Clams do not have a brain.
Clams, also known as bivalves, are a type of mollusk that has a soft body enclosed in a hard shell. They have a basic nervous system that consists of a pair of ganglia, which are clusters of nerve cells, located near the front of their body. These ganglia control basic functions such as movement and sensing the environment. However, they do not have a centralized brain or nervous system like other animals.
Clams also lack specialized sense organs such as eyes or ears. Instead, they have a pair of simple eyespots that can detect light and shadow, as well as a pair of statocysts that sense changes in orientation. They also have a pair of siphons that they use to filter water and detect food. These basic sensory structures allow clams to detect danger and respond to their environment, but they do not have the advanced processing capabilities of a brain.
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what is the function of dna helicase during dna replication?
An essential part of DNA replication is played by the enzyme helicase. Its primary role is to release the DNA double helix so that it can be reproduced.
Helicase breaks the hydrogen bonds that hold the two strands of the double helix together during DNA replication in order to unwind the helix.
A group of enzymes known as helicases is regarded to be essential for all living things. Their major job is to unravel the genetic code of a creature. Helicases are motor proteins that use the energy from ATP hydrolysis to move in one direction along a nucleic acid phosphodiester backbone, separating two hybridized nucleic acid strands (thus the name "helicase"). Numerous helicases exist to represent the wide range of processes that require strand separation to be catalysed. 1 percent or so of eukaryotic genes for helicases in code.
95 non-redundant helicases, including 64 RNA helicases and 31 DNA helicases, are encoded in the human genome.
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What determines the function of a specialized cell?
A The type of RNA in the cell
B the number of ribosomes in the cell
C the number of chromosomes in the cell
D the active genes in the cell
Option D the active genes in the cell determines the function of a specialized cell.
What is the relationship between cell specialization and gene expression?The relationship between cell specialization and gene expression is that the expression of specific genes is what enables a cell to become specialized. Cell specialization is the result of the expression of certain genes that control the development, function, and maintenance of the cell's specialized characteristics.
Therefore, with this data, we can see that gene expression in a cell will determine its specialization such as for example, a muscle cell will have a different gene expression profile than a skin cell.
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Which of these would be an effect of an excess of thyroid hormones?
The thyroid would swell and produce a goiter.
A would release less TRH.
More thyroid hormone would be produced.
B would release more TSH.
would release less TRH would be an effect of an excess of thyroid hormones. thyroid hormones controls the metabolism by transforming energy.
The hormone most in charge of regulating the rate at which your body's metabolism moves is the thyroid hormone. The development of the baby brain depends on thyroid hormone. Thyroid hormone is produced and released by your thyroid, a little gland in the shape of a butterfly that is situated at the front of your neck under your skin. Your endocrine system includes it. By sending signals through the blood to your organs, muscles, and other tissues, hormones are molecules that help your body coordinate its various tasks. Your body receives instructions from these signals on what to do and when. The two primary hormones released by your thyroid gland, thyroxine (T4) and triiodothyronine, are combined to form thyroid hormone (T3).
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What is the product of the Calvin cycle that leaves and can then form sugars *?.
The Calvin cycle uses the ATP and NADPH produced in the light reactions to produce sugar.
The Calvin cycle reactions add carbon (from atmospheric CO2) to RuBP, a simple five-carbon molecule. These reactions make use of the chemical energy generated by the light reactions, NADPH and ATP.
Two glyceraldehyde-3-phosphate (G3P) molecules, three ADP molecules, and two NADP+ molecules are the immediate products of one turn of the Calvin cycle. (ADP and NADP+ are not technically "products. They are regenerated and then reused in light-dependent reactions). Each G3P molecule has three carbons.
The Calvin cycle produces glyceraldehyde 3-phosphate (G3P). It is a three-carbon sugar that serves as the foundation for the synthesis of other carbohydrates. While some of this G3P is available for molecular synthesis and is utilized to create fructose diphosphate, some is used to regenerate the RuBP, allowing the cycle to continue.
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How has the study of mitosis affected scientists knowledge of cancer it led to a study?.
The study of mitosis has affected scientists’ knowledge of cancer. It led to a study of how to induce cancer cells to divide more rapidly.
This knowledge can be used to better comprehend centrosomes, the human cell's SPB homologue. The majority of cancer types have aberrant centrosome size or shape in cancer cells.
Since the regular "checkpoints" that control mitosis are disregarded or overturned by the cancer cell, cancer is fundamentally a mitotic illness. Cancer development starts with the conversion of a single healthy cell into a cancer cell.
During the mitotic stage of cell division, these proteins are expressed more. Thus, blocking the cell cycle during the mitotic phase may lead to an increase in immune resistance, which can aid cancer cells in fending off immunological attack.
Complete question:
How has the study of mitosis affected scientists’ knowledge of cancer?
It led to a study of how to induce cancer cells to divide more rapidly.
It led to an understanding of how cancer cells divide so rapidly.
It led to the development of contact-inhibition regulators.
It led to the discovery of how to prevent cancer cells from dividing.
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What do we call the physical expression of a genetic trait
Answer:Phenotype refers to an individual's observable traits, such as height, eye color and blood type. A person's phenotype is determined by both their genomic makeup (genotype) and environmental factors.
You see a new island forming the middle of the ocean from a volcano. You think it probably formed because...
a. It is located at a plate boundary and there is subducting plates allowing magma to come to the surface
b. It is located on a hotspot - a weak place on earth where magma comes to the surface
c. There is way too much pollution in the ocean d. Ocean currents caused this to form
it is located at a plate boundary and there is subducting plates allowing magma to come to the surface
What do you think is the difference between a scientific theory scientific hypothesis and scientific law?.
A hypothesis is a speculative explanation that can be verified by additional research. A well-researched explanation of observations is a theory. A statement that encapsulates the relationship between variables is known as a scientific law.
A regulated way of evaluating a hypothesis is an experiment. An explanation for a natural occurrence is provided by a hypothesis, which is supported by observation and testing. A hypothesis is a well-informed prediction based on specific data that serves as the basis for more research. A statement that is supported by numerous experimental findings is referred to as a scientific law. A scientific theory is the explanation for a phenomenon. Thus a theory is a set of ideas that attempt to explain something, while a hypothesis is what you believe will occur.
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Workers can be exposed to blood or other potentially infectious materials (opim) if it splashes into their _____.
In the event that blood splashes into a worker's eyes, mouth, or nose, they may become exposed to blood or other potentially infectious materials (OPIM).
A specific eye, mouth, other mucous membrane, non-intact skin, or parenteral contact with blood or other potentially infectious material is referred to as a "exposure incidence." Semen, vaginal secretions, cerebrospinal fluid, synovial fluid, pleural fluid, pericardial fluid, peritoneal fluid, amniotic fluid, saliva during dental procedures, any body fluid that is visibly contaminated with blood, and all body fluids in circumstances where it is challenging or impossible to distinguish between body fluids are all considered other potentially infectious materials (OPIM). If you are exposed, act right away as follows: With soap and water, thoroughly clean the infected area. Wash exposed skin, cuts, and needlestick wounds with soap and water.
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complete question: Workers can be exposed to blood or other potentially infectious materials
(OPIM) if it splashes into their
A. Eye
B. Nose
C. A Mouth
D. All of the above
which type of pathogen lives inside and depends entirely on the resources and energy of other cells for reproduction and growth?
Viruses are minute biological agents that enter the bodies of living hosts and multiply within their cellular organelles. The ability to proliferate requires living cells, making viruses microscopic infectious agents. To survive and multiply, they can rely on a bacterial, plant, or animal host.
Describe cellular pathogens.A disease causing agent known as a pathogen interferes with an infected organism's ability to function normally. Viruses and prions are examples of non-cellular pathogens, while parasites, protozoa, and bacteria are examples of cellular pathogens.
What are pathogens that are obligatory and facultative?Obligate parasite is a term used to describe an organism that cannot complete its life span without such host. They require hosts to survive. An organism known as a facultative parasites is one that may engage in parasitic for the duration of its life span on any host.
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An element has an atomic mass number of 16 an atomic number of seven the element has protons and neutrons 
The given atom has 7 protons and 9 neutrons, so we can draw that conclusion.
What is the atom?
(Matter is defined as anything that can be physically touched.) Aside from energy, matter makes up everything in the universe, so atoms also make up everything else.. In a typical (neutral) atom, there are an equal number of protons and electrons. Although not always, theamount of neutrons is frequently the
Characteristics that fit the environment are chosen. These characteristics persist in a population,
Three incredibly tiny types of particles—protons, neutrons, and electrons—combine to form an atom. Protons and neutrons make up the nucleus, also known as the center of the atom, and an electron cloud flies.
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Complete question:
An element has an atomic mass number of 16 and an atomic number of 7. How many protons and neutrons do they have?
What will happen to the parts of the cricket as it travels through the digestive system?.
The meal travels through the digestive system from the very beginning to the very end in its most digested state. Because of digestion, the circumstance is conceivable.
What is the first digestive system organ?Due to the amylase present in the mouth, which is responsible for the digestion of starch, the mouth is the only organ capable of producing enough digestion.
Bolus is the term for the condition where food enters the esophagus, the food pipe, via the peristalsis, where the inward and outward movement of the food pipe causes it to enter the stomach. As the food enters the mouth, it is mixed with saliva, making it easier to get broken into.
When food is mingled with digestive juices in the stomach, the process of churning occurs, which breaks down the food into its smaller components.
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which of these statements about enzyme inhibitors is true?
The action of inhibitors may be both either reversible or irreversible is trues about enzyme inhibitors.
What is enzyme inhibitors?
A chemical that binds to an enzyme and inhibits its activity is termed as an enzyme inhibitor. Proteins are referred as enzymes speed up the chemical processes that turn substrate molecules into products and are essential for life. An enzyme inhibitor is what? Inhibitors of enzyme activity are chemicals that bind to the enzyme without altering the protein structure of the enzyme.
Enzyme inhibition reactions come in three different varieties.
The inhibition of competition.Inhibitive non-competition.Inhibitive Non-Competition.To know more about enzyme inhibitors visit
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the muscles involved in the breathing process are in a relaxed state _____________ .
The muscles involved in the breathing process are in a relaxed state during exhalation. During normal, quiet breathing, the diaphragm and intercostal muscles contract during inhalation and relax during exhalation.
As the breathing diaphragm and intercostal muscles contract, they increase the volume of the thoracic cavity, which decreases the pressure inside the lungs, and air flows into the lungs to equalize the pressure. As breathing the diaphragm and intercostal muscles relax during exhalation, the volume of the thoracic cavity decreases, increasing the pressure inside the lungs, and air flows out of the lungs. During exhalation, the muscles are in a relaxed state and the lungs release the air that was taken in during inhalation. breathing process is called passive exhalation, as the muscles are not actively contracting to push the air out of the lungs, but instead the air flows out due to the elastic recoil of the lungs and the natural tendency for gases to move from areas of higher pressure to lower pressure.
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explain the significance of detritivores (decomposers) in a food chain/web.
Detritivores, also known as decomposers, play a crucial role in the food chain/web by breaking down dead plant and animal organisms material and recycling nutrients back into the ecosystem.
They consume dead organisms and their waste products, breaking them down into simpler compounds that can be reutilized by other detritivores organisms. Without detritivores, dead plant and animal material would accumulate and eventually deplete the available nutrient pool in the ecosystem Detritivores include organisms such as bacteria, fungi, and some insects, worms, and snails. These food chain are the vital link between the living and non-living components of an ecosystem, they recycle nutrients and make them available to other organisms, including plants and animals that form the base of the food chain. They also play an important role in maintaining the balance of an ecosystem.
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the formed elements of the blood are platelets, erythrocytes, and five types of leukocytes, which include eosinophils, basophils, neutrophils, monocytes and
The formed elements of the blood are platelets, erythrocytes, and five types of leukocytes, which include eosinophils, basophils, neutrophils, monocytes and Lymphocytes.
Leukocytes, commonly known as white blood cells, are a type of blood cell without haemoglobin that can move and has a nucleus. They protect the body against disease and infection by eating foreign objects and cell debris, eliminating infectious agents, and making antibodies. Organs like the spleen, liver, and kidneys control the amount of white blood cells produced by the bone marrow, which is responsible for producing them. White blood cells have a short lifespan of about one to three days, therefore our bone marrow is constantly generating more of them. The lymphatic tissues and blood both include WBC storage.
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What are the two laws that Mendel developed how are they met in meiosis?.
Gregor Mendel proposed the law of inheritance after seven years of research on pea plants. The laws of dominance, segregation, and independent assortment are among Mendel's laws of inheritance.
According to the law of segregation, each person has two alleles, but only one of them is passed on to the next generation. Mendel also tested green against yellow peas, round versus wrinkled, and other features that contrasted. He discovered that the outcomes were consistent across the board. He created the laws of Segregation and Dominance based on this. Mendel tested two qualities, each with two alleles, in a dihybrid cross.
Gametocytes (sperm and eggs) are produced during the meiotic process, which results in their having half (haploid) of each parent's DNA. According to Mendel's law of segregation, haploid gametes must partition the genes of the parents equally in order for their offspring to have an equal chance of acquiring either one or the other.
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The synthesis of complex molecules _______ energy, whereas their degradation _______ energy. The synthesis of complex molecules occurs with _______ in entropy.
The synthesis of complex molecules endergonic energy, whereas their degradation exergonic energy. The synthesis of complex molecules occurs with decreased in entropy.
Does energy need to be expended during the production of complex molecules?Keep in mind that energy is released when complex molecules are broken down by catabolic cellular pathways as opposed to when anabolic cellular pathways create complex molecules from simpler ones. It is implied that certain chemical bonds have potential energy since energy can be released when such bonds break.
What does "complex molecule synthesis" entail?Bonds that already exist are typically broken and new ones created during a chemical synthesis. In order to create a complex molecule, a large number of discrete reactions may be required, each leading in turn to the final result that is sought.
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what is another plant adaptation that helps a plant reproduce?
The another plant adaptation that helps a plant reproduce is vegetative propagation.
This is a process by which a factory can produce new shops from corridor of its living structure, similar as stems, roots, and leaves. This is an as-exual reproduction system and doesn't bear pollination or the product of seeds. Through vegetative propagation, a factory can make duplicates of itself, producing exact clones of the original factory.
This helps the species to spread to new areas and reproduce in large figures. This type of reduplication is especially useful in species that have difficulty producing feasible seeds or need to establish a large presence snappily. exemplifications of shops that use vegetative propagation include strawberries, mint, and asparagus.
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Which heart chambers and valves are labelled 1 and 2?
1 Left ventricle and left AV valve, 2 Right ventricle and right AV valve
1 Right ventricle and pulmonary valve, 2 Left ventricle and aortic valve
1 Left ventricle and aortic valve, 2 Right ventricle and pulmonary valve
1 Right ventricle and right AV valve, 2 Left ventricle and left AV valve
1 Right ventricle and aortic valve, 2 Left ventricle and pulmonary valve
The heart chambers and valves which are labelled 1 and 2 include the following below which is denoted as option B.
1. Right ventricle and pulmonary valve
2. Left ventricle and aortic valve.
What is the Heart?This is referred to as the central organ of the circulatory system and it is involved in pumping of blood around the body for adequate distribution of substances such as oxygen, nutrients etc.
The left ventricle is denoted as 2 and it has the aortic valve present in the region while the right ventricle is denoted as 1 and it contains pulmonary valve which have the various functions they perform.
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Jelly-like substance present between the cell membrane and the nucleus is a. Water b. Nucleoplasm c. Cytoplasm d. oil
Jelly-like substance present between the cell membrane and the nucleus is c. Cytoplasm.
The centriole is a cylinder-shaped structure in the cytoplasm, and the cytoplasm is the jelly-like substance that lies between the nucleus and the cell membrane.
Except for the nucleus, eukaryotic cells' cytoplasm associates with the contents of the cell. However, because prokaryotic cells lack a distinct nuclear membrane, the cytoplasm contains the cell's genetic material. In comparison to eukaryotes, cells are smaller and have a simple cytoplasmic arrangement.
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the muscles involved in the breathing process are in a relaxed state _____________ .
The muscles involved in the breathing process are in a relaxed state inspiratory rib cage muscles.
What is breathing process?
We can breathe thanks to our respiratory system and lungs. They expel carbon dioxide and inspire oxygen into our bodies, a process known as inspiration or inhalation (called expiration, or exhalation). The process of breathing involves the exchange of oxygen and carbon dioxide.
The simple movements of inhaling and exhaling are only a small portion of the intricate process of respiration, which consists of the following four steps:
Ventilation.
gas exchange in the lungs.
transport of gas.
outside gas exchange.
Air enters your lungs when you inhale (breathe), and the oxygen in that air travels to your blood. A waste gas called carbon dioxide travels from your blood to your lungs at the same time and is exhaled (breathed out). Gas exchange is a procedure that is vital to life.
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What were the important steps in Mendel's first experiments?.
There were three important steps in Mendel's first experiment: selection of true breeding varieties, hybridization, and self-pollination of these varieties.
Mendel experimented with garden pea hybridization. He investigated how seven various morphological features, such as seed colour, plant height, seed shape, etc., are passed down across generations in pea plants. Mendel chose the true-breeding variety for his parental generation tests (P generation). The kinds that produce the same feature throughout a number of subsequent generations are considered true breeding varieties. Mendel created hybrid plants by breeding many genuine breeding species.
Hybridization occurs when two people with divergent personalities are crossed. These hybrids are also known as F1 plants or F1 (first filial) generation hybrids. Mendel discovered that just one of the phenotypes present in the parental generation was expressed in the F1 plants when he examined them. Selfing or self-pollination occurs when two individuals with the same genotype cross, or reproduce, naturally. Mendel produced F2 plants in a 3:1 ratio of parental triats by growing plants from F1 seeds, cultivating them, and allowing them to self-pollinate.
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Identify the characteritic of a mixture. Chemical reaction take place
Component can be eparated by phyical method
May have uniform or non uniform compoition
Physical and chemical features of mixture are carefully evaluated, and the ones that differ most are often chosen to be exploited. Next, a method is selected to take advantage of the difference.
For either physical or chemical separation or for spectroscopic analysis, almost any difference can be exploited. There are too many to go into detail, which is why books and courses have been written and taught regarding separations.
How can you tell the characteristics of a mixture's constituent parts?The characteristics of the mixture are determined by the separate elements. Physical techniques can be used to separate the components of the mixture. According on the properties of the constituents, the mixture's melting and boiling points will vary. Energy remains constant while the mixture is forming.
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at the peripheral end of a sensory neuron, detects sensations and triggers impulses.
At the peripheral end of sensory neurons, Receptors are present and they will receive the stimulus.
Receptors are present at the end of the sensory neuron and have various types based on its stimuli. Receptors are present which detect light, sound, touch, pain etc…
The receptors of Light are called Photoreceptors, The receptors of sound Auditory Receptors,Smell are Olfactory receptors,Touch are Tactile Receptors and receptors are also associated with pain, pressure, hot, cold etc...Sensory Neurons are associated with sense organs and they carry the impulses to Brain.Sensory pathways consist of the chain of neurons, from receptor organ to cerebral cortex of brain and they are mainly responsible for senses like Sight, Hearing, Smell, taste and touch.
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How does science work to solve environmental problems? explain the steps in the scientific process as it relates to an environmental problem and describe one potential challenge to solving that problem.
There is no doubt that advances in science and technology can help in the search for solutions to the issues facing the environment today.
-In order to implement the issues, it is necessary to consider the ecological, social, and cultural policies of the environment as well as its economic viability. Creating a sustainable culture, avoiding resource extraction that harms the environment, and coming up with solutions that do not rely on the environment are some of the biggest challenges the world is currently facing.In order to address these environmental concerns, properly formulated plans must be in place to potentially produce a solution. Environmental problems require scientific reasoning and logical analysis.It is necessary to plan for the before-and after-effects on the environment, and whether the planning.To know more about environment visit:-
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Some pulmonary diseases cause an increase in dead space. Patients tend to have different breathing patterns in order to increase alveolar ventilation in order to compensate. Which breathing pattern will be more effective for increasing alveolar ventilation? High FEV/FVC ratio Increased breathing frequency Increased tidal volume
Dead space is the volume that is not participating in gas exchange and, if expanded, could impact alveolar ventilation if the delivered volume is too low.
We wanted to see if there were any variations in dead space and alveolar ventilation in ventilated infants with or without respiratory illness. In patients with COPD, Thomann and colleagues discovered that pursed-lip breathing significantly reduced respiratory rate, increased tidal volume, improved alveolar ventilation as measured by partial pressure of arterial carbon dioxide (Paco2), and improved ventilation of previously underestimated areas of the lungs.
The FEV1/FVC ratio is the ratio of the first one second's forced expiratory volume to the lungs' forced vital capacity. The normal value for this ratio is greater than 0.75-85, though this varies with age. Airflow limitation with an obstructive pattern is indicated by values less than 0.70.
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What do we know about Mendel's five-part hypothesis?.
Mendel's five part hypothesis tells about that it is an answer to a scientific question and is based mostly on prior knowledge.
The hereditary theory, developed by Mendel, explained how traits are transmitted down through generations. Mendel's theory states that a single gene has two alleles. One of these alleles is contributed by each parent, giving the offspring the appropriate trait. Mendel's theory gave an explanation for how different traits are passed down from one generation to the next through careful experimentation.
Given this, the appropriate reply is "it is an answer to a scientific enquiry and is based mostly on study."
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Complete question : : What can be known about Mendel’s five-part hypothesis, out of these four choices
- it is an answer to a scientific question and is based mostly on research
- it identifies 3 alleles for each gene
- it is an answer to a scientific question and is based mostly on prior knowledge
- it identifies 1 allele for each gene
in energy efficiency calculations where is most of the energy lost
A: to the environment, as heat
B: to the environment, as stored energy
C: to the environment, as water vapor
A: to the environment, as heat. In energy efficiency calculations, the concept of "wasted energy" refers to energy that is not effectively used for its intended purpose and is instead released into the environment as heat.
What is Energy?
Energy is a property of matter and radiation that can be transferred or converted into different forms. It is the ability of a system to do work or cause change, and is often measured in units such as joules or calories.
There are many different forms of energy, including thermal energy (heat), kinetic energy (motion), potential energy (stored energy), electrical energy, chemical energy, and nuclear energy.
This is often the result of the conversion of one form of energy to another, such as the transformation of electrical energy to thermal energy in a light bulb.
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Which bet decribe recombinant DNA?
A. DNA that ha been deactivated by enzyme. B. DNA found in organelle other than the nucleu
C. Inerted gene from one organim into another to direct it to produce a protein
D. Gene developed when an egg nucleu and a perm nucleu fue to form a zygote
Recombinant DNA is best describe by Inserted gene from one organism into another to direct it to produce a protein .
Recombinant DNA (rDNA) is the name given to DNA molecules produced using genetic recombination techniques used in laboratories, such as molecular cloning, to combine genetic material from different sources and produce sequences not normally seen in the genome.
A DNA strand that has been formed by joining two or more fragments from various sources is known as recombinant DNA. The fact that all DNA molecules have the same chemical structure and only differ in nucleotide sequence makes recombinant DNA conceivable. Because they can be created from DNA from two distinct species, much like the mythological chimaera, recombinant DNA molecules are frequently referred to as chimeric DNA. Palindromic sequences are used in rDNA technology to create sticky and blunt ends.
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