Variations, Biology

VARIATIONS -

  1. Defined as "dissimilarities of features among members of the same species".
  2. Offsprings of same parent are different and also differ from their parent.
  3. This is due to sexual reproduction variation occuring at gene level and are inheritable hence are the raw material for evolution.
  4. The genetic constitution which governs such traits is called genotype.
  5. Phenotype is the physical expression of genes of an organism.
  6. Natural selection can act upon genetic variation only when it is expressed in the phenotype.
Posted Date: 10/9/2012 1:34:31 AM | Location : United States







Related Discussions:- Variations, Assignment Help, Ask Question on Variations, Get Answer, Expert's Help, Variations Discussions

Write discussion on Variations
Your posts are moderated
Related Questions
Some organisms contain enzymes that condense a fatty alcohol and a fatty acid to generate wax esters. Draw decanol, plamitic acid (C16:0 fatty acid) and the resulting wax ester gen

Define Nutrition Management and Feeding the Premature Infant There are numerous nutritional risk factors in premature infants. These include: Elevated metabolic rate, th

Q. What are the main prophylactic measures against hookworm disease? The major prophylactic measures against hookworm disease are to avoid walking barefoot on soils suspected o

Divisions of Meiosis: Meiosis is characterized by two nuclear divisions, meiosis I and meiosis II. • The first division is a reduction division. • The second meiotic divis

Explain Endonucleases Endonucleases  are  nucleases present  in  the pancreatic juice like RNAase  andDNAase. These hydrolyze internal phosphodiester bonds which are located m

What is the meaning of Reitan's program Reitan's program can be conceptualised as an effort to demonstrate the usefulness nad accuracy of Halstead's tests and related procedure

If the condition or the post disease as a result of intraradicular infection----> treated conventionally via apex " non-surgical ", ---->Here we have 2 options either coronal

Explain the Precautions for Use of Light Microscope? 1. Clean the lens system properly. 2. Use xylol only when necessary. 3. Never lower the body tube while looking throu


What is Fern Allies - Equisetum ? The earliest land plants are thought to have evolved from green algal ancestors, since they share many features. Both green algae and plants h