Assertion   :       Penetration of sperm into ovum is a chemical process.

Reason      :       Acrosome of sperm secretes a lytic enzyme hyaluronidase which dissolves vitelline membrane of ovum.

अभिकथन   : शुक्राणु का डिंब में वेधन एक रासायनिक प्रक्रिया होती है।

कारण     : शुक्राणु का अग्रपिंडक एक अपघटनी एंजाइम हयालूरोनिडेस को स्रावित करता है जो डिंब की पीतक झिल्ली को विघटित कर देता है।

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false

 65%
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Assertion :     Cleavage is also called fractionating process.

Reason    :     In cleavage, number of blastomeres increases but size of blastomears decreases.

अभिकथन: विदलन को प्रभाजन प्रक्रिया भी कहा जाता है।

कारण: विदलन में, ब्लास्टोमेर की संख्या बढ़ जाती है लेकिन ब्लास्टोमियर्स का आकार घट जाता है।

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion   :       Nuclear-cytoplasmic ratio decreases in cleavage.

Reason      :       During cleavage, cytoplasmic synthesis is faster than DNA synthesis.

कथन:    विदलन में केन्द्रकीय-कोशिकाद्रव्यी अनुपात कम हो जाता है।

कारण:   विदलन के मध्य, कोशिकाद्रव्यी संश्लेषण DNA संश्लेषण से तीव्र होता है।

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion   :       Implantation is the process of attachment of blastocyst on uterine endometrium.

Reason      :       Implantation is controlled by trophoblast and occurs by decidual cell reaction.

कथन:- गर्भाशय, गर्भाशय अंत:स्तर पर कोरकपुटी के जुड़ने की प्रक्रिया होती है।

कारण:- प्रत्यारोपण को पोषकोरक द्वारा नियंत्रित किया जाता है और पतनिका कोशिका प्रतिक्रिया द्वारा होता है।

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion   :       Gastrular movements are morphogenetic.

Reason      :       During gastrulation, cells move in masses and towards definite direction.

अभिकथन   :      जठरांत्रीय गतियाँ आकृतिजनिक होती हैं।

कारण        :      कंदुकन के मध्य, कोशिकाएं समूह में और निश्चित दिशा की ओर बढ़ती हैं।

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion   :       Asexual reproduction is also called blastogenesis.

Reason      :       In asexual reproduction, there is no  fusion of gametes.

अभिकथन: अलैंगिक प्रजनन को कोरकजनन भी कहा जाता है।

कारण: अलैंगिक प्रजनन में, युग्मकों का कोई युग्मन नहीं होता है।

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion   :       Sexual reproduction is advantageous than asexual reproduction.

Reason      :       It is rapid mode of reproduction while asexual reproduction is slow mode of reproduction.

अभिकथन: लैंगिक प्रजनन अलैंगिक प्रजनन की तुलना में फायदेमंद है।

कारण: यह प्रजनन का तीव्र तरीका है जबकि अलैंगिक प्रजनन, प्रजनन की धीमी गति है।

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
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Assertion   :       In human male, testes are extra-abdominal and lie in scrotal sacs.

Reason      :       Scrotum acts as thermoregulator and keeps testicular temperature lower by 2°C normal spermatogenesis.

कथन: मानव नर में, वृषण अतिरिक्त-उदरीय होते हैं और अंडकोश की थैली में उपस्थित होते हैं।

कारण: अंडकोष ताप नियामक के रूप में कार्य करता है और वृषण का तापमान 2°C सामान्य शुक्राणुजनन से कम रखता है।

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
 71%
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Assertion   :       Urethra in human male acts as urinogenital canal.

Reason      :       Urethra carries only urine while sperms are carried by vasa deferentia only.

अभिकथन: मानव पुरुष में मूत्रमार्ग मूत्रजनन नलिका के रूप में कार्य करता है।

कारण: मूत्रमार्ग में केवल मूत्र होता है जबकि शुक्राणु केवल शुक्रवाहिका द्वारा ले जाये जाते हैं।

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
 57%
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Assertion   :       Penis of male is homologous to clitoris of human female.

Reason      :       Both are highly sensitive and both supported by corpora cavernosa.

अभिकथन  : पुरुष का लिंग स्त्री के भगशेफ के समजात होता है।

कारण  : दोनों अत्यधिक संवेदनशील हैं और दोनों ही सगुह पिंड द्वारा पुष्ट होते हैं।

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
 59%
To view explanation, please take trial in the course.
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