12th Standard Syllabus & Materials
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Published on: 13/05/2022
QB365 provides detailed and simple solution for every book back questions in class 12 Biology subject.It will helps to get more idea about question pattern in every book back questions with solution.
latest Book back QuestionsDownload Tamil Nadu 12th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Biology Test1.
The approach which does not give the defined action of contraceptive is
Hormonal contraceptive-Prevents entry of sperms, prevent ovulation and fertilization
Vasectomy-Prevents spermatogenesis
Barrier method-Prevents fertilization
Intra uterine device-Increases phagocytosis of sperms, suppresses sperm motility and fertilizing capacity of sperms
2.
A contraceptive pill prevents ovulation by ______.
blocking fallopian tube
inhibiting release of FSH and LH
stimulating release of FSH and LH
causing immediate degeneration of released ovum.
3.
Identify the correct statements from the following.
Chlamydiasis is a viral disease
Gonorrhoea is caused by a spirochaete bacterium, Treponema palladium
The incubation period for syphilis is 2 to 14 days in males and 7 to 21 days in females
Both syphilis and gonorrhoea are easily cured with antibiotics
4.
5.
Which of the following is correct regarding HIV, hepatitis B, gonorrhoea and trichomoniasis?
Gonorrhoea is a STD whereas others are not.
Trichomoniasis is a viral disease whereas others are bacterial.
HIV is a pathogen whereas others are diseases.
Hepatitis B is eradicated completely whereas others are not.
1.
(b)
Vasectomy-Prevents spermatogenesis
2.
(b)
inhibiting release of FSH and LH
3.
(d)
Both syphilis and gonorrhoea are easily cured with antibiotics
4.
(b)
5.
(c)
HIV is a pathogen whereas others are diseases.
12th Standard Syllabus & Materials
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Tamilnadu Stateboard 12th Standard Subjects
Maths
Chemistry
Physics
Biology
Computer Science
Business Maths and Statistics
Economics
Commerce
Accountancy
History
Computer Applications
Biology
Computer Technology
Computer Applications
Computer Science
Business Maths and Statistics
Commerce
Economics
Maths
Chemistry
Physics
Computer Technology
History
Accountancy
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