CBSE stops Moderation - No More Extra Marks

In the last week Ministry of HRD organized a meeting which was attended by CBSE (Central Board of Secondary Education) and all other State School Boards. Some of the major decisions taken in this meeting are as follows -
  • No more extra marks! Moderation, as it was called for the practice of awarding extra marks for tough or out-of-syllabus questions, will end from this year's Class 12 Board Exams. According to the board officials and school principals, the abolition of moderation would lead to a level playing ground.  At present, students from state boards that don't practice moderation find themselves at disadvantage during admission or while meeting the board-score-based eligibility criteria for professional entrance tests.
  • Grace marks to help a student pass will continue but the mark sheet will mention the actual score and the grace marks separately. A CBSE student can hope for a maximum of 3 grace marks to help him/her reach the pass marks of 33 in a paper.
  • Marks for extra-curricular activities will not be considered while grading or ranking the examinees.
  • All boards to follow NCERT (National Council of Education Research and Training) textbooks and curricula for science and mathematics from Class 9 to 12. This will help in preparing students better country wide for national level competitive exams.
  • All State School Boards to gradually adopt the CBSE ratio of objective-type, essay-type and small-answer questions.
  • Hence, from now onwards complaints from students about tough or out-of-syllabus questions in their CBSE or any of the country's 30-odd national and state school 4 board papers will not fetch them any extra marks, beginning from this year's exams.

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NCERT Class 12, Biotechnology and its Applications - CBSE Value Based Sample Questions


BIOTECHNOLOGY and its Applications

(NCERT Biology CBSE Value Based Questions)

1.       For the effective treatment of a disease, early diagnosis and understanding of pathophysiology is very important. The conventional methods of diagnosis have been replaced by the most advanced molecular diagnosis techniques.
A.  What are the conventional methods of diagnosis? 
Biotechnology and its Applications - CBSE Value Based Sample Questions

B.  What is the main drawback of the conventional method?
C. What are the advanced molecular methods?
D. What is the basis of ELISABETH test?
2.       In nature, during evolution, every organism developed some adaptive structure to protect itself from its pathogen / predators. In majority of eukaryotic cells, there is formation of double stranded RNA, as both the stands of DNA transcribe complementary ds RNA which binds to a specific mRNA, thus preventing the expression of a gene. 
A.  What is the process of gene expression?
B.  What is the source of this complementary ds RNA?
C. What is the application of this process? 
D. How does a nematode Meloidegyne incognita cause damage to tobacco plant?
E.  How the parasite cannot survive and reproduce on the genetically modified tobacco plants?
3.       Now-a-days, the market is full of genetically modified plants such as Bt Cotton, Bt Corn, Rice, Potato, Soya bean, Flavr Savr tomata (having prolonged shelf life).
A.          What does Bt signify in Bt cotton?
B.          How many types are the cry genes? Name the cry genes of Bt cotton.
C.         Cry genes express to form endotoxic cry proteins. Why does not the bacteria itself killed by the cry proteins?
D.         How larvae of certain insects feeding on tender parts of shoots, floral buds, and bolls get killed by taking cry proteins? Explain.
4.       Gene therapy is most recent and advanced therapeutic treatment of defective gene that has been diagnosed in a child/embryo. It involves insertion of normal healthy and functional gene into a person's cells and tissues to treat the disease and at the same time silencing the defective gene of individual. Correction of ADA deficiency is the example of gene therapy.
A.      Expand the term ADA.
B.      What is the role of enzyme in the body?
C.      What is the cause of disorder?
D.      Name the different methods other than gene therapy used to cure the disease.
E.      What is the permanent cure and which are the ideal cells for this treatment?

CBSE Class 12 Study Materials of your INTEREST
# Class 12, NCERT Solutions, plus CBSE Guide for main subjects (Important for CBSE Class XII Board Examinations; also helpful for Engineering and Medical Admission Tests) 

Reproductive Health - Class 12 NCERT Biology VBQs - CBSE Value Based Questions

Class 12 CBSE Biology VBQs (Value Based Questions)


Class 12 Biology VBQs - CBSE Biology Value Based Questions

1.   Recently, there was a news in the Daily Tribune that the ex radio in Haryana has skewed to 876 females in comparison to boys. The state Government has sealed twenty scanning centers, which were doing illegally sex-determination.

a)   What is sex-radio?

b)   How the sex of the baby is determined before birth?

c)   Why is there reduced number of females?

d)   What steps the State Government has taken to stop this practice?

2.       In India on 1947 when the country obtained its first independence, the population was around 35 crores, which rocketed to about 135 crores by 2011.

a)   Name the term used for this tremendous increase in population.

b)   What are the factors that had impact on the growth of population?

c)   What is the population growth?

d)   What are the consequences of this uncontrolled growth of the population?

3.       On World Health Day, there was a discussion on the ' National Television, regarding the topic 'Prosper family and Prosper Nation' under the family planning programme.

a)   How is the Government creating awareness among people about various sex related aspects?

b)   What are the different stakeholders involved in this mission?

c)   What is the need of introduction of sex -education in schools?

d)   How is educating of the marriageable age group / fertile couple can help to build a socially conscious healthy families of desired size?

4.       In these days, the posters / bills showing a happy couple with two children, with a slogan Hum Do Humane Do can be commonly seen behind the transport buses, public transport vehicles, on the walls of hospitals and the buildings along the main roads, on National Highways etc.  Moreover, the experts in the field also suggest that the problem by over-population can be overcome by motivating smaller families by using various contraceptive methods.

a)   What is the ideal contraceptive?
b)   Classify the various contraceptive methods presently available.
c)   What are the other alternatives, beside contraceptive methods which can help to check the positive population growth?

CBSE Class 12 - Useful & Related Articles

CBSE Class 12 Biology VBQ on Sexual Reproduction In Flowering Plants


Class XII NCERT Biology Value Based Questions (VBQs)

Question 1. Margaret, the biology teacher of class 12, was teaching the students about the intimate relationship of human beings with flowers since time immemorial, telling flowers as object of ornamental, social, and cultural values, etc.
A.  Name any two flowers of ornamental value cultivated in home garden.
B.  Name any two flowers used in social and cultural celebrations.
C. Name the branch concerned with cultivation of flowering plants.
CBSE Class 12 Biology VBQ on Sexual Reproduction In Flowering Plants

Question 2. In a group discussion in a biological lab 3 students were discussing the process of formation of seeds in the flowering plants. One of them said, pollination is the main step in the formation of seed. The second student asked, "Does pollination also occur in rose"? The Third student said, "Do these plans have special adaptations suited to their pollination type?"
A.  What is pollination? Name the different types of pollination.
B.  What are the characteristics of flowers such as grasses adapted to pollination by air?
C. Rose is a plant pollinated by insects.  What are the characteristics of plants pollination by air?
Question 3. A fruit seller was selling large, fresh and juicy kinnows. He told Aryan that kinnows are closely related to oranges. He could not understand how the tightly skinned kinnows are related to loosely skinned oranges. Next day Aryan enquired, from his biology teacher -
A.  What is artificial hybridization?
B.  What are the different steps involved in artificial hybridization?
C. What are the objects of this technique?
Question 4. A biology teacher was telling students about the different types of fruits produced in flowering plants. He told the fruits may be true or false like human beings.
A.    What are true fruits? Give an example.
B.    What are false fruits? Give an example.
C.    Why banana does not possess seeds like other fruits?

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Reproduction In Organisms: CBSE Class 12 Biology Value Based Questions


Biology Value Based Questions: VBQs for CBSE Class 12 NCERT Biology (Zoology)

Question 1. On biological excursion, Ramesh asked his teacher that in nature, we find some organisms live for few weeks to few months whereas the other live for many years as long as few even a thousand years.
A.  What is the term used for the certain period of time an organism lives?
B.  Is there any correlation between the time-periods an organism lives?
C. Why a rice plant lives for 3-4 months, while a banyan tree lives for 300-500 years? 
Reproduction In Organisms: CBSE Class 12 Biology VBQ

Question 2. One day Tanya noticed that in her home loan the gardener was planting the pieces of Bryophylum for production of new plants. The other day the gardener was putting the seeds of Viola (Pansy) in the soil.
A.  Name the type of reproduction, used in the first instance.
B.  Is this reproduction can be considered as a type of asexual reproduction? Is the term clone applicable to the offspring?
C. Name the type of process by which seeds are produced. Is the term clone is also applicable to the offspring produced from the seeds?
Question 3. Rajesh observed some changes in external features of his son Raman such as in his behaviour, development of stout lengthy body, appearance of moustaches, beard etc. whereas his daughter Rita did not have these changes.
A.  What is this stage of growth and maturity called?
B.  What does the end of this phase indicate?
C. What factors regulate this process of transition from childhoods to the maturity?
Question 4. Karan was very astonished to observe small fish-like tadpoles of the frog swimming in the pond; young checks hatching out of the eggs and the female frog giving birth to 4-5 puppies.
A.  Name the process & the product, formed by the fusion of male and female gametes.
B.  Name the term for animals which lay eggs. What is the special feature of the eggs? Are the eggs in fertilized or unfertilized state?
C. Name the group of animals which lay eggs. What is the special feature of the eggs? What is the source of nutrition for the developing embryo? 
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MySQL revision - Class 12 Computer Informatics Practices - Download Ncert Cbse IP Questions Bank with Answers

MySQL Class 12 CBSE Informatics Practices: IP Questions and Answers

Here we present you CBSE guess and sample questions (download answers in pdf at the end) on Computer Informatics Practices (IP) chapter MySQL revision, a Ncert Cbse Guide important for CBSE Board and other exams - 
MySQL revision - Class 12 Computer Informatics Practices - Download Ncert Cbse IP questions answers
CBSE Class 12 Informatics Practices (IP) 
Question.1: Define Primary Key, Candidate Key,  Alternate Key,  Foreign Key.
Question.2: What is Degree, Cardinality?
Question.3: Difference between CHARM and VARCHAR
Question.4: Name ACID properties (transaction properties)
Question.5: What is SQL?  Name the classification of SQL statements.
Question.6: How would you display tablets in a database?
Question.7:  Which SQL clause is used to restrict the rows returned by a Query?
Question.8: Write MySQL command to display list of existing databases.
Question.9: Which command is used to add a new tuple in a table?
Question.10: Difference between WHERE clause and HAVING clause.

NCERT Guide for Class XII - Informatics Practices (IP)
MySQL Quick Review with Solutions of CBSE IP Questions

Question.11: A Table "TRAINS" has degree 3 and Cardinality 8. What is the number of ray and columns in it?
Question.12: Difference between COUNT (*) and COUNT (column).
Question.13: How would you view constraints, Viewing columns associated in a Relation (table)?
Question.14:What is the difference between Drop Table and Delete?
Question.15: What is the purpose of ORDER By clause?
Question.16: What are the TCL commands?
Question.17: How would you begin a new Transaction?
Question.18: Write a statement to set onto commit to off.
Question.19: How would you delete a column from a table (give syntax).
Question.20: How would you change a data type of a column?

Class 12 Ncert Cbse Guide and Guess for Computer Informatics Practices (IP)

A quick review for the chapter MySQL : CBSE Guess Questions and Answers
Question.21: Which command is used to save the changes permanently in the data base?
Question.22: Which command is used to undo (or) cancel the previous transaction in a database?
Question.23: What is the purpose of SELECT statement?  Give its syntax.
Question.24: Write the operators used in SQL.
Question.25: Neha created a table layer on she realised that there is a need to include CLASS column. Which command she should use to do so? (Table Name is Student)

CBSE Guess for Informatics Practices - Class 12 IP MySQL revision NCERT Guide with Solutions of CBSE Questions important for Board Exams

Question.26: A table named "OFFICE" has 6 rows 10 columns and another table named"STAFF" has 3 rows and 5 columns5.  How many rows ams columns will be there, if we obtain the Cartesian product of these two tables?
Question.27: What are the six relational operations?
Question.28: Write a MySQL command for creating a table EMPSALARY. Whose structure is given below:
Field Name
Data type (size)
Primary Key
Not Null


Question.29: Which command is used to create a new database?
Question.30: Which command in MySQL is used to open a specific database?
Question.31:Which command in MySQL is used to view the structure of a table?
Question.32: What is a NULL value?
Question.33: What is Cartesian Join?
Question.34: What is Equi-Join?
Question.35: Which command is used to modify existing data in a table?
Question.36: Which command is used to delete rows from a table?
Question.37: What are constraints? Give examples.
Question.38: In a database there is a table Cabinet. The data entry operator is not able to insert a null value in a column. What may be the possible reasons?
Question.39: Do the primary key of a table accept null or duplicate values?
Question.40: What is Transaction?
Question.41: What is the purpose of inserting Savepoint?
Question.42: What is the difference between Rollback and Rollback To?

Viva Questions with Answers asked in Class 12 Physics, Chemistry, Biology Practical Examinations and Project Work

Viva Questions with Answers asked in Class 12 Physics, Chemistry, Biology Practical Examinations and Project img
In the practical examination along with experiments you have to face viva voce from the internal / external examiner. It is just to know your depth of knowledge and understanding of the given experiment / project work. Based on your performance you will be credited with the deserving score.
As CBSE releases the date sheet, students get engrossed mostly in preparing for the theoretical examinations. As a result, most of the students skip preparing for their practical examination which is also important part for grabbing overall a good score. In each of these subjects Physics, Chemistry and Biology 30 per cent marks is reserved for their Practical Examinations. That means out of 100 total marks, 30 marks is allotted for Practical Examination. And out the 30 marks of Practical, generally 5-7 marks is kept for viva voce.   

Syllabus for Class 12 Physics and Chemical Practical Examinations

Evaluation scheme Maximum Marks: 30 (Total 30 marks for each Physics and Chemistry)
  • 2 Experiments containing 8 marks each (one from each section, total = 16 marks)
  • Practical Record = 6 marks
  • Project Work = 3 marks
  • Viva on Experiments and Project Work = 5 marks

Syllabus for Class 12 Biology Practical Examination

Evaluation scheme Maximum Marks: 30 (Total 30 marks)
  • One major experiment 5
  • One minor experiment 4
  • Slide preparation 5
  • Spotting 7
  • Practical record + viva voce 4
  • Project record + viva voce 5
The questions asked as well as the circumstance in which a student faces viva voce are different from the theoretical examination so it is always better to prepare for viva voce separately. A student with some prior preparation for viva is definitely going to give him or her more confidence. Besides knowledge, confidence level and body language also play an important role while facing the external taking viva examination.  

Types of Questions asked in Class 12 Viva Voce

Methodology and Principles are frequently asked questions in viva voce hence; you should know the basics of the experiment. There might be the some of the questions based on the experiment you are asked to perform like how the slope is calculated, what is the aim of experiment, what are apparatus required, what are the precautions that need to be taken into account, etc. You should be able to explain how you performed the experiment. How you took the readings. Another important question is about the least count of the measuring instrument.
The level and variety of questions asked in viva voce depends solely on the concerned teacher and the type of experiment given to you and so, there can be plethoras of questions in subjects.
To enable a candidate preparing for Class 12 viva voce examination of Physics, Chemistry and Biology Practical plus Project Work we have given some good number of questions with their answers as under (please click on the links below):

(To be continued . . . visit again!)

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