Examlex
The histone proteins are among the most slowly evolving proteins. For example, a histone protein called histone H4 in cows and peas differs by only 2 amino acids among a total of about 100. Suggest a reason why histone proteins evolve so slowly.
Single-Parent Homes
Households headed by a single individual who is responsible for raising children.
School Achievement
The level of academic performance and success achieved by an individual within an educational environment.
Family Income
The total amount of money earned by members of a family, contributing to their household.
Gay Parents
Refers to homosexual individuals or couples who are raising children in a family setting.
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