Do you think the information in the text provides proof that atoms exist, or is it more evidence that supports the idea? Explain.

Could our understanding of atoms still change and develop?

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.

Which of the following statements about polysaccharides are correct? choose all that apply.cellulose is a linear, unbranched polymer of glucose monomers.starch is typically more highly branched than glycogen.cellulose is a major component of both plant and animal cells.glycogen is a storage form of glucose in animal cells.glycogen is the most abundant organic compound on earth.starch and cellulose are found in plants.