12Th RBSE Guess Paper

I want the sample question paper of Biology of 12th of Rajasthan Board of Secondary Education RBSE so can you provide me?

Ok, I am providing you the sample question paper of Biology of 12th of Rajasthan Board of Secondary Education RBSE

RBSE 12th Biology question paper

SECTION-A

Q.1 What is emasculation ? [1]
Sol. Removal of anther (Male sex organ) of bisexual flower is called emasculation.
Q.2 Write down the name of hormone secreted by ovary in the later phase of pregnancy. [1]
Sol. Hormone progesterone is produced by corpus luteum during later phase of pregnancy. It helps in maintaining
pregnancy.
Q.3 Mention the application of in vitro fertilization. [1]
Sol. In vitro fertilization (IVF) is a method of ART (Assisted Reproductive Technology) to treat infertility.
Q.4 Write down the name of any one natural method of contraceptive. [1]
Sol. Following are the natural methods of contraception
(i) Periodic abstinence
(ii) Withdrawl method
(iii) Lactational amenorrhea.
Q.5 On which continent Homo sapiens arose ? [1]
Sol. Homo sapiens arose in African continent.
Q.6 Write down the name of typhoid causing pathogen. [1]
Sol. Typhoid is a infective disease caused by bacterium Salmonella typhi.
Q.7 How does opioids effect the body ? [1]
Sol. Opioids are the drugs which binds to specific opioid receptors present in our central nervous system and
gastrointestinal tract and causes change in behaviour.



RBSE 12th Biology question paper





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