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Ask QuestionPosted by Ashok Bansiwal 6 years, 3 months ago
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Harshit Mishra 6 years, 3 months ago
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Vikas Singh 6 years, 3 months ago
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K@Łp@N@ $Øđh!?? 6 years, 3 months ago
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Deepesh Panchal 6 years, 3 months ago
Harshit Mishra 6 years, 3 months ago
Posted by Shrey Pandey 6 years, 3 months ago
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Harshit Mishra 6 years, 3 months ago
Posted by Aarushi Singh 6 years, 3 months ago
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Yogita Ingle 6 years, 3 months ago
| Oestrus cycle | Menstrual cycle |
| 1. The cyclic changes in the activities of ovaries and accessory ducts as well as hormones during the reproductive phase of non-primate mammals is called oestrus cycle. 2. Female show strong irresistible sexual urge. 3. there is estrus/heat production at the time of ovulation and copulation occurs only at that period 4. The shedding of endometrium and bleeding do not occur. E.g., cows, sheep, rats, deers, dogs and tigers etc. |
1. The cyclic changes in the activities of ovaries and accessory ducts as well as hormones during the reproductive phase of primate mammals is called menstrual cycle. 2. Female do not show irresistible sexual urge. 3. There is no heat period and copulation occurs during any time of the cycle. 4. The shedding of endometrium and bleeding occurs. E.g., monkeys, apes and humans. |
Posted by Anjanee Kumar Dwivedi??? 6 years, 3 months ago
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Aarushi Singh 6 years, 3 months ago
Yogita Ingle 6 years, 3 months ago
- Lac refers to lactose in lac operon.
- The lac operon consists of one regulatory gene the i gene which codes for the repressor of the lac operon and three structural genes (z, y, and a).
- The z gene codes for beta-galactosidase (β-gal), which hydrolyses disaccharide, lactose into galactose and glucose.
- The y gene codes for permease, which increases permeability of the cell to β-galactosides.
- The a gene encodes a transacetylase.
- Lactose is termed as inducer as lactose is the substrate for the enzyme beta-galactosidase and it regulates switching on and off of the operon.
- In the absence of inducer
- The repressor of the operon is synthesized (all-the-time – constitutively) from the i gene.
- The repressor protein binds to the operator region of the operon and prevents RNA polymerase from transcribing the operon.
- In the presence of inducer
- The repressor is inactivated by interaction with the inducer which allows RNA polymerase access to the promoter and transcription proceeds.
- Regulation of lac operon by repressor is referred to as negative regulation.
Posted by Purshotam Lal Girdhar 6 years, 3 months ago
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Harshit Mishra 6 years, 3 months ago
Posted by Mehak Preet 6 years, 3 months ago
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Miss Mor 6 years, 3 months ago
Posted by Savitri Devi??? 6 years, 3 months ago
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Hritwik Raj 6 years, 3 months ago
Posted by Yukta Mathur 6 years, 3 months ago
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Harsh Mishra 6 years, 3 months ago
@ Gaurabh Seth, Sir yeh wala toh lagta hai apne khud se likha hai.......
Gaurav Seth 6 years, 3 months ago
About 54.6 per cent of total working population are cultivators and agricultural labourers, whereas only 3.8% of workers are engaged in household industries and 41.6 % are other workers including nonhousehold industries, trade, commerce, construction and repair and other services.
Posted by Harman Thind 6 years, 3 months ago
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Gursharn Kaur 6 years, 3 months ago
Hritwik Raj 6 years, 3 months ago
Posted by Harman Grewal 6 years, 3 months ago
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Gaurav Seth 6 years, 3 months ago
SHGs (Self-Help Groups) and micro credit programmes promote thrift in small proportions by a minimum contribution from each member. From the pooled money, credit needs are fulfilled. The member have to repay the credit in small instalments at low rate of interest. The borrowings are mainly for consumption purposes.
Posted by Parwinder Singh 6 years, 3 months ago
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Posted by Karthika Omanakuttanpilla 6 years, 3 months ago
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Yogita Ingle 6 years, 3 months ago
Albuminous Seed : Seed retains endosperm as it is not completely used up during embryo development. Eg. Wheat, maize, barley, sunflower, castor.
Non albuminous seed : Seeds do not retain endosperm as it is completely utilized during embryo development. Eg. Pea, grountnut.
Posted by Simran Subba 6 years, 3 months ago
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Posted by Satyam Baghel 6 years, 3 months ago
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Sia ? 6 years, 3 months ago
Lenz's law states that the direction of induced emf is such, that it produces a current which opposes the change in magnetic flux that produced it.
Mathematically,
e = -N{tex}\frac{d\varphi}{dt}{/tex}
Suppose a magnet is moved towards a closed coil. The direction of induced emf in it by Lenz’s law opposes its inward motion. As a result, the magnet will be moved towards the coil against this opposing force. In such a case work will have to be done. This work is converted into electrical energy in the form of induced emf. Thus, Lenz’s law is in accordance with the law of conservation of energy.
K@Łp@N@ $Øđh!?? 6 years, 3 months ago
K@Łp@N@ $Øđh!?? 6 years, 3 months ago
Posted by Utkarsh Singh 6 years, 3 months ago
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Priya Dharshini ? 6 years, 3 months ago
Posted by Joban Sidhu Sidhu 6 years, 3 months ago
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Posted by Vineet Kumar 6 years, 3 months ago
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Sia ? 6 years, 3 months ago
You can check the syllabus here : https://mycbseguide.com/cbse-syllabus.html
Posted by Gunjan Sharma 6 years, 3 months ago
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Sia ? 6 years, 3 months ago
You can check marking scheme in the syllabus here : https://mycbseguide.com/cbse-syllabus.html
Posted by Md Chand Akhtar 6 years, 3 months ago
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Sia ? 6 years, 3 months ago
A web browser is a software application for accessing information on the World Wide Web.
Harsh Chhillar 6 years, 3 months ago
Posted by Kumar Vishal Behera 6 years, 3 months ago
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Kumar Vishal Behera 6 years, 3 months ago
Harshit Mishra 6 years, 3 months ago
Posted by Yukta Mathur 6 years, 3 months ago
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Sia ? 6 years, 3 months ago
People migrate in search of better employment opportunities that fetch them higher earnings.
The four streams of migration in India are:
- Rural - Rural.
- Rural -Urban.
- Urban - Urban.
- Urban - Rural.
Vrinda Rajput 6 years, 3 months ago
Posted by Shikhar Sinha 6 years, 3 months ago
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Shudhanshu Ranjan 6 years, 3 months ago
Khuskaran Sidhu 6 years, 3 months ago
Posted by Siddharth Rajput 6 years, 3 months ago
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Sia ? 6 years, 3 months ago
| Finals goods are those goods which are used by the consumers for final use. | Intermediate goods are those goods which are not ready for final consumption and are used as raw materials |
| Final goods are manufactured using intermediate goods. | Intermediate goods are used as raw material for further production of final goods. |
| They are finished goods. | They are unfinished goods. These goods are not meant for sale. |
| Value is calculated for GDP. | Not calculated, as the value of final goods included the value of intermediate goods |
| e.g. Sugar, salt, biscuits purchased by consumer for final consumption are final goods. | e.g. flour, milk and sugar are intermediate goods used in making biscuits. |
Posted by Vijay Kumar Verma 6 years, 3 months ago
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Posted by Aayushi Narang 6 years, 3 months ago
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Alisha Wadhwa 6 years, 3 months ago
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Yashika Bansal 6 years, 3 months ago
1Thank You