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Question
Select the incorrect action of hormonal contraceptive pills from the following.
Options
Inhibition of spermatogenesis.
Inhibition of ovulation.
Changes in cervical mucus impairing its ability to allow passage and transport of sperms.
Alteration in uterine endometrium to make it unsuitable for implantation.
Solution
Inhibition of spermatogenesis.
RELATED QUESTIONS
Explain how they act as effective contraceptives in human females.
Study the graph given below and answer the question that follows:
(i) The curve 'b' is described by the following equation :
`"dN"/"dt" = "r""N" {"K-N"/"K"}`
What does 'K' stand for in this equation? Mention its significance.
(ii) Which one of the two curves is considered a more realistic one for most of the animal populations?
(iii) Which curve would depict the population of a species of deer if there are no predators in the habitat? Why is it so?
Select the correct term from the bracket and complete the given branching tree.
(Barriers, Lactational amenorrhoea, CuT, Tubectomy)
Open Book Assessment
‘Healthy reproduction, legally checked birth control measures and proper family planning programs are essential for the survival of mankind’ Justify.
The concept that population tends to increase geometrically while food supply increases arithmetically was put forward by ______.
Amniocentesis is a process to ______.
What is the most important factor for the success of animal population?
If the mean and the median pertaining to a certain character of a population are of the same value, the following is most likely to occur ______.
Consider the statements given below regarding contraception and answer as directed thereafter.
- Medical Termination of Pregnancy (MTP) during first trimester is generally safe
- Generally, chances of conception are nil until mother breast-feeds the infant up to two year
- Intrauterine devices like copper-T are effective contraceptives
- Contraception pills may be taken up to one week after coitus to prevent
Which of the following groups of contraceptives are included under barrier methods?
Tying up or removing a small part of fallopian duct is called ______.
The best way to decrease population of a country is ______.
Which of the following is not a characteristic of an ideal contraceptive?
Progesterone pill helps in preventing pregnancy by not allowing ______.
Which of the following is a full proof method contraception?
Contraceptive pills prevent ovulation and implantation.
On which days of the menstrual cycle is ovulation expected?
What are the probable factors that contributed to population explosion in India?
Give one significant contribution of the following scientist:
T.R. Malthus
