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Table 20-4
Poverty Thresholds in 2002,by Size of Family and Number of Related Children Under 18 Years
[Dollars]
Source: U.S.Bureau of the Census,Current Population Survey.
-Refer to Table 20-4.What is the poverty line for a family with one 35-year-old adult and one child?
Histones
Proteins that package and order DNA into structural units called nucleosomes, playing key roles in gene regulation.
Purine
A type of nitrogenous base found in DNA and RNA, including adenine and guanine, which pairs with pyrimidine bases in the genetic code.
Pyrimidine
One of the two types of nitrogenous bases found in nucleic acids, including cytosine, thymine (in DNA), and uracil (in RNA).
DNA Ligase
Enzyme that seals strand breaks or gaps in double-stranded DNA.
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