What is a pedigree?
a chart that tracks which members of a family have a particular trait
a geneticist who studies the inheritance of traits in humans
an allele passed from parent to child on a sex chromosome
a picture of all of the chromosomes in a cell
@cas_fangirl_14

Why is the huronian supergroup rock formation particularly interesting to scientists? because it looks like a cross-section of a giant, stone encyclopedia because it formed during the period when oxygen began to accumulate in the atmosphere because it contains unusually large amounts of oxygen and sulfur because it dramatically altered the planet's development when it first formed