is a piece of the prefrontal cortex in the mammalian mind. The ventral average prefrontal is situated in the cerebrum at the lower part of the cerebral halves of the globe and is ensnared in the handling of hazard and dread, as it is basic in the guideline of amygdala movement in people. It likewise assumes a part in the hindrance of close to home reactions, and during the time spent direction and poise.

The dorsolateral prefrontal cortex (DLPFC or DL-PFC) is a region in the prefrontal cortex of the primate mind. It is one of the most as of late inferred pieces of the human cerebrum. It goes through a delayed time of development which goes on until adulthood. The DLPFC is certainly not a physical design, but instead a useful one.

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The rank of the line-angle structures is based on the number of carbon atoms present in the longest continuous carbon chain attached in the image.

A hydrocarbon is an organic compound in organic chemistry that is only hydrogen and carbon. The majority of hydrocarbons lack color and are hydrophobic. Typically, their mild odors are compared to gasoline or lighter fluid.

In line-angle structures, carbon atoms are seen at the ends and corners of lines. It is assumed that each carbon atom has four bonds because it is attached to enough hydrogen atoms.

By counting the number of carbon atoms in each compound's branched chain, we can arrange the structures in the image attached.

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The primary immunological role of mucus in both the respiratory and digestive systems is to enhance oxygen absorption, sweep away waste, and, because it is acidic, destroy bacteria.

A watery fluid that is slick and covers mucous membranes is called mucus. It normally comes from mucous gland cells, though it can also come from mixed glands, which have both serous and mucus cells. It is a thick colloid made up of inorganic salts. an oxygen absorption. The contents of a beef packet's oxygen absorber In enclosed packaging, oxygen is removed or reduced through the addition of oxygen scavengers or oxygen absorbers. They serve as a means of preserving product safety and extending shelf life.

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Radon destroys genetic information in lung tissue cells because:

A mutation is a change that occurs in the sequence of nucleotides in a DNA molecule.

Mutations occur naturally during the process of DNA replication.

However, mutations can also occur as a result of environmental factors such as diet, chemicals, ionizing radiation as well as several other yet-to-be-understood mechanisms.

The production of ionizing radiation disrupts the sequence in a DNA molecule. An example of a molecule that causes a mutation in Radon.

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Answer:

B

Explanation:

they need to get copies of the chromosomes for the new resulting cell