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Posted by Komal Sangral 5 years, 1 month ago (10041460)
- 1 answers
Posted by Komal Sangral 5 years, 1 month ago (10041460)
- 0 answers
Posted by Komal Sangral 5 years, 1 month ago (10041460)
- 0 answers
Posted by Komal Sangral 5 years, 1 month ago (10041460)
- 0 answers
Posted by Kartik Yadav 5 years, 1 month ago (10035445)
- 1 answers
Posted by Shivangi Singh 5 years, 1 month ago (9981640)
- 1 answers
अंKit Khare 5 years, 1 month ago (10085379)
Posted by Bilha Susan Alias 5 years, 1 month ago (9075552)
- 1 answers
Meghna Thapar 5 years, 1 month ago (6237)
In developmental biology, embryonic development, also known as embryogenesis, is the development of an animal or plant embryo. Embryonic development starts with the fertilization of an egg cell (ovum) by a sperm cell, (spermatozoon). Once fertilized, the ovum becomes a single diploid cell known as a zygote. The zygote undergoes mitotic divisions with no significant growth (a process known as cleavage) and cellular differentiation, leading to development of a multicellular embryo after passing through an organizational checkpoint during mid-embryogenesis.[3] In mammals, the term refers chiefly to the early stages of prenatal development, whereas the terms fetus and fetal development describe later stages.
Posted by Premchand Rajput 5 years, 1 month ago (9779671)
- 1 answers
Yogita Ingle 5 years, 1 month ago (2577571)
Preparation of second meiotic division occurs during interkinesis. Interkinesis or interphase II is a period of rest that cells of some species enter during meiosis, between meiosis I and meiosis II. No DNA replication occurs during Interkinesis. However, it does occur during the interphase I stage of meiosis. Each chromosome still consists of two chromatids.
Posted by Sujal Belwal 5 years, 1 month ago (6814493)
- 5 answers
Yogita Ingle 5 years, 1 month ago (2577571)
Arranging the data in ascending order such that same numbers are put together, we get:
32, 32, 34, 35, 35, 38, 42
Here, n = 7
Therefore median = ((n+1)/2)th term
Median = value of 4th term
Median = 35
Here, 32 and 35, both occur twice. Therefore, 32 and 35 are the two modes.
Posted by Premchand Rajput 5 years, 1 month ago (9779671)
- 2 answers
Yogita Ingle 5 years, 1 month ago (2577571)
Synapsis: The pairing of homologous chromosomes is called synapsis. This occurs during the second stage of prophase I or zygotene.
Chiasmata: Chiasmata is the site where two non sister chromatids have crossed over. It represents the site of cross-over. It is formed during the diplotene stage of prophase I of meiosis.
Posted by Premchand Rajput 5 years, 1 month ago (9779671)
- 1 answers
Yogita Ingle 5 years, 1 month ago (2577571)
The cell cycle was discovered by Prevost and Dumas (1824) while studying the cleavage of zygote of Frog. It is a series of stages a cell passes through, to divide and produce new cells.
This entire process where with the help of one single parent cell a new cell population grows and develops is known as the cell cycle.
Posted by Premchand Rajput 5 years, 1 month ago (9779671)
- 1 answers
Yogita Ingle 5 years, 1 month ago (2577571)
|
Mitosis |
Meiosis |
Interphase |
|
| Each chromosome replicates. The result is two genetically identical sister chromatids | Chromosomes not yet visible but DNA has been duplicated or replicated |
Prophase |
|
| Prophase –Each of the duplicated chromosomes appears as two identical or equal sister chromatids, The mitotic spindle begins to form. Chromosomes condense and thicken | Prophase I – crossing-over recombination – Homologous chromosomes (each consists of two sister chromatids) appear together as pairs. Tetrad is the structure that is formed. Segments of chromosomes are exchanged between non-sister chromatids at crossover points known as chiasmata (crossing-over) |
Metaphase |
|
| Metaphase -The chromosomes assemble at the equator at the metaphase plate | Metaphase I Chromosomes adjust on the metaphase plate. Chromosomes are still intact and arranged as pairs of homologues |
Anaphase |
|
| Anaphase – The spindle fibres begin to contract. This starts to pull the sister chromatids apart. At the end of anaphase, a complete set of daughter chromosomes is found each pole | Anaphase I Sister chromatids stay intact. However, homologous chromosomes drift to the opposite or reverse poles
|
Mode of Reproduction |
|
| Asexual Reproduction | Sexual Reproduction |
Occurrence |
|
| All the cells | Reproductive cells |
Function |
|
| General growth and repair, Cell reproduction | Genetic diversity through sexual reproduction |
Cytokinesis |
|
| Occurs in Telophase | Occurs in Telophase I and in Telophase II |
Discovered by |
|
| Walther Flemming | Oscar Hertwig |
Posted by Janvi Thappa 5 years, 1 month ago (10041321)
- 1 answers
Yogita Ingle 5 years, 1 month ago (2577571)
The postman brings two or three letters for the child’s mother or father.
Posted by Shubhi Koshta. 5 years, 1 month ago (9495401)
- 1 answers
Yogita Ingle 5 years, 1 month ago (2577571)
The central provinces under the control of the Mughals were Bengal, Bihar, Chittor, Deccan, Delhi, Gujarat, Kabul, Mewar, Marwar, Orissa and Sindh.
Posted by Shubhi Koshta. 5 years, 1 month ago (9495401)
- 1 answers
Yogita Ingle 5 years, 1 month ago (2577571)
‘Internal’ frontiers of the sultanate refer to the ‘hinterland’ of the garrison towns. The ‘external’ frontiers, on the other hand, refer to the areas beyond the hinterland of the garrison towns that included the unconquered territories especially in the southern parts of India
Posted by Royal Thakur ? 5 years, 1 month ago (9579994)
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Posted by Royal Thakur ? 4 years, 6 months ago (9579994)
- 1 answers
Sia ? 4 years, 6 months ago (6945213)
the condition that distinguishes animals and plants from inorganic matter, including the capacity for growth, reproduction, functional activity, and continual change preceding death.
Posted by Sumit Verma 5 years, 1 month ago (10026603)
- 2 answers
Yogita Ingle 5 years, 1 month ago (2577571)
Network topologies describe the methods in which all the elements of a network are mapped. The topology term refers to both the physical and logical layout of a network.
Two main types of networking topologies are 1) Physical topology 2) Logical topology
King Adithya H M... 5 years, 1 month ago (9827241)
Posted by Aanya Gupta 5 years, 1 month ago (9050406)
- 2 answers
Shagun Kanwar 5 years, 1 month ago (10073415)
Gaurav Seth 5 years, 1 month ago (2898529)
दीपावलीका त्योहार पांच दिनों तक चलने वाला सबसे बड़ा पर्व होता है। दशहरे के बाद से ही घरों में दीपावली की तैयारियां शुरू हो जाती है, जो व्यापक स्तर पर की जाती है। इस दिन भगवान श्रीराम, माता सीता और भ्राता लक्ष्मण के साथ चौदह वर्ष का वनवास पूर्ण कर अयोध्या लौटे थे। इसके अलावा दीपावली को लेकर कुछ और भी पौराणिक कथाएं प्रचलित हैं। पढ़िए निबंध -
प्रस्तावना - प्रत्येक समाज त्योहारों के माध्यम से अपनी खुशी एक साथ प्रकट करता है। हिन्दुओं के प्रमुख त्योहार होली, रक्षाबंधन, दशहरा और दीपावली हैं। इनमें से दीपावली सबसे प्रमुख त्योहार है। इस त्योहार का ध्यान आते ही मन-मयूर नाच उठता है। यह त्योहार दीपों का पर्व होने से हम सभी का मन आलोकित करता है।
दीपावली कब-क्यों मनाई जाती है - यह त्योहार कार्तिक माह की अमावस्या के दिन मनाया जाता है। अमावस्या की अंधेरी रात जगमग असंख्य दीपों से जगमगाने लगती है। कहते हैं भगवान राम 14 वर्ष के वनवास के बाद अयोध्या लौटे थे, इस खुशी में अयोध्यावासियों ने दीये जलाकर उनका स्वागत किया था।
श्रीकृष्ण ने नरकासुर नामक राक्षस का वध भी इसी दिन किया था। यह दिन भगवान महावीर स्वामी का निर्वाण दिवस भी है। इन सभी कारणों से हम दीपावली का त्योहार मनाते हैं।
दीपोत्सव मनाने की तैयारियां - यह त्योहार लगभग सभी धर्म के लोग मनाते हैं। इस त्योहार के आने के कई दिन पहले से ही घरों की लिपाई-पुताई, सजावट प्रारंभ हो जाती है।

नए कपड़े बनवाए जाते हैं, मिठाइयां बनाई जाती हैं। वर्षा के बाद की गंदगी भव्य आकर्षण, सफाई और स्वच्छता में बदल जाती है। लक्ष्मी जी के आगमन में चमक-दमक की जाती है।
उत्सव - यह त्योहार पांच दिनों तक मनाया जाता है। धनतेरस से भाई दूज तक यह त्योहार चलता है। धनतेरस के दिन व्यापार अपने बहीखाते नए बनाते हैं। अगले दिन नरक चौदस के दिन सूर्योदय से पूर्व स्नान करना अच्छा माना जाता है। अमावस्या के दिन लक्ष्मीजी की पूजा की जाती है।
खील-बताशे का प्रसाद चढ़ाया जाता है। नए कपड़े पहने जाते हैं। फुलझड़ी, पटाखे छोड़े जाते हैं। असंख्य दीपों की रंग-बिरंगी रोशनियां मन को मोह लेती हैं। दुकानों, बाजारों और घरों की सजावट दर्शनीय रहती है।
अगला दिन परस्पर भेंट का दिन होता है। एक-दूसरे के गले लगकर दीपावली की शुभकामनाएं दी जाती हैं। गृहिणियां मेहमानों का स्वागत करती हैं। लोग छोटे-बड़े, अमीर-गरीब का भेद भूलकर आपस में मिल-जुलकर यह त्योहार मनाते
हैं।
उपसंहार - दीपावली का त्योहार सभी के जीवन को खुशी प्रदान करता है। नया जीवन जीने का उत्साह प्रदान करता है। कुछ लोग इस दिन जुआ खेलते हैं, जो घर व समाज के लिए बड़ी बुरी बात है।
हमें इस बुराई से बचना चाहिए। पटाखे सावधानीपूर्वक छोड़ने चाहिए। इस बात का विशेष ध्यान रखना चाहिए कि हमारे किसी भी कार्य एवं व्यवहार से किसी को भी दुख न पहुंचे, तभी दीपावली का त्योहार मनाना सार्थक होगा।
Posted by Mookshika Sharma 5 years, 1 month ago (9575034)
- 5 answers
Posted by Panchi Singh 5 years, 1 month ago (10026024)
- 1 answers
Yogita Ingle 5 years, 1 month ago (2577571)
The demonstrative adjectives this/that/these/those, which may also be pronouns, tell us where an object is located and how many objects there are.
| This and that are used to point to one object. This points to something nearby, while that points to something “over there.” | |
| Examples: | This dog is mine. This is mine. That dog is hers. That is hers. |
Posted by Parbjot Kaur Kamboj 5 years, 1 month ago (9951393)
- 2 answers
Debopriya De 5 years, 1 month ago (9420907)
Yogita Ingle 5 years, 1 month ago (2577571)
The lower town was larger than the citade. While public buildings like the Great Bath was built in the citadel, the lower town ususally had only residential buildings.
Posted by Krish Hadat 5 years, 1 month ago (9548991)
- 2 answers
Yogita Ingle 5 years, 1 month ago (2577571)
- Agriculture is a primary activity which include growing crops, fruits, vegetables, flowers and rearing of livestock.
- 50% of persons in the world are engaged in agricultural activity.
- 2/3 of India’s population is still dependent on agriculture.
- Favourable topography of soil and climate are vital for agricultural activity. The land on which the crops are grown is known as arable land.
Koushik B 5 years, 1 month ago (9832529)
Posted by Keshav Yadav 5 years, 1 month ago (9725828)
- 4 answers
S Chakraborty 5 years, 1 month ago (9063845)
Yogita Ingle 5 years, 1 month ago (2577571)
Representative democracy is a form of democracy in which the people of the country choose their own representatives. The chosen representatives of the people frame laws of the country. In representative democracy people rule through their elected representatives.
King Adithya H M... 5 years, 1 month ago (9827241)
Posted by Samnit Kumar Kori 5 years, 1 month ago (10036239)
- 2 answers
Posted by Keshav Yadav 5 years, 1 month ago (9725828)
- 3 answers
Yogita Ingle 5 years, 1 month ago (2577571)
It is because we need some else in the country to desicion on the behalf of the country and for wellfare of the country and also everyone in the country doesn't have time to take all the desicion for country.
King Adithya H M... 5 years, 1 month ago (9827241)
Posted by Deepanshu _Bhatt 5 years, 1 month ago (10040792)
- 5 answers
Yogita Ingle 5 years, 1 month ago (2577571)
On April 12, 1961, aboard the spacecraft Vostok 1, Soviet cosmonaut Yuri Alekseyevich Gagarin becomes the first human being to travel into space.
Posted by Palak Bishnoi 5 years, 1 month ago (9798327)
- 1 answers
Yogita Ingle 5 years, 1 month ago (2577571)
The average power is defined as ratio of Total work done (or Total energy consumed) and the total time taken.
Average Power = Total Work Done / Total Time.
Posted by Palak Bishnoi 5 years, 1 month ago (9798327)
- 2 answers
Maheshwari N C Chandra Babu N A 5 years, 1 month ago (9845109)
Yogita Ingle 5 years, 1 month ago (2577571)
When a bulb is connected to a battery, then the chemical energy of the battery is transferred into electrical energy. When the bulb receives this electrical energy, then it converts it into light and heat energy. Hence, the transformation of energy in the given situation can be shown as:
Chemical Energy → Electrical Energy → Light Energy + Heat Energy.
Posted by Palak Bishnoi 5 years, 1 month ago (9798327)
- 1 answers
Yogita Ingle 5 years, 1 month ago (2577571)
The work done in winding the spring gets stored up in the tightly coiled-up spring (or wound-up spring) in the form of elastic potential energy. When the wound-up spring is slowly released, its potential energy is gradually converted into kinetic energy which turns the wheels of the toy car and makes it run.
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Varsha Soni 5 years, 1 month ago (10056627)
1 Thank You