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Ask QuestionPosted by Mitali Jain 6 years, 8 months ago
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Abhay Chauhan 6 years, 8 months ago
Abhay Chauhan 6 years, 8 months ago
Posted by Mitali Jain 6 years, 8 months ago
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Nikita Kumari 6 years, 8 months ago
Posted by Mitali Jain 4 years, 9 months ago
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Sia ? 4 years, 9 months ago
If you are between a rock and a hard place, you are in a difficult situation where you have to choose between two equally unpleasant courses of action. You're between a rock and a hard place here. If you challenge John about his decision, he's going to be annoyed but if you don't, your staff are going to hate you. Note: People often say that they are caught or stuck between a rock and a hard place. We were caught between a rock and a hard place. We could spend two months planning the operation properly and people would say we were too late, or we could start immediately and be criticized for lack of preparation. Goss finds himself stuck between a rock and a hard place. Whichever course of action he chooses, he'll lose the support of some people.
Posted by Anshu Singh 6 years, 8 months ago
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Gaurav Seth 6 years, 8 months ago
The papaya trees are all of the same species. Some trees bear perfect flowers, both male and female parts are present. But the flowers of other trees are imperfect; they only bear either male or female part. So the trees that bear only male flowers cannot produce fruit.
Posted by Rafi Zamir 6 years, 8 months ago
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Sayeda Iram Ateeq 6 years, 8 months ago
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Mitali Jain 6 years, 8 months ago
Posted by Nasima Khan 6 years, 8 months ago
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Yogita Ingle 6 years, 8 months ago
Megaspore mother cell , is a diploid cell in plants in which meiosis occurs resulting 4 mega spores. in angiosperms or flowering plant the mega spore mother cell develops embryo sac through mega sporogenesis.
Posted by Mohini Sharma 6 years, 8 months ago
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Navjot Kaur 6 years, 8 months ago
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Navjot Kaur 6 years, 8 months ago
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Navjot Kaur 6 years, 8 months ago
Posted by Smreeti Biswas🤙🏻 6 years, 8 months ago
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Meghna Thapar 5 years, 8 months ago
The lower whorl has up to three carpels with axial placentation of the seeds, meaning the placenta tissue from the pericarp is in the middle of the fruit, whereas the upper whorl has up to 6 carpels with parietal placentation, meaning the ovules develop from the outer and lower parts of the carpels. The white membrane that covers the tops of the seeds is the septum that separates the carpels. The seeds are embedded in spongy white tissue from the pericarp called placenta, which is structurally very different from the placenta in mammals but serves a similar function. The septa separate easily from the tops of the seeds, and the seeds are most easily and least messily removed from the pericarp in a bowl of water. The seeds will sink, and the pericarp will rise.
Posted by Satish Chandra 6 years, 8 months ago
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Posted by Priyanka Rawat 6 years, 8 months ago
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Nikita Kumari 6 years, 8 months ago
Posted by Sheikh Aaib 6 years, 8 months ago
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Yogita Ingle 6 years, 8 months ago
Organisms choose to reproduce asexually by different means. Some of the asexual methods are binary fission (e.g. Amoeba, bacteria), budding (e.g. Hydra), fragmentation (e.g. Planaria), spore formation (e.g. ferns) and vegetative propagation (e.g. Onion).
Sheikh Aaib 6 years, 8 months ago
Posted by Punit Verma 6 years, 8 months ago
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Posted by Harmeek Brar 6 years, 8 months ago
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Sia ? 6 years, 8 months ago
DNA packing in eukaryotes is carried out with the help of lysine and an Argentine rich basic protein called histones. The unit of compaction is nucleosome.
- Histones are organized to form a unit of eight molecules called histone octamer.
- The negatively charged DNA is wrapped around the positively charged histone octamer, form a structure called nucleosome.
Posted by Man Mohan Singh 6 years, 8 months ago
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꧁≪Mämƭå ℭℏᑌĎℎàℜÿ? 6 years, 8 months ago
Posted by ꧁≪Mämƭå ℭℏᑌĎℎàℜÿ? 6 years, 8 months ago
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Srishti Choudhary ✍⏳ 6 years, 8 months ago
꧁≪Mämƭå ℭℏᑌĎℎàℜÿ? 6 years, 8 months ago
Ďãřşháñăã Yadav???✊ 6 years, 8 months ago
Sia ? 6 years, 8 months ago
Check revision notes here : <a href="https://mycbseguide.com/cbse-revision-notes.html">https://mycbseguide.com/cbse-revision-notes.html</a>
Posted by Anil Kumar 6 years, 8 months ago
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Posted by Shivam Kumar 6 years, 8 months ago
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Sia ? 6 years, 8 months ago
Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Genes are contained in chromosomes, which are mainly in the cell nucleus. A chromosome contains hundreds to thousands of genes.
Posted by ꧁≪Mämƭå ℭℏᑌĎℎàℜÿ? 6 years, 8 months ago
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Gaurav Seth 6 years, 8 months ago
The organisms which contain functional foreign genes experimentally introduced into their genome by genetic engineering from another species are called transgenic animals.
Transgenic animals are useful to study gene regulation, their effect on the normal functioning of the body and its development.
Posted by ꧁≪Mämƭå ℭℏᑌĎℎàℜÿ? 6 years, 8 months ago
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Sia ? 6 years, 8 months ago
Immunosuppressant drugs are a class of drugs that suppress, or reduce, the strength of the body's immune system.
Examples:
- Budesonide (Entocort EC)
- Cortisone (Cortone)
- Dexamethasone (Decadron)
- Hydrocortisone (Cortef)
Posted by Rekha Kumari 6 years, 8 months ago
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Yogita Ingle 6 years, 8 months ago
The difference between spermiogenesis and spermiation is
- In spermiogenesis spermatids are formed, while in spermiation spermatozoa are formed.
- In spermiogenesis spermatozoa are formed, while in spermiation spermatids are formed.
- In spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from sertoli cells into the cavity of seminiferous tubules.
- In spermiogenesis spermatozoa from sertoli cells are released into the cavity of seminiferous tubules, while in spermiation spermatozoa are formed.
Posted by Justin Bieber 6 years, 8 months ago
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▪▪Amrit▪▪ ❤ 6 years, 8 months ago
꧁≪Mämƭå ℭℏᑌĎℎàℜÿ? 6 years, 8 months ago
Posted by Ishu Singh 6 years, 8 months ago
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Srishti Choudhary ✍⏳ 6 years, 8 months ago
Yogita Ingle 6 years, 8 months ago
It is classified into two types of tumours based on their ability to undergo metastasis (spreading)
- Benign tumours – These tumours do not spread to the other parts of the body.
- Malignant tumours – These tumours grow quickly and spread to other normal tissues of the body. This property is called as metastasis.
Example: Breast cancer. It is a type of cancer commonly found in females. It develops from the breast tissues.
Posted by Justin Bieber 6 years, 8 months ago
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∂Αяѕнαиαα ყα∂Αѵ ??? 6 years, 8 months ago
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Srishti Choudhary ✍⏳ 6 years, 8 months ago
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