Examlex
What factor is most important in determining a star's position on the main sequence and subsequent evolution?
Genetic Diversity
The total number of genetic characteristics in the genetic makeup of a species, contributing to its ability to adapt to changing environments.
Crossing Over
The process during meiosis where two chromosomes pair up and exchange segments of their genetic material to produce new combinations of genes.
Homologous Chromosomes
Pairs of chromosomes that contain the same types of genes but can have different alleles.
Sister Chromatids
They are identical copies of a single chromosome that are connected by a centromere. Sister chromatids are formed during DNA replication and are important for the process of cell division.
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