Brief Summary
This video provides a comprehensive overview of the Class 12 Biology model paper released by the Chhattisgarh Board. It highlights the importance of understanding the new syllabus and blueprint for effective exam preparation. The video covers various question types, including multiple-choice, one-word answers, and longer answer questions, offering guidance and explanations for each.
- The model paper is designed to help students understand the question format and difficulty level.
- The video emphasizes the need to prepare thoroughly, as the new syllabus may include questions from the model paper.
- Students are encouraged to download the PDF from the Eklavya RPS app or take screenshots for study.
Introduction
The video introduces the Class 12 Biology model paper released by the Chhattisgarh Board, emphasizing its importance due to the changed syllabus and blueprint. It highlights that understanding the model paper will help students prepare for their half-yearly and board exams. The exam is for 70 marks and has a duration of 3 hours. The PDF of the model paper is available on the Eklavya RPS app.
Multiple Choice Questions
The video discusses the multiple-choice questions in the model paper. The first question involves identifying parts A, B, and C in a diagram, with the correct answer being A as the female gamete, B as the male gamete, and C as the embryo sac. The second question asks where the Graafian follicle is found, with the answer being the human ovary. The third question pertains to gel electrophoresis and the location of DNA near an electrode, with the answer being the anode. The fourth question asks about the cause of AIDS, with the answer being blood transfusion. The fifth question concerns incomplete dominance, with the phenotypic ratio being 1:2:1. The sixth question asks about the fermentation process in making vinegar from alcohol, with the answer being Acetobacter aceti. The seventh question asks about RNA polymerase, with the answer being all of the above. The eighth question asks about the first transgenic cow, with the answer being A1 antitrypsin. The ninth question involves calculating energy transfer in a food chain, with the answer being 0.2 joules. The tenth question asks about the correct pairing of state and tiger reserve, with the answer being Manas in Assam.
One-Word Answer Questions
The video transitions to the section of the model paper requiring one-word answers. It points out a typo where both "MTP" and "MRI" are asked for. It then asks for the symbol used for males in pedigree analysis, a difference between template and coding strands, the name of the bacteria responsible for pneumonia, and an example of a genetically modified organism.
Two-Mark Questions
The video reviews the two-mark questions, including why colostrum is essential for newborns, Chargaff's rule, reasons for bagging, two characteristics of Homo habilis, and the definition of antibiotics. It advises students to understand the pattern and prepare accordingly, emphasizing that while the exact questions may not appear, the pattern will be similar.
Three-Mark Questions
The video discusses the three-mark questions, including the definition of the placenta and two hormones secreted by it, what is test cross, what are vestigial organs, three differences between mutualism and commensalism, three reasons for population growth, and the role of sacred groves in conservation. Students are encouraged to download the PDF or take screenshots of these questions for thorough preparation.
