As DNA replication begins, enzymes separate the double stranded DNA molecule into two single strands, separating the nitrogen base pairs. What happens next? A. Each single strand of DNA serves as a template to create the new complimentary strand. Following base pair rules, free nucleotides within the cell are joined to each side of the separated DNA strands.
B. Messenger RNA provides the information necessary to join free nucleotides within the cell to the two separated DNA strands.
C. Free nucleotides within the cell are joined to the separated DNA strands in a random order increasing genetic variation in the species.
D. tranfer RNA molecules, with specific anticodons that are complimentary to the codons found in the original DNA strand, bond the correct free nucleotides in the correct order to separated DNA strands.

Which macromolecules are polymers made of nucleotides (a) fatty acids (b) nucleic acids (c) carboxylic acids (d) amino acides

Which of the following is not an example of conflict between related individuals?

With the description of the different cell walls, membranes, and associated proteins set in the students' minds, you now need to introduce them to the idea that the cell wall can also act as a foundation to build things upon. bacterial appendages require a strong foundation that will offer the support needed to move and function in a dynamic world. for example, flagella are long, whiplike protein structures that are used by many gram-positive and gram-negative bacteria for locomotion. in order to function effectively, a flagellum must be firmly anchored to the cell wall. how will you be able to get across the idea that the peptidoglycan cell wall is strong enough to support such a mechanism? with a protein rod that passes through the cell wall and protein rings used to anchor it in the membranes, these basal bodies are the rudimentary biological motors that use atp power to spin the hook and the flagella attached to it. bacterial flagella have a biological motor that spins within the cell wall and is powered by atp. this allows the flagella to spin in a whiplike motion to propel the bacterium.