Variations, Biology


  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
Explain the effect on Minerals of the Human milk? There appears to be no relationship between dietary intake and concentrations in milk for copper, iron or zinc. Iron supplemen

How many of each type of core histone would it take to wrap the entire human genome into nucleosomes? How has evolution solved the problem of producing such a large number of prote

Both global and regional systolic function are to be checked. Global measures include ejection fraction, stroke volume, end systolic volume. (For measurement of systolic function u

Q. Complications during angina pectoris? It is a symptom giving a warning of impending myocardial infarction, sudden cardiac death or even ischemic necrosis of the brain leadin

Describe several factors which affect Productivity in Medical Transcription. Definition of Medical Transcription Show the various factors thataffect Productivity in Medi

How are the bacteria and the archaea different from all the other cellular microbes? -They have cell walls? -They can move? -They reproduce asexually? -They have no nucleus?

Antibody Structure: An antibody molecule consist of two alike light chains ( 220  amino acids each) ad two similar heavy chains (about  440-450  amino acids each) held together

Describe how the structure of chromatin and chromosomes facilitates the following functions: a) DNA packaging. b) Regulation of gene expression.  c) Replication at the

Merits of Micro Propagation The special merits of micro propagation are: 1. It considerably increases the rate of multiplication 2. High rate of multiplication can be ma

Q. Are there diverse proteins made by the same total number of amino acids? Diverse proteins with the same total number of amino acids may exist. In such cases the discriminati