The DNA in a bacterial cell is in the ________ region which is in direct contact with the cytoplasm of the cell whereas the genetic material of a eukaryotic cell is found in the ________

Answer:

16.17 AU

Explanation:

According,to kepler's the law which states that the square of the orbital period of the planets is directly proportional to the cube of the semi major axis of the orbit of the planet.

Protein signalling reactions take milliseconds since they are already present in the cell, but gene expression reactions take hours. This occurs because both the protein and the modifying enzyme needed to change the protein are already present in the cell.

The proteins known as receptors in cells attach to signalling molecules to start a physiological reaction. Different chemicals are unique to certain receptors. Nerve growth factor receptors bind nerve growth factor, insulin receptors bind insulin, dopamine receptors bind dopamine, and so on.

The intracellular receptor is the same in many different types of cells, but the collection of genes that the receptor controls varies depending on the cell type.

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Answer:

C.Darwin used this term to describe change in organisms over time, or evolutionary change.

Explanation:its called look it up and click on the quizlet flashcards link and it will give you all the answers on the whole quiz or assignment and it will just look like you are looking at studying flashcards.

Answer:

mutualism

Explanation:

There is a mutual benefit in both parties.

The relationship between the siboglinid tube worm and the symbiotic bacteria that live in its tissues is an example of mutualism, a type of symbiotic relationship in which both organisms benefit from the interaction.

In a mutualistic relationship, both organisms benefit from their interaction with each other. This is different from parasitic or commensal relationships, where one organism benefits at the expense of the other, or where one organism benefits while the other is neither helped nor harmed. In the case of the siboglinid tube worm and the symbiotic bacteria that live in its tissues, the tube worm benefits from the bacteria's ability to oxidize hydrogen sulfide or methane, which provides the worm with a source of energy and nutrients. This is important because the tube worm has no digestive tract of its own and cannot obtain food directly from the environment.

Hence, the relationship between the siboglinid tube worm and the symbiotic bacteria that live in its tissues is an example of mutualism.

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Answer:

D. nucleotides

i'm not sure

The term "hemoglobinopathy" consists of two word parts. "Hemoglobin" and "pathy" are the two word parts that make up the term "hemoglobinopathy".

Hemoglobinopathy refers to a group of blood disorders that affect hemoglobin, which is the protein found in red blood cells that is responsible for carrying oxygen throughout the body. Sickle cell anemia is one type of hemoglobinopathy, which is caused by a genetic mutation that results in the production of abnormal hemoglobin.There are many types of hemoglobinopathy. Hemoglobinopathies are caused by genetic mutations in the hemoglobin genes. These mutations lead to either abnormal production of one or more of the globin chains or absent production of a globin chain.

Symptoms of hemoglobinopathy vary depending on the type and severity of the condition. Many people with hemoglobinopathy are asymptomatic, meaning they have no symptoms. However, some people with hemoglobinopathy may experience symptoms such as fatigue, jaundice, shortness of breath, and chest pain.

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The cactus genus which is famous to bloom at night is Epiphyllum, with the common name "climbing cacti", "orchid cacti" or "epis".

This genus is an ornamental plant that is native to Central and South America. Flowers of Epiphyllum are large, of vibrant colors with unique shapes and strong fragrances adored by botanists. Blooming in them happens later after sunset till dusk. Thus, their pollination is entomophilous which is done by insets. Pollinators are nocturnal animals, birds, and insects like bats, and moths. this nocturnal pollination supports their unique blooming by keeping consistency with the reproduction. their artificial hybrids are also present in the tribe of Hylocereeae.

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The brain consists of the cerebral cortex, limbic system, basal ganglia, thalamus, brainstem, cerebellum, and corpus callosum, which collaboratively enable cognitive processes, emotional responses, motor control, sensory perception, and information integration.

Different parts of the brain are Cerebral Cortex, Limbic System, Basal Ganglia, Thalamus, Brainstem, Cerebellum, and Corpus Callosum.

The brain is a complex organ that consists of various parts, each with its own unique functions. Here is a systematic explanation of the functional significance of different parts of the brain:

Cerebral Cortex: The cerebral cortex is the outer layer of the brain and is responsible for higher cognitive functions such as thinking, reasoning, perception, and voluntary movement. It is divided into four lobes: frontal, parietal, temporal, and occipital. Each lobe has specific roles, for example:

Frontal lobe: It is involved in decision-making, problem-solving, and motor control.

Parietal lobe: It processes sensory information, spatial awareness, and perception.

Temporal lobe: It plays a role in memory, language processing, and auditory perception.

Occipital lobe: It is primarily responsible for visual processing.

Limbic System: The limbic system is a group of structures located deep within the brain and is involved in emotion, memory, and motivation.

Key components include the hippocampus (memory formation), amygdala (emotion and fear processing), and hypothalamus (regulation of basic drives like hunger, thirst, and sexual behavior).

Basal Ganglia: The basal ganglia are a group of structures involved in motor control, procedural learning, and habit formation. They help initiate and regulate voluntary movements and are also implicated in Parkinson's disease and other movement disorders.

Thalamus: The thalamus acts as a relay station for sensory information, directing signals to the appropriate areas of the cerebral cortex for processing. It is crucial for sensory perception, attention, and consciousness.

Brainstem: The brainstem is the oldest and most primitive part of the brain, responsible for vital functions necessary for survival, including regulating heartbeat, breathing, and maintaining basic levels of consciousness. It comprises the midbrain, pons, and medulla oblongata.

Cerebellum: The cerebellum is located at the back of the brain, below the cerebral cortex. It plays a critical role in coordinating and fine-tuning motor movements, maintaining balance and posture, and motor learning.

Corpus Callosum: The corpus callosum is a bundle of nerve fibers that connects the left and right hemispheres of the brain. It facilitates communication and information exchange between the two hemispheres, enabling integration of sensory and motor functions.

It's important to note that this is a simplified overview, and each brain region interacts with others to support complex cognitive and physiological processes.

The brain's functional significance arises from the intricate connections and interactions between these various parts, allowing for the integration of information, control of bodily functions, and the basis of our cognitive abilities.

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Answer:

64 codons

Explanation:

The three-letter nature of codons means that the four nucleotides found in mRNA — A, U, G, and C — can produce a total of 64 different combinations. Of these 64 codons, 61 represent amino acids, and the remaining three represent stop signals, which trigger the end of protein synthesis.

Answer:12

Explanation:If you were to change the mRNA strand it would be:

T T T C G C T A T C G A  

The statement "each brain region receives and interprets information from all types of sensory neurons" is FALSE.

Sensory processing in the brain involves a distributed and hierarchical network of specialized regions, each responsible for processing specific sensory modalities. Different brain regions are dedicated to processing different types of sensory information.

For example, the visual cortex is specialized for processing visual stimuli, the auditory cortex for processing auditory stimuli, and the somatosensory cortex for processing touch and proprioceptive information. While there is integration and communication between these regions, individual brain regions have specialized functions and selectively process specific types of sensory input.

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Of the options provided, option D is correct. Cleavage division results in a hollow ball of cells called the morula, which is the precursor to the blastula.

During cleavage, the fertilized egg undergoes a series of rapid cell divisions without any increase in the overall size of the embryo. This results in a large number of smaller cells, each containing a smaller amount of cytoplasm than the original egg cell.

As these cells continue to divide, they form a compact ball of cells known as the morula. The cells within the morula then rearrange themselves, forming a hollow ball of cells called the blastula. The blastula contains an inner cell mass that will give rise to the embryo, as well as an outer layer of cells that will form the placenta and other supporting structures.

It is important to note that the other options provided are not accurate statements about human embryonic development. Option A is incorrect because cleavage divisions do not increase the mass of protoplasm, but rather divide the existing mass into smaller cells. Option B is incorrect because both blastomeres typically divide at the same time. Option C is incorrect because as cleavage divisions continue, the resultant blastomeres become smaller, not larger.

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Answer: 1. They’re layed down horizontally due to how they’re deposited

2. New layer form on top the last layer, therefore the bottom layers are the oldest.

3. It shows the deformation and structures.

Explanation:

I don’t know if you’ll need help now, but I went through the lesson and these are the best answers I could find.

Answer:

Yes, petals do have vascular bundles.

Explanation:

The vascular bundle is referred to as a plant's conducting vessel. The xylem and phloem make up the vascular bundle. They facilitate the transport of dissolved minerals to the stem, the storage of reserve foods, and the absorption of water and dissolved minerals. Phloem and xylem are barely separated in the vascular bundle by a few cells.

Therefore, vascular bundles are important in petals because if they were absent, they wouldn't be able to absorb water, and they would dry out. Typically, petals have three vascular traces and vascular bundles arranged in a reticulate pattern. The petals must first be cleared by soaking in 10% NaOH until semi-transparent in order to be able to see vascular bundles. Stain in safranin if the vascular bundles are still not visible.

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Answer:

✔️We often observe that cows when eat grass, after eating grass they quickly swallow them. Actually, they store that grass in their stomach called rumen. ✔️In rumen food is partially digested. ... ✔️Rumination is necessary to complete partiallly happened digestion.

Explanation:

Answer:

Salt-induced land degradation occurs in regions where there rainfall is too low to maintain of water to go into the soil.

Explanation:

Tell me if I'm right pls

Answer:

What if I have no family?

Explanation:

It’s duh truth

Answer:

True

Explanation:

Organic catalyst that increase the rate of biochemical reactions in the cells of living organism s are called enzymes.The are proteins with active sites which are specific to a particular  substrate, for enzyme-substrate complex and later enzyme product complex to formed.

They  act by lowering the activation energy  in the organic chemical reaction therefore increase the rate at which chemical reactions progress.

Hence when  the reactions are too slow,activation energy are high,because enzymes are not available to catalyze the reaction fixing the active sites with the the substrates.

Answer:

Coral snake bites can be extremely painful and can cause muscular paralysis. The coral snake's venom is one of the most potent venoms in the animal world because it contains powerful neurotoxins. The neurotoxins are responsible for the rapid paralysis and respiratory failure in the coral snake's smaller prey.

Explanation:

Answer:

Sporangium

Explanation:

A sporangium an enclosure in which spores are formed.

Transcription begins near a site in the DNA called the promoter. A promoter is a DNA sequence that enables the initiation of transcription by providing a site for the binding of RNA polymerase and its associated factors.

They are usually found upstream of the genes they regulate, and they can vary in size and sequence, but they share some common features that allow for the recruitment of RNA polymerase to the transcription start site. Promoters can be thought of as a switch that turns genes on or off. The recruitment of RNA polymerase to a promoter depends on the presence of specific transcription factors, which bind to the promoter and recruit the polymerase. There are different types of promoters, and their sequences vary depending on the type of gene they regulate and the organism they belong to. Some promoters are constitutive, meaning that they are active all the time, while others are regulated, meaning that they are activated or repressed depending on the cell's needs. The regulation of promoters is essential for the proper functioning of cells and organisms, as it allows them to respond to changes in their environment and to control gene expression.

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Answer:

I learned that Senusret was the 12 dynasty of Ancient Egypt.I also learned that he was the most powerful Pharaoh in the 12 dynasty  

Explanation:

Answer: Amino acids play a central role in cellular metabolism, and organisms need to synthesize most of them (Figure 1). Many of us become familiar with amino acids when we first learn about translation, the synthesis of protein from the nucleic acid code in mRNA. To date, scientists have discovered more than five hundred amino acids in nature, but only twenty-two participate in translation.

Explanation: i don't know :D

Examples of interspecific competition include the fight for food between Argentine ants and other ant species.

Sharks and orcas compete with one another to hunt seals.

Interspecific competition is a sort of conflict involving two or more species, whereas intraspecific competition is a conflict involving several members of the same species. Therefore; instances of intra-specific competitions -

Rams competing for access to mates

Salamanders compete with one another for food sources.

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An individual with sedentary lifestyle might be at risk for hypokinetic diseases such as high blood pressure. Moderate physical activity such as walking and biking gives a great benefit to avoid such risk. Moderate physical activity can reduce major medical conditions that might lead to early death. Too little movement or activity might lead to hypokinetic diseases. Regardless of the intensity of the physical activity, it will lower the risk of an early death due to hypokinetic diseases.

The type of scientist best qualified to perform genetic engineering to produce more productive seeds in agriculture would be a molecular biologist, the correct option is C.

Molecular biologists specialize in studying the structure, function, and interactions of molecules within biological systems, including DNA and genes. Genetic engineering involves manipulating the genetic material of organisms, which requires a deep understanding of molecular biology principles.

Molecular biologists have the expertise to identify and isolate specific genes responsible for desired traits in crop plants, such as increased productivity or resistance to pests or diseases. They can then modify or introduce these genes into target plants to achieve the desired outcomes, the correct option is C.

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Structure of a virus

Explanation:

At the center of all viruses the DNA or RNA is found enclosed by the capsid. The Capsid is a capsomere (type of protein) coat that is designed to protect the DNA or RNA.

The capsomere contains genes that allow the virus to transfer its nucleic acid into the host cell.

Answer:

The tectonic plates are always slowly moving, but they get stuck at their edges due to friction. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel.

Explanation:

Type 1 diabetes (insulin-dependent or juvenile) is sometimes called "starvation in the midst of plenty" because, despite high levels of glucose in the blood, the cells of the body cannot take up and use glucose for energy because there is no insulin or insufficient insulin production from the pancreas.

This results in a feeling of starvation because cells are not getting enough energy to function, despite the presence of plenty of glucose in the bloodstream. Diabetes has effects on glycolysis, glycogen, and gluconeogenesis as follows:

Glycolysis: The metabolism of glucose to pyruvate during glycolysis is unaffected in people with type 1 diabetes because the enzymes that catalyze this process are present in cells and do not require insulin activation. As a result, glucose is metabolized to pyruvate, which is converted to lactate under anaerobic conditions or enters the TCA cycle under aerobic conditions to generate energy.

Glycogen: When insulin is present, it signals the liver and muscle cells to store excess glucose as glycogen for later use. When insulin is not present, such as in type 1 diabetes, glucose cannot be stored as glycogen, so the liver breaks down glycogen to glucose and releases it into the bloodstream.

Gluconeogenesis: In the absence of insulin, the liver increases the rate of gluconeogenesis, which is the production of glucose from non-carbohydrate sources such as amino acids and fatty acids. This leads to an increase in blood glucose levels because the liver is releasing more glucose into the bloodstream, exacerbating the symptoms of diabetes.

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