Heredity and variations, Biology

HEREDITY

1.         Like begets like i.e; every living organism reproduces its own kind. Frog reproduce frogs, rats reproduce rats only.

2.         Heredity includes the characters which are transmitted from generation to generation and these characters are fixed for a particular organism.

VARIATIONS

1.         No two individuals (except the identical twins) exhibit exactly similar characters. Differences are found even between the children of same parents. These are called variations.

2.         The cause of genetic or hereditary variations in organisms is the sexual reproduction. All organisms would have

been of the same type if there was no sexual reproduction. Plants produced through vegetative reproduction are usually of the same type.

Posted Date: 10/10/2012 3:15:11 AM | Location : United States







Related Discussions:- Heredity and variations, Assignment Help, Ask Question on Heredity and variations, Get Answer, Expert's Help, Heredity and variations Discussions

Write discussion on Heredity and variations
Your posts are moderated
Related Questions
1.sarcomastigophora 2.sporozoa 3.cnidospora 4.ciliophora

How would carbon monoxide poisoning affect a person's coloring, particularly of the mucous membranes? How would it affect the hemoglobin concentration, hematocrit, and percent oxyh

How are gametes formed in the pteridophyte life cycle, by mitosis or meiosis? What is the type of meiosis that occurs in pteridophytes? In pteridophytes gametes are made by mit

The dynamic response of the building to earthquake ground motion is the most important cause of damages to the building that are induced by earthquake. Failure of the ground and so

Q. Bitter Taste? Bitterness is an inherent property of a substance. It is due to substances such as alkaloids present in food. For example, tannins present in tea, coffee, frui

What are the respective functions of the separation of homologous chromosomes and of the separation of identical chromatids in meiosis? The separation of homologous chromosomes

What is the difference between facultative anaerobic beings and obligate anaerobic beings? Facultative anaerobic beings, such as the fungi Saccharomyces cerevisiae, a brewing y

Define Burette - Nutritional Biochemistry A burette is a vertical cylindrical piece of laboratory glassware with a volumetric graduation on its full length and a precision tap,

Does radioactive dating with isotopes of uranium and thorium provide an estimate of the starting, middle, or end of the period of Earth's formation? Explain your answer No, th

Define Estimation of Blood Thiamin Levels - Thiamin Status? The levels of free thiamin and its phosphoesters in whole blood and erythrocytes are measured using high- performanc