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How can 2 plants cells from the same plant have different structures and functions?
Different genes are expressed (see - epigenetics).
What is the relationship between evolution and epigenetics?
A few years ago, biologists would have said that the relation between epigenetics and evolution was minimal, given that there was no reason to think, at the time, that epigenetic effects lasted more than a couple of generations. Now, however, it is becoming more apparent that epigenetic factors can indeed influence the way allele frequencies develop over the generations, and thus have a lasting impact on the evolution of a population.
Does inheritance of acquired characteristics express the concept of natural selection?
No. Natural selection is the differential reproductive success of varying inherited traits. Acquired traits do little to affect the inheritance of traits, except through epigenetics.
Who discovered epigenetics?
Epigenetics (as in "epigenetic landscape") was coined by C. H. Waddington in 1942 as a portmanteau of the words genetics and epigenesis.[4] Epigenesis is an old[5] word which has more recently been used (see preformationism for historical background) to describe the differentiation of cells from their initial totipotent state in embryonic development. When Waddington coined the term the physical nature of genes and their role in heredity was not known; he used it as a conceptual model of how genes might interact with their surroundings to produce a phenotype.I would like you to know that I copied this off of Wikipedia. Just giving them the credit they deserve.
The one gene one polypeptide theory states that?
The one gene-one polypeptide theory states that for every gene one protein is synthesized n a cell. This theory has lost favor with the discoveries of post-translational modification, protein splicing and epigenetics, all of which support the production of multiple protein products from a single gene.
What is epigenetics as it relates to psychology?
Epigenetics deals with the nature vs nurture controversy in psychology.
The study of how environmental factors influence the expression of genes without altering the DNA is known as?
its called epigenetics
What can influence your influence?
environmental factors e.g. epigenetics
Why is it important for DNA to condense before dividing?
DNA condensation is used to block the transcription and translation of a number of genes. It is part of "epigenetics" by condensation of the DNA the polymerase can no longer bind.
What factors influence epigenetics?
Extreme environmental conditions influence epigenetics. There are certain chemical compounds adhering to the genetic material but not altering the DNA sequence during conditions of stress to the organism. For example proline protects the plants from wilting during conditions of drought.
How can 2 plants cells from the same plant have different structures and functions?
Different genes are expressed (see - epigenetics).
What are the release dates for Nova ScienceNow - 2005 T- Rex Blood Epigenetics Kryptos Arlie Petters Profile 2-5?
Nova ScienceNow - 2005 T- Rex Blood Epigenetics Kryptos Arlie Petters Profile 2-5 was released on: USA: 24 July 2007
What has the author Hasan Khatib written?
Hasan Khatib has written: 'Livestock epigenetics' -- subject(s): Genetics, Embryology, Epigenesis, Livestock
What genetic factors might be responsible for a change in an organism's body plan?
The importance of genetic factors has recently been at least halved by the discovery of Epigenetics.
Which idea did lamarck propose that was rejected by his fellow scientists?
That organisms pass on traits acquired in their lifetimes. It was rejected in favour of Darwinian evolution, in which species and not individuals evolve, but Larmarckism is valid to a point where epigenetics is concerned.
What has the author Cornelis Murre written?
Cornelis Murre has written: 'Epigenetic regulation of lymphocyte development' -- subject(s): Lymphocytes, Genetic regulation, Epigenetics, Genetic Epigenesis
What is the relationship between evolution and epigenetics?
A few years ago, biologists would have said that the relation between epigenetics and evolution was minimal, given that there was no reason to think, at the time, that epigenetic effects lasted more than a couple of generations. Now, however, it is becoming more apparent that epigenetic factors can indeed influence the way allele frequencies develop over the generations, and thus have a lasting impact on the evolution of a population.
