Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Harsh Sabbarwal 5 years, 5 months ago
- 2 answers
Posted by Lutfunnesha Khatun 5 years, 5 months ago
- 1 answers
? Pranali.A.P ? 5 years, 5 months ago
Posted by Lucifer ? Morningstar? 5 years, 5 months ago
- 1 answers
Yogita Ingle 5 years, 5 months ago
| DNA is a chemical which stores the genetic information of an organism. | Chromosomes are the packed structure of a DNA with proteins. |
| A single gene is a locus on a chromosome. | DNA is located within the nucleus of the cell.. |
| DNA is made up of simpler monomer units called nucleotides. | Chromosomes are composed of DNA, histones, and RNA. |
| A long chain polynucleotide. | Chromosomal mutations are relatively large. |
Posted by Urmikumari Mahato 5 years, 5 months ago
- 3 answers
? Pranali.A.P ? 5 years, 5 months ago
Posted by Vivek Kumar Prajapati 5 years, 5 months ago
- 1 answers
Yogita Ingle 5 years, 5 months ago
Haemoglobin is the respiratory pigment that transports oxygen to the body cells for cellular respiration. Therefore, deficiency of haemoglobin in blood can affect the oxygen supplying capacity of blood. This can lead to deficiency of oxygen in the body cells. It can also lead to a disease called anaemia. The average haemoglobin content of blood, irrespective of ***, is 14.5 gm per 100 mL.
Posted by Vishvajit Yadav 5 years, 5 months ago
- 2 answers
?Prashant? ?Umarani? 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
DNA or Deoxyribonucleotide is the basis of genetic mechanism. Genes are the specific parts of chromosomes or Deoxyribo Nucleic Acid (DNA) segments which determine the hereditary characteristics.
Importance of DNA copying in reproduction:
- DNA copying mechanism is extremely necessary for reproduction as copying of DNA helps in transfer of information or characters from parents to offspring.
- It also generates variations during sexual reproduction. This variation leads to evolution.
- DNA copying is also necessary because DNA (Deoxyribonucleic acid) is the genetic material found in chromosomes, which are present in the nucleus of a cell.
- DNA determines the body design of an individual. It carries the genetic information and key for the production of every type of cell proteins, which control the function of living organisms.
- DNA copying also helps in proper survival of the organism by similar copying and variation during DNA copying leads to evolution
Posted by Lucifer ? Morningstar? 5 years, 5 months ago
- 5 answers
Drift? Boi? 5 years, 5 months ago
Drift? Boi? 5 years, 5 months ago
Posted by Lucifer ? Morningstar? 5 years, 5 months ago
- 1 answers
Ishika ? 5 years, 5 months ago
Posted by Lucifer ? Morningstar? 5 years, 5 months ago
- 1 answers
Ishika ? 5 years, 5 months ago
Posted by Mansi Mishra 5 years, 5 months ago
- 1 answers
Lucifer ? Morningstar? 5 years, 5 months ago
Posted by Single Queen.. 5 years, 5 months ago
- 3 answers
Posted by Dharmendra Singh 5 years, 5 months ago
- 1 answers
Mansi Mishra 5 years, 5 months ago
Posted by Kishan Maurya 5 years, 5 months ago
- 1 answers
Rohan Kumar 5 years, 5 months ago
Posted by A . 5 years, 5 months ago
- 1 answers
Meghna Thapar 5 years, 5 months ago
Elements are substances that are made from one type of atom. An element cannot be broken down into any other substance. Compounds are substances made from atoms of different elements joined by chemical bonds. They can only be separated by a chemical reaction. The main four types of reactions are direct combination, analysis reaction, single displacement, and double displacement.
Posted by Ishika ? 5 years, 5 months ago
- 5 answers
Vaibhav (Silent Love)?? Avi 270505??? 5 years, 5 months ago
Posted by David Talukdar 5 years, 5 months ago
- 1 answers
Posted by Himanshi . 5 years, 5 months ago
- 3 answers
Posted by Sonu Singh 5 years, 5 months ago
- 4 answers
Kyōka ( Demon Snow ) 5 years, 5 months ago
Posted by ~Rashi ♥️♥️ 5 years, 5 months ago
- 2 answers
? Pranali.A.P ? 5 years, 5 months ago
Posted by ? Pranali.A.P ? 5 years, 5 months ago
- 1 answers
Kritika Dhiman 5 years, 5 months ago
Posted by ? Pranali.A.P ? 5 years, 5 months ago
- 5 answers
Yogita Ingle 5 years, 5 months ago
Only a concave mirror can form real image. So, option (b) is correct answer.
Posted by ? Pranali.A.P ? 5 years, 5 months ago
- 3 answers
Yogita Ingle 5 years, 5 months ago
For reflection from a plane mirror, distance between object and mirror = distance between mirror and the image=0.25m
So, distance between object and image
= (distance between object and mirror) + (distance between mirror and image)
=(0.25+0.25)m
=0.5m
So, option (c) is correct option.
Posted by Tina ? 5 years, 5 months ago
- 4 answers
Yogita Ingle 5 years, 5 months ago
Combustion Reaction: Carbon and carbon compounds give carbon dioxide, vapor, heat and light on burning in air. Following are some of the examples of combustion reaction of organic compounds:
C + O2 → CO2 + Heat + Light
Oxidation: In combustion reaction, carbon compounds are oxidized in the presence of oxygen. The following example is different because alkaline KMnO4 is the oxidizing agent in this reaction.
CH3CH2OH + (Alkaline KMnO4/Acidified K2Cr2O7) → CH3COOH
Posted by Tina ? 5 years, 5 months ago
- 2 answers
Yogita Ingle 5 years, 5 months ago
Homologous Series
- A series of carbon compounds in which same functional group substitutes the hydrogen atom is called a homologous series.
- These compounds have similar chemical properties due to the addition of same kind of functional group throughout the chain.
- For example, the series of alkanes i.e. Methane, ethane, propane, butane and so on is a homologous series.
Posted by Tina ? 5 years, 5 months ago
- 2 answers
Yogita Ingle 5 years, 5 months ago
Organic compound, one of a large class of chemical compounds in which one or more carbon atoms are covalently paired with other elements ‘ atoms, most commonly hydrogen, oxygen, or nitrogen.
Posted by Anushka ?? 5 years, 5 months ago
- 3 answers
Yogita Ingle 5 years, 5 months ago
A reaction in which one reactant undergoes oxidation whereas the other gets reduced during the course of reaction are termed as oxidation-reduction reactions or redox reactions. Oxidation refers to the loss of electrons or increase in oxidation state by a molecule, atom, or ion. Reduction refers to the gain of electrons or decrease in oxidation state by a molecule, atom, or ion.
Consider the following redox reaction.
- Burning sugars, such as glucose (C6H12O6) and the fatty acids in the fats we eat.
|
C6H12O6(aq) + 6 O2(g) --> 6 CO2(g) + 6 H2O(l) |
Vãkúl Gâur 5 years, 5 months ago
Posted by Rajeev Rajan 5 years, 5 months ago
- 2 answers
Yogita Ingle 5 years, 5 months ago
R1 = R2 = R3 = 3 Ω
1/R = 1/R1 + 1/R2 + 1/R3
= 1/3 + 1/3 + 1/3 = 3/3 = 1
∴ R = 1 Ω
Posted by Varsha Kurian 5 years, 5 months ago
- 2 answers
Posted by Ayush Pandey 5 years, 5 months ago
- 1 answers
Meghna Thapar 5 years, 5 months ago
SI unit of current is ampere. 1 ampere is the constant current that will produce an attractive force of 2 × 10−7 Newton per meter of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one meter apart in a vacuum. When 1 coulombs of charge flow through any cross-section of a conductor in 1 second, the electric current flowing through it is said to be 1 ampere.
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Yogita Ingle 5 years, 5 months ago
In highly organized plants, transport system consists of vascular tissue, namely xylem and phloem. Xylem carries water from roots to different parts of the plants. Phloem carries nutrients and food from leaves to different parts of the plants. Xylem is made up of tracheids, vessels, xylem parenchyma and xylem fibres. It is a lignified tissue. Evaporation of water from the leaves creates a transpiration pull. This results in the upward movement of water from the roots through the xylem. It shows only unidirectional flow.
Phloem is a non-lignified tissue. It is made up of sieve tubes, companion cells, phloem parenchyma and phloem fibres. They transport nutrients by the process of transportation. It shows multi-directional flow by using hydrostatic pressure.
1Thank You