Skin cells are lost daily even without injury. which best describes the purpose of the cell cycle for skin cells in this circumstance? a. reproduction b. repair c. synthesis d. growth

What are the steps of how energy is transformed in plant cells?

Cells are adapted to preform specific functions. which of the following terms refers to this capability?

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.