if the template stand of DNA has the following sequence of nucleotides: AAGCGT, the sequence of nucleotides in the mRNA will be

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

Florian discovers a rock that is broken into pieces. each piece has several bands. which type of rock does florian predict these pieces will change into when subjected to heat and pressure? igneous magma metamorphic sedimentary

What must be true for natural selection to heppen