Why the packaging of DNA is necessary: A. The bacterium E. coli is a Gram-negative rod that is 1μM x 2μM. Each E. coli cell contains a chromosome of 4 x 106 bp of double-stranded DNA. Since 1 kilobase pair (kbp) of double-stranded DNA is 0.340μM in length, what is the length of the E. coli?

The RecBCD enzyme of Escherichia coli is a helicase-nuclease that initiates the repair of double-stranded DNA breaks by homologous recombination. It also degrades linear double-stranded DNA, protecting the bacteria from phages and extraneous chromosomal DNA.

Explanation:

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above