Help! two quick questions! Because every normal body cell contains homologous pairs
of chromosomes, it holds 2 alleles of each gene.

1. What are alleles?

2. Where do these 2 different alleles come from?

In 1992, hurricane andrew left a wake of destruction through florida. one victim of the storm was a reptile-breeding facility. over 900 burmese pythons were set free, and today thousands of pythons live in florida. these pythons are an invasive species, or a harmful species not native to the region. 1. what impacts do you think the burmese pythons might have on local ecosystems

What element is able to combine with itself and hydrogen to form large molecules ?

What is the identity of the planets?