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4878 private teachers in Lrmhy

هانى - New Cairo3Fr
3FrNucleic Acids and Gene Expression in Living Organisms
Nucleic acids are essential biomolecules that store and transmit genetic information. They play a crucial role in all living organisms’ growth, development, and functioning. The two nucleic acid types are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), and they both have nucleotides as their building blocks. What Are Nucleic Acids? Nucleic acids are complex, naturally occurring biomolecules that hold an organism’s genetic information. They transmit hereditary traits from parents to offspring. Living organisms also need nucleic acids to direct their growth and development. Nucleic acids enable protein synthesis, which is responsible for overall cell structure and function and entails cells creating protein from amino acids. What Are the Building Blocks of Nucleic Acids? They consist of numerous nucleotides chained together. Each nucleotide contains: A sugar molecule: In DNA, this is deoxyribose, while in RNA, it’s ribose. A phosphate group: A phosphorus atom bonded to four oxygen atoms. One of four organic bases: Adenine (A), Thymine(T) in DNA or Uracil(U) in RNA, Guanine (G), and Cytosine(C). All these bases are nitrogenous. The sequence of these four nitrogenous bases, along with the sugar and phosphate, forms a nucleic acid chain. The chain contains the instructions for an organism’s survival and functioning. What Are Nucleic Acids Responsible For? Nucleic acids are crucial for all living organisms as they carry the genetic code necessary for life. Doctors and scientists use nucleic acids to study, diagnose, and treat various genetic disorders. For example, DNA testing can identify inherited diseases or determine paternity. Nucleic acids also play a significant role in protein synthesis. As mentioned earlier, proteins are essential for cell structure and function. They control nearly all cellular processes, including metabolism, respiration, growth, and immune responses. Without the instructions provided by nucleic acids, proteins would not be produced, and life as we know it would not exist. Additionally, nucleic acids have a critical role in cell signaling. They regulate gene expression, which involves turning genes on and off to control cellular functions. It allows cells to respond to their environment and maintain homeostasis. What’s the Importance of Nucleotide Sequence? Did you know that the pattern and sequence that nucleotides follow when forming a nucleic acid affects its function? Each combination of the four nitrogenous bases (A, T/U, G, and C) creates a unique genetic code that determines the production of specific proteins. Even small changes in the sequence can significantly affect an organism’s traits or health. For example, a single mutation in the DNA sequence can lead to genetic disorders like cystic fibrosis or sickle cell anemia. Moreover, studying the nucleotide sequence of different organisms allows scientists to understand their evolutionary relationships and track changes over time. Nucleic acids are also essential in biotechnology. Scientists can manipulate and insert specific sequences of nucleotides into organisms to produce desired proteins or alter their genetic makeup. For example, Advanced ChemTech specializes in peptide production. We’re behind a treasure trove of novel essentials like shielded amino acids, coupling reagents, fancy linkers, and resins. Our stash also includes rare amino acids and top-notch building blocks! The principles of nucleotide sequencing inform many of our products, allowing us to create custom peptides for any commercial application. Our team of experts can synthesize, purify, and analyze peptide sequences with precision and efficiency. Additionally, nucleic acids are useful in genetic engineering and gene therapy. It’s possible to manipulate their nucleotide sequences and transfer specific genes. Gene transfers help to treat genetic disorders or produce desirable proteins. What Are the Two Types of Nucleic Acids? As already mentioned, DNA and RNA are the two nucleic acid types. These two molecules differ in structure and function, but they share a common purpose: to store and transmit genetic information. DNA (deoxyribonucleic acid) is typically a double-stranded molecule that stores hereditary information in all living organisms. It contains four nitrogenous bases; Adenine (A). Guanine (G). Cytosine (C). Thymine(T). You can have one of the four organic bases pairing up and forming the rungs of the DNA ladder. The sequence of these bases determines an organism’s genetic traits. RNA (ribonucleic acid), on the other hand, is a nucleic acid monomer. It’s generally single-stranded and consists of three main types Messenger RNA (mRNA) carries genetic information from DNA to ribosomes for protein synthesis. Ribosomal RNA (rRNA) forms part of the ribosome structure and helps translate mRNA into proteins. Transfer RNA (tRNA): During protein synthesis, these nucleic acids use their anticodon sequence to match the codon sequence on mRNA and transfer amino acids to the ribosome. These three RNA types work together to read and translate the genetic code stored in DNA into proteins, a process crucial for an organism’s survival and development. DNA vs. RNA While both are composed of nucleotides, DNA entails a double helix structure and two complementary strands, but RNA is a single-stranded monomer. Another notable difference is the type of sugar present in each molecule. DNA contains deoxyribose sugar, while RNA contains ribose sugar. This slight difference in sugars also affects the stability and longevity of the two types of nucleic acids. DNA is known for its exceptional stability, which makes it suitable for storing genetic information. On the other hand, RNA is less stable and more prone to mutations, making it better suited for carrying out short-term functions in protein synthesis. Gene Expression Gene expression entails coping or transcribing the genetic information in DNA into RNA. It enables organisms to produce essential proteins for growth and development. Genetic engineering involves manipulating an organism’s DNA to express specific traits. Scientists use techniques like gene transfer to introduce foreign genes into an organism’s genome and alter its genetic makeup. Final Thoughts on the Structure and Function of Nucleic Acids In summary, nucleic acids are essential to all living organisms and are responsible for storing and transmitting genetic information. Composed of nucleotides, DNA and RNA have distinct structures and functions in the cell. DNA serves as the blueprint for making proteins, while RNA plays an active role in protein synthesis. With advancements in genetic engineering, our understanding of these molecules and their functions continues to grow. Studying nucleic acid molecules can help us gain insights into genetic disorders and develop potential treatments. That’s why you need to know the difference between nucleic acids and amino acids.
Biology · Genetic engineering
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Biruk - Addis Ababa12Fr
12FrAny subject From Grade 1- grade 10, Programming language and web development
Trusted teacher: I provide personalized tutoring services for students in grades 1-10, focusing on enhancing their understanding of core subjects like Mathematics, Science, and English. My approach emphasizes building a strong foundation in each subject, fostering critical thinking, and developing problem-solving skills. I tailor my lessons to meet the unique needs of each student, ensuring they grasp key concepts and excel academically. With a commitment to nurturing confidence and curiosity, I aim to create a supportive learning environment that motivates students to achieve their full potential. As a web developer, I specialize in creating responsive, user-friendly websites tailored to meet the needs of businesses and individuals. I have expertise in various web technologies, including HTML, CSS, PHP, Laravel, WordPress, and Bootstrap, allowing me to design and develop custom solutions that align with the latest industry standards. From company profiles to e-commerce platforms, I am dedicated to delivering high-quality, visually appealing, and functional websites that enhance user experience and drive engagement. In the field of computer programming, I bring a wealth of experience in developing software solutions that address specific business needs. I am proficient in several programming languages, including PHP, JavaScript, and Python, and have a strong background in both front-end and back-end development. My programming services range from creating robust web applications to automating complex processes, always focusing on efficiency, scalability, and maintainability. My goal is to provide innovative programming solutions that streamline operations and deliver tangible results.
Tutoring · Web development · Computer programming
Inaya - Dammam52Fr
52FrExperienced Tution Teacher in Dammam with internation school experience.
Trusted teacher: All syllabus ( CBSE, IGCSE, AMERICAN, etc......) CBSE - ( KG to 10th ) IGCSE BRITISH - ( KG to GRADE 10) AMERICAN - ( KG to GRADE 10) EDEXCEL-PEARSON All subjects ( Mathematics, English,GK,Science & also Hindi) Students who are on "Visit Visa" can also join to continue their studies. Open school students can join to gain knowledge. Students can join for urdu classes too. Make your child learn during Summer coaching classes The student seeking "Admission" into school can also join to get prepared for an admission test. Students from nearby areas (Mazroieyah, Tubaishi, Ar-Rabi, Adama, Amamrah, Al-Badi, and Shatii ) can join for classes. TEACHER'S EXPERIENCE: Teaching in international school for more than 7 years to different grades including 9th, 10th TEACHING METHOD: # One on one attention to each student. # Identifying the problem and turning to positive thoughts. # Building confidence and helping them overcome their insecurities by encouragement, motivation and exam techniques. # Monthly assessments and evaluations. # Past paper practice before exams. # Assisting in homework. # Handwriting practice & improves writing skills # Crash course facility is also available. Playtime / Fun time / Toy room for play, after a child completes his / her daily work. Timings: Morning classes from 8:00 to 11:00 & Evening classes will be in sessions from 5:00 PM - 8:00PM (boys & girls), you can choose your timings (any 1 hours).May peace be upon you!
Science · English · Math
Zynab - Dubai66Fr
66FrABA Therapy, Special Education Teacher, Behavior Intervention, All Subject Teacher
Trusted teacher: Children are often as diverse in their needs, abilities, and challenges as adults. You often see the more severe challenges, such as high level autism, severe ADHD, or other challenges of similar merit, but the lower level challenges are often left unseen. A child can be selective in their communication and it causes delays in their learning, or they may become overwhelmed by sounds or demands or even lights and just need help learning how to navigate their learning despite those triggers. As someone who have worked with children of various support needs, I ensure that your child will be in safe hands. I focus on helping them cope with stresses, and acquire new skills they previously found difficult by breaking them down and making them easier to learn, and by advocating for their needs and teaching them how to advocate for themselves. Some of the teachable skills include: learning how to ask for things, labeling things (nouns, actions, prepositions, etc.), fine and gross motor skills, answering questions, describing pictures, learning simple mathematics and language skills, social skills during play and communication, learning coping skills such as: breathing exercises, learning to ask for a break, not engaging in challenging behaviors or tantrums and instead learning to ask for what they need. Skills are all taught in a natural environment that helps maintain the child's sense of safety, as well as help them progress in their learning and apply the skills to their immediate environment.
Special education · English · Math
Ibrahim - Abu Dhabi25Fr
25FrMastering Accounting: From Fundamentals to Expertise
Trusted teacher: Struggling with accounting concepts? I’m here to help! Whether you’re tackling university courses, advancing your career, or preparing for the IACMA and IACPA exams, I’m ready to guide you through any accounting topic you find challenging. Just let me know what you want to master, and I’ll help you gain the skills and confidence you need. With over 11 years of hands-on experience and professional certifications as an IACMA and IACPA, I bring real-world knowledge to every lesson. You’ll learn essential principles, practical applications, and industry-standard practices — all designed to help you excel. Join this course to: • Build a solid accounting foundation. • Gain practical insights and real-world applications. • Develop the expertise needed to advance your career. Let’s make accounting simple and rewarding. Start your journey today! ‎تواجة صعوبة في مفاهيم المحاسبة؟ أنا هنا لمساعدتك ‎سواء كنت تدرس في الجامعة، تطور مسيرتك المهنية، أو تستعد لامتحانات IACMA وIACPA، يمكنني مساعدتك في فهم أي موضوع في المحاسبة تجد فيه تحديًا. ‎أخبرني فقط ما الذي تود إتقانه، وسأساعدك على اكتساب المهارات والثقة التي تحتاجها. ‎مع خبرة تمتد لأكثر من 11 عامًا وشهادات مهنية في IACMA وIACPA، أقدم لك معرفة عملية واقعية في كل درس. ستتعلم المبادئ الأساسية، والتطبيقات العملية، وأفضل الممارسات في المجال — كل ذلك لمساعدتك على التميز. ‎انضم إلى هذا الكورس لتتمكن من: ‎ • بناء أساس قوي في المحاسبة. ‎ • اكتساب رؤى عملية وتطبيقات حقيقية. ‎ • تطوير الخبرات اللازمة للنجاح في مسيرتك المهنية. ‎دعنا نجعل المحاسبة بسيطة وممتعة. ابدأ رحلتك اليوم
Business accounting · Finance
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