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  2. List of genetic codes - Wikipedia

    en.wikipedia.org/wiki/List_of_genetic_codes

    The euplotid nuclear code; The bacterial, archaeal and plant plastid code; The alternative yeast nuclear code; The ascidian mitochondrial code; The alternative flatworm mitochondrial code; The Blepharisma nuclear code [4] The chlorophycean mitochondrial code (none) (none) (none) (none) The trematode mitochondrial code; The Scenedesmus obliquus ...

  3. Genetic code - Wikipedia

    en.wikipedia.org/wiki/Genetic_code

    Three main hypotheses address the origin of the genetic code. Many models belong to one of them or to a hybrid: [88] Random freeze: the genetic code was randomly created. For example, early tRNA-like ribozymes may have had different affinities for amino acids, with codons emerging from another part of the ribozyme that exhibited random variability.

  4. Human genome - Wikipedia

    en.wikipedia.org/wiki/Human_genome

    [4] [3] The human Y chromosome, consisting of 62,460,029 base pairs from a different cell line and found in all males, was sequenced completely in January 2022. [5] The current version of the standard reference genome is called GRCh38.p14 (July 2023). It consists of 22 autosomes plus one copy of the X chromosome and one copy of the Y chromosome.

  5. Lists of human genes - Wikipedia

    en.wikipedia.org/wiki/Lists_of_human_genes

    •List of human protein-coding genes page 3 covers genes MTMR4–SLC17A7 •List of human protein-coding genes page 4 covers genes SLC17A8–ZZZ3 NB: Each list page contains 5000 human protein-coding genes, sorted alphanumerically by the HGNC-approved gene symbol. Follow the Python code link for information about updates to the list of genes ...

  6. Genotype - Wikipedia

    en.wikipedia.org/wiki/Genotype

    Epistasis is when the phenotype of one gene is affected by one or more other genes. [21] This is often through some sort of masking effect of one gene on the other. [ 22 ] For example, the "A" gene codes for hair color, a dominant "A" allele codes for brown hair, and a recessive "a" allele codes for blonde hair, but a separate "B" gene controls ...

  7. XY sex-determination system - Wikipedia

    en.wikipedia.org/wiki/XY_sex-determination_system

    In humans, most mammals, and some other species, two of the chromosomes, called the X chromosome and Y chromosome, code for sex. In these species, one or more genes are present on their Y chromosome that determine maleness. In this process, an X chromosome and a Y chromosome act to determine the sex of offspring, often due to genes located on ...

  8. Humans are 60 percent the same as chickens in one ... - AOL

    www.aol.com/article/2016/05/10/humans-are-60...

    For example, in a recent TED talk, physicist and entrepreneur Riccardo Sabatini demonstrated that a printed version of the entire human genetic code would occupy some 262,000 pages, or 175 large ...

  9. Zygosity - Wikipedia

    en.wikipedia.org/wiki/Zygosity

    Schematic karyogram of a human, showing a diploid set of all chromosomes, except in case of the sex chromosomes in males (bottom right), where there is an X chromosome and a much smaller Y chromosome, which does not have all the genes that the X chromosome has, making a male hemizygous for those genes.