A wave has a speed of 3.0 x 108 m/s and a frequency of 3.0 x 10 20 Hz. What is the wavelength and what wave is it?

What must happen before meiosis can begin? a. four gametes must be produced b. the four tetrads must be pulled apart c. dna doubles and produces sister chromatids d. the cell membrane pinches together

Gene expression is the activation of a gent that results in a question 1 options: protein dna mitochondria

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes