CBSE Practical Exams Preparation 2023: Check Biology Class 12th Viva Questions

CBSE Practical Exams Preparation 2023: The Central Board of Secondary Education (CBSE) authorities will likely release the CBSE class 12 timetable 2023 by Jan 2, 2023, according to official reports. Thus, candidates going through CBSE Practical exams preparation 2023 must check the official website to know the exam dates as soon as they are out. 

By knowing the CBSE class 12 2023 timetable, candidates can prepare accordingly. In addition, through the timetable, candidates can know the exam dates for all subjects, exam timings, and important exam-day guidelines. Therefore, candidates should download and save the exam timetable as soon as it is released on the official website. 

Also Read: CBSE Date Sheet 2023 for Class 10th, 12th to Be Released By Jan 2

CBSE Practical Exams Preparation 2023: Important Biology Class 12th Viva Questions

Candidates should refer to the Biology class 12th Viva questions listed below to prepare for the CBSE Practical exam 2023. 

Q1) Why is meiosis called reduction division?

Ans: Meiosis is called reduction division because the number of chromosomes in the cell becomes half following meiosis. The first meiotic division is known as reduction division since it is in this stage that the number of chromosomes becomes half.

Q2) Full form of DNA?

Ans: Deoxyribonucleic acid.

Q3) Full form of RNA?

Ans: Ribonucleic acid.

Q4) Who invented the term mitosis?

Ans: Otto Bütschli, a German zoologist, reported data from nematode observations in 1873. Based on those discoveries, he discovered and characterised mitosis a few years later. Walther Flemming invented the term "mitosis" in 1882, which is taken from the Greek word μίτoς (mitos, "warp thread").

Q5) What is meisosis?

Meiosis refers to the process through which a single cell divides twice to produce four haploid daughter cells. These are called the gametes, which turn into sperms in males and eggs in females. The meiosis process is separated into two parts. Each level is further broken into many stages.

Candidates should visit the official website to learn more about CBSE Practical exams preparation 2023.

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