BBOSE Class 12 Biology Exam Tips

Overview

• The video provides information and exam tips for Bihar Board of Open Schooling and Examination (BBOSE) students taking the Class 12 Biology exam in June/July 2024.
• The solutions and materials provided by the channel are likely to be very relevant for the exam.

Exam Information

• The Biology exam is scheduled for September 20th.
• The Physics exam is scheduled for September 20th in the second shift.
• The exam will be 70 marks, with a practical component of 30 marks.
• The written exam will have 35 objective and 35 subjective marks.
• The duration of the exam is 3 hours and 15 minutes.
• Students are advised to arrive at the examination center half an hour early

Objective Type Question and Answers

• Nucleic acids are broken down by the enzyme nucleases.
• The human hand, bat's wing, and whale's flipper are examples of homologous organs.
• "b" is not a means of RTPCR.
• Taq polymerase enzyme is obtained from bacteria.
• World Health Day is celebrated on April 7th.
• Emasculation is related to hybridization
• Mimicry is useful for concealment.
• Fungal roots are symbiotic associations dependent on each other
• Acid rain has a pH of less than 5.6.
• Photochemical smog consists of sulfur trioxide, peroxyacyl nitrates (PAN), and nitrogen oxides.
• Genetic variation is spread by vectors
• DNA recombinant technology is used for insulin production.
• Plasmids can clone small fragments of DNA.
• Anther culture is androgenesis.
• Azolla forms a symbiotic relationship with bacteria (specifically Anabaena azollae).
• The precursor of seeds is the megaspore mother cell.
• Female animals with an estrous cycle include monkeys, humans, and apes.
• The acrosome of human sperm is formed by the Golgi apparatus.
• The human placenta is formed by the chorion.
• Male gametes in flowering plants are formed by the generative cell.
• Wind pollination is found in grass.
• Species listed in the Red Data Book include rare, endangered, and vulnerable species.
• World Environment Day is celebrated on June 5th.
• The study of the interaction of antigens and antibodies in the blood is called serology.
• Kudzu is caused by a virus.
• Carbon monoxide is a major pollutant of air.
• DDT and mercury (Hg) exhibit biomagnification.
• The most adverse effect of radioactive pollutants is gene mutation.
• Heroin is a depressant.
• Pentoses are a kind of sugar
• Skin color is an example of quantitative traits in humans.
• Different forms of a gene are called alleles.
• Fibroin is the protein present in silk threads.
• Pusa Shubra is a variety of cauliflower.
• Production of plants without fertilization is done by grafting
• The site of production of ADA in the body is lymphocytes.
• A genetic material of a virus: Either DNA or RNA, but not both
• Both Azotobacter and Rhizobium are nitrogen fixators

Additional Points

• It is possible to score high marks in Biology with focus and effort
• Students should attempt all questions in the exam.
• Further assistance for subjective type questions could be availed through provided WhatsApp Number.
• Referring to previous year question papers is also advised.

Exam tips and information for Bihar Board of Open Schooling and Examination (BBOSE) students taking the Class 12 Biology exam in June/July 2024. The biology exam will consist of 35 objective and 35 subjective marks and lasts 3 hours and 15 minutes. Nucleic acids are broken down by the enzyme nucleases.