inheritance terms

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Last updated 7:09 AM on 8/19/23
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8 Terms

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hemizygous
the condition of a gene where only one set of chromosomes from a chromosomal pair is observed. 

(only in males where it is on sex linked x gene)
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DNA methylation
Process by which a methyl group is added to DNA molecules, often at cytosine residues, resulting in changes in gene expression without altering the DNA sequence.
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epigenetics
The study of heritable changes in gene expression without altering the DNA sequence. It involves modifications to DNA or associated proteins that can be passed on to future generations.
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histones
a protein that provides structural support for a chromosome. Each chromosome contains a long molecule of DNA, which must fit into the cell nucleus. To do that, the DNA wraps around complexes of histone proteins, giving the chromosome a more compact shape.
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heterozygous
having different alleles for a particular trait. 
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homozygous
having the same alleles for a particular trait.
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genotype
the genetic makeup of an organism
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phenotype
an individual's observable traits