A bacterium synthesizes DNA from each replication fork at a rate of 1000 nucleotides per second. This bacterium completely replicates its circular chromosome by theta replication in 30 min. How many base pairs does the chromosome contain

180,000 nucleotide pairs = 180 kilobase pair (kbp) =  0.18 Megabase pairs (Mbp)

Explanation:  

Synthesis rate = 1,000 nucleotides (nts) x second

1 minute = 60 seconds  

30 minutes = 60 x 30 = 1,800 seconds

>> 1,800 seconds x 1,000 nuleotides per second = 180,000 nts  

A typical bacterial genome contains approximately 5 Mbps of DNA that conforms a circular chromosome localized in the cytoplasm. In consequence, in this case the bacterial genome is small (0.18 Mbp).

golgi body just took the test on edge

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.