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Evolutionary Computation
Evolutionary Computation

... simply to maximize the number of 1’s in a bitstring. (Also “Onemax”) Building Block: in the traditional GA, a collection of bits and their corresponding positions (i.e., a hyperplane) such that (1) individuals having those bits in those positions tend to have higher fitness; (2) the number of bits i ...
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lecture 11, part 1, beyond mendel, 042809c
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Mendel and His Peas - Middle School: BLRA
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***********X***********X*******X*******X***X***X***X***X***X***X
***********X***********X*******X*******X***X***X***X***X***X***X

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meiosis - The Biology Primer
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Chapter 23: Patterns of Gene Inheritance
Chapter 23: Patterns of Gene Inheritance

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meiosis_and_sexual_life_cycles
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... randomly at metaphase I of meiosis. In independent assortment, each pair of chromosomes sorts maternal and paternal homologues into daughter cells independently of the other pairs. The number of combinations possible when chromosomes assort independently into gametes is 2n, where n is the haploid nu ...
In heterozygote, one allele may conceal the
In heterozygote, one allele may conceal the

... one copy of a gene for each trait. A particular gamete could have either the recessive or dominant allele for a given trait, but not both. -Consequently, one of the alleles that governed each trait is inherited from female parent and the other allele is inherited from male parent ...
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X-inactivation



X-inactivation (also called lyonization) is a process by which one of the two copies of the X chromosome present in female mammals is inactivated. The inactive X chromosome is silenced by its being packaged in such a way that it has a transcriptionally inactive structure called heterochromatin. As nearly all female mammals have two X chromosomes, X-inactivation prevents them from having twice as many X chromosome gene products as males, who only possess a single copy of the X chromosome (see dosage compensation). The choice of which X chromosome will be inactivated is random in placental mammals such as humans, but once an X chromosome is inactivated it will remain inactive throughout the lifetime of the cell and its descendants in the organism. Unlike the random X-inactivation in placental mammals, inactivation in marsupials applies exclusively to the paternally derived X chromosome.
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