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Describe the Lactational Amenorrhea meth...

Describe the Lactational Amenorrhea method of birth control

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This method is based on the fact that ovulation and menstrual cycle do not occur during the period of intense lactation following parturition. Therefore, as long as the mother breast-feeds the child fully, chances of conception are almost nil. However, this method has been reported to be effective only upto a maximum period of six months following parturition. As no medicines are devices are used , side effects are almost nil . Chances of failure are high.
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TRUEMAN BIOLOGY-REPRODUCTION-SECTION-B
  1. (i)Given below is a T.S. of an apple. Identify a,b and C (ii)Why is ...

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  2. A fertilized egg is blue print of future development. Explain

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  3. Describe the Lactational Amenorrhea method of birth control

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  4. A moss plant produces a large number of antherozoids but relatively on...

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  5. Mention the reasons for difference in ploidy of zygote and primary end...

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  6. How many haploid nuclei and haploid cells are present in the female ga...

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  7. Placenta acts as an endocrine gland. Explain.

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  8. The number of taxa exhibiting asexual reproduction is drastically redu...

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  9. Draw the sketches of a zoospore and conidia. Mention two dissimilariti...

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  10. Give below are the events that are observed in an artificial hybridiza...

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  11. Why most of the zygotes in angiosperms divide only after certain amoun...

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  12. Corpus luteum in pregnancy has a long life. However, if fertilisation ...

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  13. What are the events taking place in the ovary and uterus during follic...

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  14. Expland: FSH and LH. Mention one function each. .

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  15. The procedure of GIFT involves the transfer of female gamete to the fa...

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  16. Briefly explain IVF and ET. What are the conditions in which these met...

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  17. All reproductive tract infections RTIs are STDs, but all STDs are not ...

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  18. What do you understand by amniocentesis ? Why is there a statutory ba...

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  19. When and where do chorionic villi appear in humans ? State their funct...

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  20. (a) How does cleistogamy ensure autogamy? (b) State one advantage an...

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