competition questions and answers 2022

The following is a sample of the questions and answers for the biology competition: ** I. Multiple choice questions (2 points for each question, 50 points in total)** 1. The rabbit's mR A was transferred into E. Coli cells. E. Coli could synthesize rabbit's hemoglobin. This experiment explained (D) - A. Rabbit Hemoglobin-synthesizing Gene Entering E. Coli: mR A is not a gene, A error. - B. [The synthesis of protein is carried out in the Ribosome. The focus of this experiment is not on the synthesis site. B does not meet the meaning of the question.] - C. Rabbit DNA can instruct E. Coli to synthesize protein: it's inserted into the DNA instead of the DNA, C error. - D. The rabbit's messenger messenger acid could allow E. Coli to synthesize the rabbit's hemoglobinduring translation. The messenger acid could be used as a template to guide the synthesis of protein. 2. Which of the following statements about mitochondria and plastids is correct (D)? - A. Similar protein: The two have different functions, and the type of protein they contain is quite different. Wrong A. - B. The DNA contained in it was similar: the DNA of mitochondria and the DNA of the plastids had differences in structure and function, B error. - C. The essence of the production of ATPis the same: mitochondria produce ATPthrough oxyphorification, while the plastids produce ATPthrough photosynthesis. The essence is different, C error. - D. The gases produced or consumed are similar: mitochondria consume oxygen to produce carbon dioxide, while the plastids consume carbon dioxide to produce oxygen. There are gas production and consumption conditions, D is correct. 3. The eyepieces were not changed. First, the cells were observed with the 10x objective lens of the microscope, and then the 40x objective lens was changed to continue the observation. The result was (C) - A. Like larger, darker field of vision, more cells: should have fewer cells, A error. - B. If the image is smaller, the field of vision is brighter, and there are fewer cells, then the image strain is greater, and the field of vision is darker. - C. The image is larger, the field of view is darker, and the number of cells is fewer. The objective lens is larger, the magnifying factor is larger, the image is larger, the field of view is darker, and the number of cells seen is reduced. C is correct. - D. The image is larger, the field of view is brighter, and there are many cells. The field of view should be darker, and there should be fewer cells. D is wrong. 4. Which of the following descriptions of transfer DNA is correct (D)? - A. Each tR A can recognize and transport a variety of aa: each tR A can only recognize and transport one aa, A error. - B. The three bases of the transfer R A were the codons that determined the position of the aa. - C. The synthesis of transfer R A is in the plasma, while tR A is synthesized in the nucleus. - D. The tR A recognizes the codons on the messenger R A. The tR A recognizes the codons on the messenger R A through its anti-codons. D is correct. 5. The scientists have developed a chemical interference technique that is expected to silence the human body's pathogenic genes. This interference technique is likely to interfere with (B) - A. The decomposition process of the ATP-binding gene: has little to do with the silencing of the pathogenic gene, A error. - B. The synthesis process of a certain messenger DNA: Silencing the gene may interfere with the synthesis of the messenger DNA, thus preventing gene expression. B is correct. - C. Many of the DNA replication processes were mainly targeted at the suppression of gene expression, not the DNA replication process. - D. Transamination during protein metabolism: unrelated to gene silencing, D error. 6. In the description of the picture on the right, the incorrect part was (D) - A. The cell may not be undergoing mitosis, but it must be in the middle stage of mitosis: this cell may be a cell in the middle stage of mitosis or mitosis, A is correct. - B. The fourth was a single chopstick, consisting of two chromatids, which were connected by a kinetochore. This was the basic structure of a chopstick. B was correct. - C. There were two pairs of homolog genes in the cell, namely, a pair of homolog genes, and another pair of homolog genes. According to the definition of homolog genes, C was correct. - D. is synthesized by 7. A type of genetically modified virus C is formed by the DNA of the A virus and the protein shell of the B virus. Virus C is used to infect host cells, and a large number of descendant viruses are produced in the host cells. The descendant viruses have the characteristics of (C). - A. The characteristics of the C virus: The characteristics of the offspring virus are determined by the genetic material. The genetic material of C is the DNA of A, and A is wrong. - B. B virus characteristics: B's protein shell does not determine the characteristics of the offspring, B is wrong. - C. The characteristics of the A virus: Because the genetic material is the A's DNA, the offspring has the characteristics of the A virus. C is correct. - D. Unique characteristics of the offspring: mainly determined by genetic material, not unique to the offspring, D error. 8. The expression of traits in an organism follows the expression principle of "DNA→ DNA → protein". The following are several statements related to this. The incorrect one is (D) - A. In the life of A cell, DNA does not change, but the molecules of DNA and protein change. DNA is relatively stable, while the molecules of DNA and protein change according to the functional needs of the cell. - B. "DNA→ R A" was generally completed in the nucleus, while "R A → R A" was completed in the plasma. Transcription was mainly in the nucleus, while translation was in the plasma. B was correct. - C. In different cells of the same individual, the DNA was the same, but the DNA and protein were different. C was correct because of the selective expression of genes. - D. In the life of a cell, the type and quantity of DNA, DNA, and protein remain the same. ** 2. Non-multiple choice questions (50 points in total)(This is only an example. You can add more questions and answers according to your actual needs)** 1. (10 points) Please briefly describe the steps involved in the process of gene expression. - Gene expression included two main processes, namely, translation and replication. Transcription referred to the process of using a single strand of DNA as a template to synthesize the DNA. In the nucleus, the DNA template was bound to the DNA primer by the DNA primer, and the DNA primer was synthesized according to the principle of base complementation. During this process, the A (adenine) in the DNA was paired with the U (uracil) in the DNA, the T (thymine) was paired with A, the G (guanine) was paired with C (cystine), and the C was paired with G. The transcribed form of the R A included messenger R A (messenger R A), tR A (transfer R A), and rR A (Ribosome R A). - Translation was the process of synthesizing a protein using the mR A as a template. After entering the cell's nucleus, the mR A would combine with the Ribosome. The anti-codons of the tR were complementary to the codons on the mR A. The anti-codons were connected according to the order of the codons on the mR A to form a protein chain, which was finally processed to form a protein with specific functions. 2. (10 points) Comparing the similarities and differences between the two types of breathing. - Similar points: - (1) It is the process of decomposing organic matter to release energy. - (2) The first stage takes place in the cellular matrix, and there is a process of decomposition of glucose into methyruvate. This stage will produce a small amount of Ang. - The difference: - (1) Aerobic breathing requires oxygen to participate, while anoxia does not require oxygen. - (2) The places for oxygen breathing include the cellular stroma and mitochondria, while the places for oxygen breathing only include the cellular stroma. - (3) The products of oxygen breathing are carbon dioxide and water, and the products of oxygen breathing are alcohol and carbon dioxide (such as yeast oxygen breathing) or actic acid (such as animal muscle cell oxygen breathing). - (4) Aerobic breathing releases a large amount of energy, while anoxia breathing releases a small amount of energy. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

I'm not a real person, but a fan of online literature. I'll try my best to answer.

The following are some examples of the types of questions and answers that may be involved in the sixth grade mathematics competition: ##1. Calculation Class 1. [Question: Calculating 1.25×17.6 + 36.1 × 0.8+2.63×12.5] - Answer: - First of all, the equation can be transformed into: 1.25×17.6+36.1 × 1 = 1.25×17.6 + 36.1× 1 = 26.3 × 1.25. - It was further converted to: 1.25×17.6+45.125 + 26.3×1.25. - Using the distribution law of multiplication: 1.25×(17.6 + 26.3)+45.125. - First, calculate the value in the parenthesis: 1.25×43.9+45.125. - Multiplication: 54.875+45.125 = 100. 2. [Question: Calculating 7.5×2.3+1.9×2.5] - Answer: - Splitting 7.5 into 2.5×3, the equation becomes 2.5×3×2.3+1.9×2.5. - That is, 2.5×(3×2.3)+1.9 × 2.5 = 2.5×6.9+1.9×2.5. - Then, using the distribution law of multiplication: 2.5×(6.9 + 1.9)=2.5×8.8 = 22. ##2. Integer-Based Operations 1. [Question: Calculating 1999+999×999] - Answer: - Divide 1999 into 1000+999, and the formula becomes 1000+999+999×999. - Extracting the common factor 999, you get: 1000+999×(1 + 999). - First, calculate in the parenthesis: 1000+999×1000. - After extracting the common factor 1000, it was 1000×(1+999)=1000×1000 = 1000000. 2. [Question **: Calculating 8+98+998+ 9998 + 9998+99998] - Answer: - Rounding up each number, the original formula =(10 - 2)+(100 - 2)+(1000 - 2)+(10000 - 2)+(100000 - 2). - Removing the parenthesis, it was 10+100+ 1000 + 10000+100000-2×5. - The result was: 111110 - 10 = 111100. ##Three and Four Mixed Operations 1. [Question: Calculating (78.6 - 0.786×25+75%×21.4)/15×1997] - Answer: - First, calculate the formula in the parenthesis. 0.75 = 75%, then the formula becomes: (78.6-0.786×25 + 0.75×21.4)/15×1997. - Distortion of the formula in the parenthesis: 78.6×(1 - 0.25)+21.4 × 0.75 × 15×1997. - That is,(78.6×0.75+21.4×0.75) × 15×1997. - Using the law of multiplication: (78.6 + 21.4)×0.75 div15 ×1997. - First, calculate in the parenthesis: 100×0.75 × 15×1997. - According to the order of calculation: 75 div15 ×1997 = 5×1997 = 9985. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

Literature 100 questions with answers 1 What is a novel? A type of literary genre that uses plots, characters, and environments as the main material to express social life and human emotions through fictional, imaginative, and exaggerated techniques. B. A literary work that focused on narration. C. A literary work that focuses on expressing the author's thoughts and feelings. What is the main function of novels? A. To provide spiritual food for the readers. B. Shaping characters to reflect social reality. C: express the author's worldview, outlook on life, and values. What are the famous novels in the world? A Harry Potter series, Jane Eyre, Pride and Predict, etc. B. Ancient China's Dream of the Red Chamber, Water Margins, Journey to the West, Romance of the Three Kingdoms, etc. C. The Scholars, Oliver Twist, One Hundred Years of Solitude, etc. What form does a novel use to express emotions? A. Conversation format. B. Description. C. Symbolism. What is the narrative structure of a novel? A, A linear structure. B. Non-linear structure. C. Theme-first structure. What are the common topics of novels? A. Love. B. Friendship. C. Life and Death. What are the characteristics of the characters in the novel? A has a distinct personality. B had a certain complexity. C had a certain contradiction. What is the narrative perspective of a novel? A. Subjective perspective. B. An objective perspective. C. Combining subjective and objective perspectives. What are the common techniques in the plot structure of a novel? A. Reverse the structure. B. Suspense structure. C. Memoir structure. What is the ending of a novel? A. A symbolic ending. B. Open ending. C. Final outcome. What is the literary genre of novels? [A] Realist literature. B. Romanticism. C. Modern literature. What are the famous realistic novels? A. The Catcher in the Rye, One Hundred Years of Solitude, Jane Eyre, etc. B. Russia's War and Peace, Crime and Punishment, Carmen, etc. C. The Adventures of Tom sawyer, The Adventures of Huckleberry Finn, Jane Eyre, etc. What is the modernist genre of fiction? [A] Magical realism. B. Stream of consciousness literature. C. Futuristic literature. What is the romantic genre of novels? A. Romanticism. B. Romanticism. C. Spanish, Portugal, French, and British romantic literature. What is the magical realism genre of novels? A literary work that uses fantasy and surreal techniques to express the real world. B. A literary school that combined realism and romanticism. C. A literary genre that uses fantasy and surrealism to express the real world. What is the realism genre of novels? A literary work with the main purpose of describing real life, emphasizing reality, objectiveness, and exposing social problems. B. A genre of literature that focuses on describing real life, emphasizing reality, objectively, and exposing social problems. C. A literary work with the main purpose of describing real life, emphasizing reality, objectiveness, and exposing social problems. What is the romantic genre of novels? A. A literary work that focuses on expressing personal feelings and pursuing ideals. B. A genre of literature that focused on expressing personal feelings and pursuing ideals. C. A literary work that focuses on expressing personal feelings and pursuing ideals. What is the magical realism genre of novels? A literary work that uses fantasy and surreal techniques to express the real world. B. A literary school that combined realism and romanticism. C. A literary genre that uses fantasy and surrealism to express the real world. What are the characteristics of the realism genre of novels? A. Focus on exposing and describing real life. B emphasized truth, objective and truth, objective and exposing social problems. C. To describe real life as the main purpose. What are the characteristics of the romantic literary genre of novels? A. Focus on the character's emotions and personality. B. A literary work that emphasized personal feelings and the pursuit of ideals. C. The main purpose is to express personal feelings and pursue ideals.

May I ask what theme you want to write a novel about?

The 100 questions and answers to the Water Margins were a collection of knowledge contest questions about the Water Margins. We can find some questions and answers, but there are no complete 100 questions and answers. Therefore, I am unable to provide a complete answer.

An example of the topic for the story was as follows: Light in the Dark 2. One Man's War 3 Love Through Time The Beginning of Dreams The Mysterious Treasure The answer was as follows: Title 1: Light in the Darkness Answer: The story tells the story of a person who is looking for light in the darkness. Title 2: One Man's War Answer: The story tells the story of a person facing war alone. Title 3: Love Through Time Answer: The story tells the love story of two people who traveled through time and space. Title 4: The Starting Point of Dreams Answer: The story tells the story of the starting point of a person's dream and the continuous efforts to realize this dream. Title 5: Mysterious Treasure Answer: The story tells the legend of a mysterious treasure and the story of a person searching for it.

I'm not sure what the answer to the question you're talking about is. Please clarify the content of the question. For example, is it a 12123 learning method deduction question, 12123 online exam question, or other types of questions? " Choose " was equally exciting. Everyone was welcome to read it!

At present, only the 2024 Henan, Shanxi, Jiangsu Lianyungang high school entrance examination papers and answers, and the 2023 Guangdong biology test questions and answers have been obtained, but the specific contents of these test questions and answers have not been obtained. Sorry, we cannot accurately provide the true questions and answers of the biochemistry. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The compound questions in the essay mainly included compound countermeasure questions. Compound strategy questions were divided into two situations: First, the question clearly stated that the problem or reason should be summarized. For example, when words such as "summarize the problem reflected in the material (reason)","analyze... the main problem (reason)","the problem reflected in the given material needs to be handled properly","on the basis of the problem (reason) in the material" appeared, the examinee must first summarize the main problem or reason reflected in the given material, and then propose solutions. Second, it was not clearly stated in the question, but in the specific answer requirements, it was necessary to summarize the problem or reason, such as "the problem (reason) is clear","summarize the existing problem (reason) accurately and concisely" and other statements, the examinee also needed to summarize the problem or reason reflected in the material before proposing countermeasures. For example, the third question of the 2012 National Examination Volume B required to propose solutions to the "problems" in the travel of citizens; the first question of the 2018 National Examination Volume A required an overview of the research materials of the research group from three aspects: "results","problems" and "suggestions". The organization of the answers to the compound questions should be closely related to the requirements of the questions. If it was a compound countermeasure question, the first thing to do was to accurately summarize the relevant problems or reasons. In this part, it had to be clear, accurate, and concise. Then, he would propose corresponding countermeasures for the summarized problems or reasons. The countermeasures had to be targeted, feasible, effective, and well-organized. For example, after outlining the problems of traffic congestion and insufficient public transportation facilities, he proposed measures such as increasing public transportation investment and optimization of traffic route planning. At the same time, when answering questions, pay attention to the overall logical cohesion and the standard of language expression. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>