Genetics, Development, and Psychology: Key Concepts

Posted by on Feb 20, 2025 in Podiatry | 0 comments

Behavior Genetics and Human Development

Behavior geneticists: study how heredity and environment contribute to human differences.

Genes: Biochemical units of heredity that make up chromosomes: the threadlike coils of DNA.

Gene expression: The code for creating the proteins that form our body’s building blocks.

Chromosome: Threadlike structure made largely of DNA molecules.

DNA: A spiraling, complex molecule containing genes.

The Human Genome

The human genome contains approximately 20,000 to 25,000 genes.

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Understanding Chromosomes, Inheritance, and Genetic Traits

Posted by on Jan 24, 2025 in Podiatry | 0 comments

Similarities and Differences in Homologous Chromosomes

Prior to crossing over, in what ways are homologous chromosomes similar? In what ways do they differ?

  • Homologous chromosomes are chromosome pairs, one from each parent, that are similar in length, gene position, and centromere location.
  • They have the same genes but not necessarily the same alleles. For example, they could both carry the gene for hair color, but one might have the allele for brown hair while the other has the allele for blonde hair.
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