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82786
Gregor Mendel
Descrição
Biology Mapa Mental sobre Gregor Mendel, criado por thanh tran em 11-05-2013.
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biology
biology
Mapa Mental por
thanh tran
, atualizado more than 1 year ago
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Criado por
thanh tran
mais de 11 anos atrás
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Resumo de Recurso
Gregor Mendel
Who was he?
A monk
Studied variation and inheritance of pea plants
Published in 1866 but few people read it and even then, most did not understand it
Gained recognition 40 years after the paper was published
What did he find out?
Inheritance was not due to the blending mechanism but inheritance factors.
The cells in each pea plant has 2 inheritance factors for each characteristic
each haploid gamete (pollen grain/egg) only carries 1 inheritance factor for each characteristic
offspring could get dominant or recessive characteristic
Chromosomes, Alleles and Genes
DNA governs inheritance of characteristics
DNA carries genetic information
It is coiled into structures called CHROMOSOMES and is found in the nucleus of the cell
Each pair of chromosomes have the same genes although each gene may be in different forms called ALLELES
Each allele in a gene codes for the same characteristic but for a slightly different version of it
A small section of DNA is a GENE and codes for a particular characteristic
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