What did Rosalind Franklin contribute to the field of science and how did here work impact society?

The bacteria that ferment milk lactose, producing acids that curdle milk are lactic acid bacteria (LAB).

Lactic acid bacteria are bacteria that responsible for the fermentation of lactose, which is the primary sugar found in milk. The most common lactic acid bacteria used in the fermentation of milk are Lactococcus lactis and Lactobacillus bulgaricus. These bacteria convert the lactose in milk into lactic acid, which causes the milk to curdle and form yogurt or cheese.

Other lactic acid bacteria that can be used in the fermentation of milk include Streptococcus thermophilus and Lactobacillus acidophilus. These bacteria are also used in the production of fermented milk products such as kefir and sour cream. In summary, lactic acid bacteria (LAB), including Lactococcus lactis, Lactobacillus bulgaricus, Streptococcus thermophilus, and Lactobacillus acidophilus, are responsible for the fermentation of milk lactose, producing acids that curdle milk.

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One other use of CRISPR technology, besides gene editing, is the detection of specific DNA sequences in a sample.

CRISPR-based diagnostics work by using the Cas (CRISPR-associated) protein as a programmable search engine that recognizes and binds to a specific DNA or RNA sequence of interest, which is then cleaved or "cut" by the Cas protein.

When this process is combined with a reporter molecule, such as a fluorescent or colorimetric signal, it can provide a visual readout of the presence or absence of the target sequence in the sample. This technology has the potential to be used for the rapid and sensitive detection of a wide range of pathogens, including viruses and bacteria.

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The main component of the herbicide ROUND-UP is glyphosate. Amino acids are a common biological substance that glyphosate resembles.

Glyphosate is a synthetic herbicide that was first introduced in the 1970s. It is the active ingredient in many herbicide products, including the popular brand name herbicide Roundup. Glyphosate is used to control the growth of unwanted plants, such as weeds, and is widely used in agriculture, forestry, and gardening. Glyphosate works by inhibiting the activity of the enzyme 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) in plants. EPSPS is involved in the shikimate pathway, which is a metabolic pathway that is essential for the biosynthesis of certain amino acids and other aromatic compounds in plants. By inhibiting EPSPS, glyphosate blocks the production of these compounds, which leads to the death of the plant.

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chromosome and chromatid are the not same thing its false. A chromatid is one of the two identical halves of a chromosome that has been replicated in preparation for cell division. The two “sister” chromatids are joined at a constricted region of the chromosome called the centromere.

Chromatid Replication of cells is crucial for growth and for replacing damaged cells that cannot be repaired. The cells that are present when you acquire a cut on your skin and the cut heals are a good illustration of this. The old cells' exact replicas are present in the new cells. Your chromosomes, which contain the genetic material that determines who you are, must be replicated and sent to each of the new cells as part of cell replication. These chromosome copies, called chromatids, are connected by a unique structure that permits their meticulous division into new daughter cells while preserving the proper amount of chromosomes in each cell.

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The incorrect statement about kingdom Alveolata is: (a) Some members of this kingdom are decomposers, showing ecological convergence with the fungi.

Kingdom Alveolata comprises of the organisms which are eukaryotic. They are characterized by the presence of cortical alveoli, mitochondria with tubular cristae and the organisms may be free-living or parasitic. Their mode of nutrition is majorly autotrophic although some heterotrophic organisms are also present.

Decomposers are the organisms which feed upon the organic material by the breaking down of dead organisms. These organisms are also known by the name detritivores. The examples are: fungi, insects, earthworms, and some bacteria.

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A. Extracellular bone matrix is not one of the four main tissue categories.

Main types of tissues presents are connective tissue, epithelial tissue, muscle tissue, and nervous tissue. Connective tissue helps in supporting other tissues by binding with each other together. While Epithelial tissue helps in providing a covering to skin, and the  linings of the various passages inside the body.

Hence , connective tissue hidden inside an epithelium. That also contains a variety of cells with an extracellular matrix components. Also the predominant cell type is the fibroblast, that is abundant in extracellular matrix.

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The correct answer is option B: Malted sorghum is a grist component that is sometimes used because it is gluten-free.

A grist called malted sorghum is often used as a gluten-free substitute for wheat in grist components. Natural gluten-free and rich in nutritional fibre and antioxidants, sorghum is a cereal grain. Iron, magnesium, and other minerals are abundant in it.

Vitamins B1, B2, and B6 are also abundant in it. It is the perfect choice for anyone with gluten allergies or sensitivities because of its gluten-free status. Sorghum is a popular ingredient for craft brewers since it gives beer a distinctive taste.

Moreover, it is less likely to oxidise than other grains, preserving the beer's quality. Malted sorghum as a gluten-free alternative in grist components has grown in popularity in recent years as more individuals seek gluten-free choices in their diets.

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Megasporangia are distinct from microsporangia in that they generate spores that become female gametophytes while microsporangia generate spores that become male gametophytes.

The majority of vascular seedless plant species are homosporous: Like the majority of ferns, they only have one type of sporangium that produces one type of spore, which typically transforms into a bisexual gametophyte. A heterosporous species, on the other hand, produces both megasporangia and microsporangia, two different types of spores.

The majority of vascular plants with seeds and all seed plants are heterosporous, meaning they have both megasporangia and microsporangia.

Microsporangia and megasporangia are distinct structures that do not interbreed.

In comparison to the microspores produced by microsporangia, the megaspores produced by megasporangia are comparatively larger but not more numerous.

Sporopollenin shields all plant spores.

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The above question is incomplete. Check complete question below -

In what way do megasporangia differ from microsporangia?

A. megasporangia develop female spores and microsprongia develop male spores.

B. megasporangia develop male spores and microsprongia develop female spores.

C. megasporangia produce microspore and microsprongia  develop megaspore

D. They are both the same

The bacterial growth curve represents the number of live cells in a bacterial population over a period of time. There are four distinct phases of the growth curve: lag, exponential (log), stationary, and death.

The initial phase is the lag phase where bacteria are metabolically active but not dividing. The exponential or log phase is a time of exponential growth.

In the stationary phase, growth reaches a plateau as the number of dying cells equals the number of dividing cells. The death phase is characterized by an exponential decrease in the number of living cells.

For growth, bacteria need specific conditions, and not all bacteria require the same conditions. Microbial development is influenced by elements such as oxygen, pH, temperature, and light.

Therefore, The bacterial growth curve represents the number of live cells in a bacterial population over a period of time. There are four distinct phases of the growth curve: lag, exponential (log), stationary, and death.

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Domains are larger than kingdoms and contain more organisms as far as taxonomy of organisms is concerned.

The three domains are Archaea, Bacteria, and Eukaryotes. Prokaryotes belong to either the archaeal or bacterial domains. Organisms with eukaryotic cells belong to the eukaryotic domain

"Humans belong to the eukaryotic domain. That's because humans have a nuclear membrane, and they also have membrane-bound organelles. ”

In all three domains the genetic material is DNA. Their cellular metabolism is based on a proton gradient that drives ATP synthesis (using the same protein system, ATP synthase). They all have phospholipid-based membranes and use protein catalysts (enzymes) to speed up metabolic processes.  

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a tube that carries air from the larynx to the lungs is called trachea.

The windpipe, sometimes referred to as the larynx or voice box, is joined to the bronchi of the lungs by an organ called the trachea, which is fashioned like a tube. Air can travel through it and into the lungs, making it a crucial component of the respiratory system. To give structural support and keep the trachea from collapsing during inhalation, the trachea is built up of cartilage rings. Cilia aid to capture and remove any foreign objects or mucus from the trachea's inner lining by covering it. When air moves across the vocal cords in the larynx, it is the trachea that causes sound to be produced.

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True. Nutrients are essential chemical substances that must be consumed by organisms for normal cellular metabolism and growth.

They are required in varying amounts by different organisms and play important roles in maintaining the structure and function of cells and tissues. There are six main classes of nutrients that are essential for human health, including carbohydrates, proteins, fats, vitamins, minerals, and water. These nutrients are obtained through a balanced diet that includes a variety of different foods from different food groups. In addition, many organisms, including humans, are not able to synthesize certain nutrients and must obtain them from the diet.

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Musk oxen have sharp horns and will use them while charging at enemies.

What are musk oxen?

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Increased photosynthesis is not correct.

Increased ozone concentration in the troposphere can lead to several negative effects, including reduced plant growth, increased respiratory problems, and global warming. Ozone is a strong oxidizing agent that can damage plant tissues, and prolonged exposure to high levels of ozone can reduce plant growth and crop yields.

Ozone can also cause respiratory problems in humans and animals, particularly those with pre-existing respiratory conditions such as asthma. In addition, ozone is a potent greenhouse gas that can contribute to global warming and climate change. However, increased ozone concentration in the troposphere is not expected to increase photosynthesis, as high levels of ozone can damage plant tissues and reduce the efficiency of photosynthesis.

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A cell that has two copies of each chromosome, one from an egg and one from sperm, is known as a diploid cell.

In most sexually reproducing organisms, including humans, the process of fertilization involves the fusion of a haploid sperm cell and a haploid egg cell, resulting in the formation of a diploid zygote. The zygote then undergoes mitosis, a process of cell division that results in the formation of new cells, each with the same number of chromosomes as the original cell.

In diploid cells, the two copies of each chromosome are referred to as homologous chromosomes. One homologous chromosome is inherited from the individual's mother, and the other is inherited from the father. This provides genetic diversity and variability in the offspring.

Diploid cells are found in most somatic cells of the body, with the exception of a few specialized cells, such as gametes (sperm and egg cells), which are haploid. In summary, a cell that has two copies of each chromosome, one from an egg and one from sperm, is known as a diploid cell.

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Genetic variation: Seeds from the same species of plant may differ in how they react to external stimuli like a dose of a particular drug due to genetic variance.

It is not necessary to plant all of the seeds in a packet if only a few plants are required. Frequently, extra seed can be stored for a future planting. It is ideal to keep seed in a closed container at room temperature, dry, and cool.

It guarantees the veracity of seed labelling information and advertising. Additionally, it encourages uniformity in state laws and fair competition in the seed industry. Crop stand, yield, and total value are all dependent on seed quality.

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The easiest way to characterize budding is as asexual reproduction that produces genetically identical offspring.

A type of asexual reproduction in which offspring develop from the parent organism's reproductive system. Although some species have buds practically everywhere on their bodies, buds frequently only appear in certain places. In yeast, budding typically happens when there is a plentiful supply of nutrients. As the mother grows, this reproductive process results in tiny shoots. The parent yeast nucleus then divides into two, one of which moves into the bud. Yeast often reproduces asexually through a process known as budding. On the parent cell, a little button or bud develops, matures, and finally divides into a new yeast cell. Genetically speaking, the parent cell and this new yeast cell are identical.

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From childhood to maturity, the heritability of intelligence is largely consistent, which means that genetic factors continue to be a major factor in determining individual differences in intelligence.

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The tibialis posterior muscle performs two functions: plantarflexion and foot inversion. It is a deep muscle in the back of the leg.

The gastrocnemius, soleus, and plantaris muscles are the major plantar flexors of the foot, and their tendons converge to create the tendo calcaneus or Achilles' tendon. At the hip joint, the sartorius flexes, abducts, and laterally rotates the thigh. It also helps with knee flexion and medial rotation of the leg in this posture. The sartorius is a long band-like muscle that spans lateral to medial across the front of the leg.

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Answer:

When using the high power objective in a microscope, you should not adjust the coarse focus knob. The coarse focus knob is used to make large adjustments to the focus and is typically used when switching between objectives with different magnifications. When using the high power objective, small adjustments to the focus are made using the fine focus knob, which allows for precise control. Adjusting the coarse focus knob while using the high power objective can cause the specimen to be damaged or the objectives to become misaligned, resulting in poor image quality.

Explanation:

Target cell: this cell possesses a receptor capable of ligand binding. The ligand attaches to the receptor, activating a series of internal signaling events that cause the cell to react.

The smallest unit of any substance that is made up of one or more elements and has the ability to exist on its own while keeping all of the substance's physical and chemical properties is called a molecule. Within molecules, more atom division takes place. An example of the smallest part of a substance that retains both its chemical and physical properties is the oxygen atom, which is represented by the letters O, and the oxygen molecule, which is represented by the letters O2 Molecules are made up of one or more atoms.

Water is just a molecule due to its molecular bonding. Because it contains numerous distinct types of elements, water is also a compound (oxygen and hydrogen). If you choose, you might state that water is just a molecular compound. Its molecules have had the chemical formula H2O and are composed of two hydrogen atoms bound together by covalent bonds. The hydrogen atoms are connected to the oxygen atom at a 104.45° angle.

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False, according to the statement. Vasoconstriction is a result of increased sympathetic activation; this raises blood pressure.

Vasoconstriction—the narrowing of blood vessels—can be brought on by sympathetic activation of blood vessels. The release of hormones that induce the smooth muscles of the blood arteries to contract, including adrenaline and norepinephrine, may be the reason for this. Consequently, the blood supply to some parts of the body is reduced and blood pressure rises. A number of medical illnesses can be treated with sympathetic stimulation, including respiratory disorders, some mental health conditions, bladder and intestinal disorders, pain management, and heart conditions such arrhythmias or irregular heart rhythms. It is also used to assist regulate breathing, increase energy, lower anxiety, and improve performance.

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It is true that throughout infancy, growth surges can happen all in one day and can alternate with extended periods of little to no growth for days or weeks.

The first stage of life is infanthood, which lasts from birth until age two. Infants learn and develop at a startlingly fast rate throughout this period of rapid development. Babies can express their basic needs, regulate their physiological movements, recognise and respond to the people and objects around them, and form emotional bonds with those who are responsible for taking care of them. Babies also start to communicate with others, use language, and explore their surroundings. Infants require a nurturing environment at this time to meet their requirements on the physical, emotional, and cognitive levels. Parents can assist their children by paying attention to their needs, participating in playtime activities with them, and offering consolation, love, and affection.

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The fluid produced into the pericardial cavity by the pericardium's serous layer is known as pericardial fluid. An exterior fibrous layer and an inner serous layer make up the pericardium. Thus, option B is correct.

A clear to pale yellow liquid that is present throughout the body, especially in the spaces between organs and the membranes that surround or line them.

Such as the heart and pericardium or the abdomen and peritoneum, and that, when present in significant amounts, is a sign of a pathological condition.

A pericardial effusion's pressure may cause the heart's rhythm to change. In severe circumstances, it could result in mortality if left untreated and cause heart failure.

Therefore, the space between the parietal layer and visceral layer of the pericardium contains film of serous fluid.

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Yes it is true, In reality, the coffee bean is the seed of a cherry fruit. The fruit has two beans in the core, mucilage, parchment skin, silver skin, and an outer skin. The cherry is ready for harvesting when it becomes a deep red color. After that, they are dried, processed, and transported.

Since the coffee bean is the seed, it can be utilised to plant additional coffee trees if it is not dried and processed. Until they are ready to be permanently planted, seeds are often sown in shady nurseries and are frequently watered. The majority of plants are gathered by hand, however in other locations, like Brazil, where the terrain is largely flat, machinery may be utilised. There are two methods for picking cherries. They could be "strip picked," in which case all the cherries, regardless of how ripe they are, are removed from the tree. Alternatively, cherries can be chosen carefully so that only the ripest fruit is taken. A skilled cherry picker may often produce between 100 and 200 pounds of cherries per day, or 20 cherries.

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The combining form that refers to the anatomic structure defined as spongelike organ consisting of lobes and located in the thoracic cavity is pulmono.

Explain  thoracic cavity.

The heart, lungs, esophagus, thymus, sympathetic trunk, and the major vessels are all located within the hollow thoracic cavity, which is enclosed by the rib cage and the diaphragm. It has three compartments: the mediastinum, two pleural cavities, and.

A word used to express how effectively the lungs aid in breathing. During breathing, oxygen is drawn into the lungs, where it is transported to the body's tissues by the blood. The body's waste product, carbon dioxide, is transported to the lungs where it is exhaled.

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Yes, the rat liver supernatant contains enzymes that convert substance X to a mutagen, and his+ revertant occur.

The Ames test is a popular method for detecting if a certain chemical may cause mutations in the test organism's DNA. It is a biological experiment performed to examine chemical compounds' mutagenesis potential.

The Ames test employs different strains of the bacterium Salmonella typhimurium that have mutations in histidine synthase genes. These strains are auxotrophic mutants, which means they need histidine to thrive but can't make it.

The approach assesses the tested substance's potential to induce mutations that result in a return to a "prototrophic" state, allowing the cells to thrive on a histidine-free media.

Larger creatures, such as mammals, contain metabolic mechanisms that might possibly convert a chemical that is not mutagenic into one that is, or a chemical that is mutagenic into one that is not.

To more successfully assess a chemical compound's mutagenicity in relation to bigger species, rat liver enzymes can be introduced in an attempt to reproduce the Ames Test's effect on the substance being studied.

Optionally, rat liver extract is added to replicate the impact of metabolism, as some chemicals, such as benzo[a]pyrene, are not carcinogenic in and of themselves, but their metabolic products are. On an agar plate, the bacteria are distributed with a little quantity of histidine.

This modest quantity of histidine in the growing medium permits the bacteria to thrive and mutate for an initial period of time.

When histidine is reduced, only bacteria that have evolved to make their own histidine will survive. For 48 hours, the dish is incubated. A substance's mutagenicity is proportional to the number of colonies seen.

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The cell type is involved in the initiation of head and neck cancer is : A. Squamous cells.

Cancers that are known as head and neck cancers begin in squamous cells that line mucosal surfaces of the head and neck. These cancers are referred as squamous cell carcinomas of head and neck.

About 8 out of 10 skin cancers are basal cell carcinomas and are also called basal cell cancers. These cancers start in basal cell layer, which is the lower part of epidermis and these cancers usually develop on sun-exposed areas, especially face, head, and neck.

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Muscles are not likely to tear from their bones because perforating fibers of collagen attach the tendon and periosteum to the cortical surface of the bone. Option C is correct.

Muscles are unlikely to separate from their bones because collagen-perforating fibers hold the tendon and periosteum to the cortical surface of the bone. Tendons are strong, fibrous connective tissues that connect muscles to bones and are designed to withstand the strain and stress caused by muscular contractions. The highly ordered collagen fiber arrangement that makes up tendons gives them strength and stability. The periosteum, the hard connective tissue that covers the surface of bones, is punctured by bundles of collagen fibers known as perforating fibers. These fibers bind the muscle to the bone, forming a strong, tear-resistant link, and connect the tendon to the cortical surface of the bone.

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False, The cell membrane's phospholipid bilayer is a hard structure that prevents specific phospholipids and proteins from moving laterally.

Important membrane lipids known as phospholipids are composed of lipid bilayers. More crucially, this fundamental cellular structure makes it possible for several cellular functions to take place in subcellular compartments while also acting as a barrier to guard the cell against different environmental insults.

Esters of sucrose, fatty acids, phosphate, and other alcohols make up phospholipids. Macromolecule, phosphatidylcholine, phosphatidylinositol, and phosphatidylserine are the four most prevalent phospholipids.

Component of cell membranes, phosphatidylserine, phosphatidylserine, and sphingomyelin are the four primary phospholipids that prevail in the cell surface of many mammalian cells.

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