Question
For two statements are given-one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below.
  1. Both assertion and reason are true, and reason is the correct explanation of assertion.
  2. Both assertion and reason are true, but reason is not the correct explanation of assertion.
  3. Assertion is true, but reason is false.
  4. Both assertion and reason are false.
Assertion: Rhythm contraceptive method can be beneficial to the couple facing fertility problem.
Reason: Rhythm method is based on the ICSI technique.

Answer

  1. Both assertion and reason are false.

Explanation:

Rhythm method is a natural method of birth control in which the couples avoid or abstain from coitus (intercourse) from the day 10 to 17 of the menstrual cycle as ovulation occurs during this period. It is also known as periodic abstinence.

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For two statements are given-one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below.
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Assertion: Coral reefs are found in temperate forests.
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Assertion: Mutations are discontinuous variations.
Reason: Mutations occur suddenly.
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Assertion: Many plants growing in oli gotroph ic soi Is possess mycorrhizae.
Reason: Mycorrhizae help in efficient absorption of nutrients.
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Assertion: In mammals, the female secondary sexual characters are developed by gonadotropins.
Reason: Gonadotropins are secreted by Graafian follicle.
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Assertion: Cilia lining the fallopian tube helps to pick up and push the released ovum into the oviduct.
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Assertion: Alpha diversity is said to be higher if the dissimilarity between communities is higher.
Reason: Alpha diversity is a measure of diversity between the communities.
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  1. Both assertion and reason are true, and reason is the correct explanation of assertion.
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Assertion: Regulator and operator genes are not associated with constitutive genes

Reason: Constitutive genes need not be repressed.