what is cell and structure and part
Hello,
A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles. Each cellular organelle has a specific function. Some parts of a cell are involved in converting energy from nutrients in the food you eat into a form of energy that the cell can use.
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polygenic inheritance define the terms
Dear aspirant hope you are doing well..
Polygenic inheritance occurs when one characteristic is controlled by two or more genes. Often the genes are large in quantity but small in effect. Examples of human polygenic inheritance are height, skin color, eye color and weight.
For more details read the given article. Link is given below
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Y chromosome is less active why
Dear Aspirant, since Y-chromosome possesses small amount of euchromatin that contains DNA or genes, therefore it is genetically less active. Recent research has shown that the Y chromosome has developed some pretty convincing mechanisms to "put the brakes on", slowing the rate of gene loss to a possible standstill. I hope you are clear now. If you have any other doubts feel free to ask. All The Best!!!
IN Ginger vegetative propagation occurs through
Hi.
Vegetative propagation in Ginger occurs through Rhizome and rhizome is a thickened, underground, dorsiventral stem that grows horizontally at a particular depth within the soil. It is brown in colour and shows cymose branching. It can be distinguished from the modified root by the presence of nodes, internodes, terminal buds, axillary buds and scale leaves. The rhizome are perennial and propagate vegetatively. They store food materials and appear tuberous. E.g.f Zingiber officinale (ginger). Curcuma longa (turmeric)
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During embryogenesis the type of cell division that occur is ....
Hello there!
Mitosis is observed during cell division in embryonic development stage...The zygote initially divides to form a 2-celled embryo. Then each of these cells undergoes mitosis and divides, bringing the number of cells to 4.
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When there is a cut outside the body, platelet formation occurs. In the case of internal haemorrhage is there also the formation of platelets? How do the internal haemorrhage get repaired..I mean .. can anyone pl elaborate on the process of healing of internal haemorrhage except the surgery option ?
Hello,
Rest and hydration are usually used to treat small or mild haemorrhages. Typically, a clot forms, which temporarily stops bleeding while the blood artery heals. The extra blood will be absorbed by the surrounding body tissues over time.
Doctors have lately begun to inject extremely large dosages of clotting-stimulating combinations and substances.Internal bleeding patients may receive electrolyte-rich intravenous fluids from their physicians.
Once a person has been stabilised or is no longer in danger of dying, the next step is to find and stop the source of the bleed.
Surgery to repair the blood artery and remove the extra blood may be required depending on the degree of the bleeding.
After the bleeding has stopped, doctors may prescribe preventive medicines.
To decrease the risk of additional damage and bleeding, physical treatment and lifestyle modifications such as stopping smoking or drinking alcohol may be suggested.
Internal bleeding caused by trauma can sometimes cease on its own. Internal bleeding that persists or becomes serious as a result of trauma need surgery to resolve. When internal bleeding is severe, emergency surgery may be performed within minutes after you arrive at the hospital.
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how many and which questions were repeated in neet 2020?
Dear Aspirant,
the repeated questions for NEET examinations are generally in most cases low, as the level of competition is very high. In most cases similar kinds of questions are asked instead of repeating the same question. However, there are a few times where a question or two are repeated from the previous years. Hence to get to know of some of these repeated questions or similar questions that are asked through out the year in NEET, you may solve the previous years question papers. They are very beneficial as it not only gives you an idea of the similar questions but also helps you get familiar with question paper pattern.
To view the previous years question papers, kindly visit the link provided below.
https://medicine.careers360.com/articles/neet-question-paper
please tell me about structure of cell
Hello,
Structure of cell:
The cell is the structural and functional unit of life, which is also known as "Building blocks of life". A cell consists of three parts. They are, the cell membrane, the nucleus and the cytoplasm which is present in between the cell and the nucleus.
Cell membrane:
Every cell in the body is enclosed by a cell (Plasma) membrane. The cell membrane separates the material outside the cell, extracellular, from the material inside the cell, intracellular. All materials within a cell must have access to the cell membrane. The cell membrane is a double layer of phospholipid molecules.
Proteins in the cell membrane provide structural support, form channels for passage of materials, act as receptor sites, function as carrier molecules, and provide identification markers.
Nucleus and Nucleolus:
The nucleus, formed by a nuclear membrane around a fluid nucleoplasm, is the control center of the cell. Threads of chromatin in the nucleus contain deoxyribonucleic acid (DNA), the genetic material of the cell. The nucleolus is a dense region of ribonucleic acid (RNA) in the nucleus and is the site of ribosome formation. The nucleus determines how the cell will function, as well as the basic structure of that cell.
Cytoplasm:
The cytoplasm is the gel-like fluid inside the cell. It is the medium for chemical reaction. It provides a platform upon which other organelles can operate within the cell.
Cytoplasmic organelles:
Cytoplasmic organelles are "little organs" that are suspended in the cytoplasm of the cell. Each type of organelle has a definite structure and a specific role in the function of the cell. Examples of cytoplasmic organelles are mitochondrion, ribosomes, endoplasmic reticulum, golgi apparatus, and lysosomes.
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How many percentage are required in 12th class to become a lecturer ?
Hello,
To become a lecturer the minimum education qualification requirement is Master's degree in a relevant field of the subject you want to teach. To pursue Master's degree you must have passed bachelor's degree in a relevant field after passing 10+2. Now, to pursue bachelor's degree you must have passed 10+2 from a recognized board. Each colleges has its own eligibility requirements for admission in to bachelor's degree. The minimum percentage requirement varies. As you haven't mentioned any particular college in which you are interest to seek admission in Bachelor's degree it is difficult to tell you the exact percentage. But if you have minimum 60-80% aggregate marks in 10+2 it is beneficial for you to get admission in bachelor's degree.