Physics Handwritten Notes ™
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What is the total energy possessed by a satellite of mass “m” orbiting above the earth of mass “M” and radius “R” at a height “h”?
Anonymous Quiz
30%
[(G*M*m)/2*(R+h)]
45%
-[(G*M*m)/2*(R+h)]
18%
[(G*M*m)/(R+h)]
7%
-[(G*M*m)/(R+h)]
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Periodic Table Short Notes ✍
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DNA is stored majorly in ___ of the cell.
डीएनए मुख्य रूप से कोशिका के _____ में संगृहित होता है
Anonymous Quiz
9%
golgi body/ गौल्जी काय
18%
cytoplasm/ कोशिका द्रव्य
13%
plasma membrane/ प्लास्मा झिल्ली
61%
nucleus/ केंद्रक
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Which micronutrient is supplied by soil to plant?
मिट्टी पौधे को किस सूक्ष्म पोषक तत्व की आपूर्ति करती है ?
Anonymous Quiz
28%
Phosphorous/फॉस्फोरस
12%
Calcium/कैल्शियम
21%
Zinc/ जस्ता
39%
Nitrogen / नाइट्रोजन
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In biological terms, ____ is a relationship between two organisms in which one organism benefits and the other is unaffected.
जीव विज्ञान की भाषा में _____ ,दो जीवों के बीच एक संबंध है जिसमें एक जीव को लाभ होता है तथा दूसरा जीव अप्रभावित रहता है।
Anonymous Quiz
15%
Amensalism / असहभोजिता
26%
Mutualism / अन्योन्याश्रयवाद
42%
Commensalism/ सहभोजित्व
17%
Parasitism / परजीविता
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Which part of the brain maintains posture and balance of the human body?
मस्तिष्क का कौन सा भाग मानव शरीर के अंग-विन्यास और संतुलन को बनाए रखता है?
Anonymous Quiz
25%
Cerebrum/प्रमस्तिष्क
11%
Pons/पोंस
55%
Cerebellum/ पश्चमस्तिष्क
9%
Medulla/अंतस्था
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ANATOMY LENGTHS

4cm Long Structures In The Body
👉Inguinal canal
👉Anal canal
👉Female urethra
👉Auditory tube
👉Cystic duct
👉Optic nerve
👉Prostatic urethra
👉Left principle bronchus

5cm Long Structures In The Body
👉Male larynx
👉Left primary bronchus
👉Parotid duct
👉Submandibular duct
👉Lateral lobe of thyroid gland
👉Testis
👉First part of duodenum
👉Neck of femur
👉Lateral wall of bony orbit
👉Medial wall of bony orbit

7.5cm Long Structures In The Body
👉Anterior wall of vagina
👉Virgin uterus
👉Second part of duodenum
👉Bile duct

9cm Long Structures In The Body
👉Appendix
👉Multiparous uterus
👉Posterior wall of vagina

11cm Long Structures In The Body
👉Trachea
👉Kidney
👉Uterine tube
👉Third part of duodenum

12cm Long Structures In The Body
👉Rectum
👉Spleen
👉Pharynx

15cm Long Structures In The Body
👉Adductor canal
👉Ascending colon
👉Pancreas
👉Root of mesentery

25cm Long Structures In The Body
👉Oesophagus
👉Descending colon
👉Ureter
👉Duodenum

45cm Long Structures In The Body
👉Spinal cord
👉Thoracic duct
👉Transverse colon
👉Femur
👉Sartorius
👉Vas deferens
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💥Very Important Points of NCERT

🌟1. Genetic map discovered by Alfred Sturtevent.

🌟 2. Henking trace a specific nuclear structure (X-body) all through spermatogenesis in a few insects (1891).

🌟3. Down’s syndrome was first described by Langdon Down (1866)

🌟4. DNA (Nuclein) was first identified by Friedrich Meischer (1869).

🌟 5. X-ray diffraction data produced by Wilkins & Franklin.

🌟 6. Transforming principle was given by Griffith (1928).

🌟 7. Biochemical characterisation of transforming principle was given by
Avery, MacLeod & Mc Carty.

🌟 8. Unequivoal proof that DNA is the genetic material came from the
experiements of Hershey & Chase (1952).

🌟 9. Replication scheme was given by Watson & Crick.

🌟 10. Central dogma of biology was given by Crick.

🌟 11. The experimental proof that DNA replicates semiconservatively was
given in prokaryotes by Meselson & Stahl (1958).

🌟 12. The experimental proof that DNA replicates semiconservatively was
given in eukaryotes by Taylor (1958).

🌟 13. George Gamow (a physicist) proposed that codon was triplet.

🌟14. Har Gobind Khorana synthesizes RNA molecules with defined
combination of bases (homopolyers & copolymers).

🌟 15. Nirenberg in cell-free system for protein synthesis finally helped the
code to be deciphered.

🌟 16. Polynucleotide phosphorylase is called Severo Ochoa enzyme

🌟 17. Lac operon was given by Jacob & Monad.

🌟 18. Automated DNA sequencers worked on the principle of a method
developed by Frederick Sanger

🌟 19. Frederick Sanger developed the method for determination of amino
acid sequences in proteins.

🌟 20. DNA fingerprinting technique was developed by Alec Jeffreys.

🌟 21. Spontaneous generation theory was dismissed by Louis Pasteur.

🌟 22. Life comes from pre-existing life it is told by Louis Pasteur.

🌟 23. Oparin & Haldane proposed that the first form of life could have come from pre-existing non-living organic molecules.


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