CBSE CLASS 12 - Biology - CH 5 - Principles of Inheritance and Variation - Important Definitions (#cbseNotes)

Principles of Inheritance and Variation - Important Definitions

CBSE CLASS 12 - Biology

Q1: Define heredity.

Answer: It can be defined as the transmission of characters from one generation to successive generations of living organisms.


Q2: Define Alleles

Answer: The various forms of a gene are called alleles.


Q3: What are multiple alleles?

Answer: If a gene has more than two alleles then they are said to be multiple alleles. e.g. In humans ABO blood groups is an example for multiple allelism.


Q4: What is genotype?

Answer: The genetic constitution of an organism is its genotype.


Q5: What is phenotype?

Answer: The external / observable characteristics of an organism constitute its phenotype.

CBSE Class 12 Business Studies -Syllabus (2017-18) (#cbseNotes)

Business Studies -Syllabus (2017-18)

CBSE Class 12 Business Studies

Here presents the prescribed syllabus for Class 12 Business Studies for the curriculum 2017-18.

CBSE Class 6 Science - CH4: Sorting Materials Into Groups (Worksheet) (#cbsenotes)

Sorting Materials Into Groups

Worksheet

Q1: Identify the following items which are soluble or insoluble in water?

ⅰ Salt
ⅱ Kerosene Oil
ⅲ Sand
ⅳ Sugar
ⅴ Chalk Powder
ⅵ Lime Juice
ⅶ Cooking Oil
ⅷ Vinegar


Q2: Materials are classified on the basis of appearance, hardness, solubility, density and transparency. Write down properties for the following items:

ⅰ Metals
ⅱ Plastic
ⅲ Wood
ⅳ Glass

CBSE Class 11 Business Studies -Syllabus (2017-18) (#cbseNotes)

Business Studies -Syllabus (2017-18)

CBSE Class 11 Business Studies

Here presents the prescribed syllabus for Class 11 Business Studies for the curriculum 2017-18.

CBSE CLASS 12 - PHYSICS - RAY OPTICS AND OPTICAL INSTRUMENTS - Very Short Question Answers (#cbsenotes)

RAY OPTICS AND OPTICAL INSTRUMENTS

CBSE CLASS 12 - PHYSICS

Very Short Question Answers

Q1: What is the focal length and power of a plane glass plate?

Answer: Focal length of plane glass is infinite and its power = 0.


Q2: What is the mathematical relation between object distance (p) and image distance (i) in a plane mirror?

Answer: i = -p


Q3: An object is placed at the focus of  concave lens. Where will its image be formed? 

Answer: The real image will be formed at infinity.


Q4: If the speed of light were the same in all media, would refraction still occur when light passes from one medium to another? 

Answer: No change in speed of light causes bending of light rays in refraction.

CBSE Class 7 Maths - Data Handling - NCERT EXERCISE 3.4 (#cbsenotes)

Data Handling

EXERCISE 3.4

CBSE Class 7 Maths

Q1: Tell whether the following is certain to happen, impossible can happen but not certain.
(i) You are older today than yesterday.
(ii) A tossed coin will land heads up.
(iii) A die when tossed shall land up with 8 on top.
(iv) The next traffic light seen will be green.
(v) Tomorrow will be a cloudy day.

Answer:
(i) It is certain to happen.
(ii) It can happen but not certain.
(iii)It is impossible.
(iv) It can happen but not certain.
(v)  It can happen but not certain.

CBSE Class 9 - English (Communicative) - Poetry - The Seven Ages - Summary (#cbseNotes)

The Seven Ages - Summary

Seven Ages Sculpture at Queen Victoria Street
credits: By Lonpicman (Own work)
[CC BY-SA 3.0 () or GFDL], via Wikimedia Commons

About The Poet:

William Shakespeare is viewed as the best author ever. He Paints a distinctive and clear impression of individuals. He gives a philosophical yet straightforward perspective of human life.

Summary:

The poem is a correlation nearby individual life with that to a drama.  Just like a man plays many parts in a melodrama, the man plays many parts as he progresses through different phases of his life. Like a movie or theatre play has entrances and exits thus life also bicker in life and death respectively. With their birth, men and women came to live and play competent extraordinary roles and flow away with death. The parts performed by them are generally seven.