Chromosomes, Genes, Alleles, and Karyotypes- lesson 3
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11 Terms
Proteins
What DNA codes for.
Chromosomes
An enter chain of DNA along with a group of stabilizing proteins.
When the cell is reproducing.
When and why a cell would need to exist in a condensed form.
23 pairs; 46 chromosomes
How many pairs of chromosomes a human has
Chromatin
When DNA exists as condensed fibres during interphase.
Sex chromosomes
Or pair of the human chromosomes exist as
Homologous chromosomes
Similar but not identical to each other.
Gene
A small segment of DNA that governs the expression of a trait that is passed on to offspring.they share information to produce a protein.
Allele
A different form of the same gene. There are two _____ for eye colour - brown and blue.
Karyotype
A photograph of homologous chromosomes from a cell.