Answer:
Bacterial DNA is a double-stranded helix that has to separate its strands during replication. The unwinding of DNA strands at the replication fork creates twists farther down the helix that need to be relaxed by DNA gyrase. Ciprofloxacin inhibits this enzyme to block DNA synthesis and stop the deadly bacteria from growing.
Explanation:
DNA which stands for deoxyribonucleic acid is the molecules that stores genetic information in most living organisms. For successive reproduction to take place as well as growth to occurs in organisms, the genetic information stored in the DNA must be copied into new cells. This is achieved through the process of DNA replication.
DNA is a double-stranded molecule that is helical in shape. For replication to occur, the double strands has to be separated so that the information stored within can be accessed and then copied. DNA helicases are enzymes which are essential during DNA replication because they separate double-stranded DNA into single strands allowing each strand to be copied. The unwinding of DNA strands at the replication fork creates twists farther down the helix that need to be relaxed otherwise, the DNA strands will break. The enzyme responsible for relaxation these twists is known as DNA gyrase. Thus, any drug like Ciprofloxacin than inhibits DNA gyrase will block the DNA replication process in bacteria thereby stopping the growth of the bacteria.
Answer:
60,000 buffalo
Explanation:
This question is incomplete, I attached the options.
35,000
55,000
60,000
65,000
Buffalo numbers in the study area were estimated using total aerial photographic counts, the estimation was made it in Mara Serengeti ecosystem (25 000 km2), buffalos have other problems apart of bubonic plague, like climate change, competition, disease, food limitation, land-use change, predation.
Assume the population growth of Serengeti buffalo graph, before the rinderpest there was a capacity of 50,000 buffalos, but there was a bubonic plague epidemic, then two years and half, only there were a capacity less than 30,000.
After the virus was eliminated the graph show growth, in 6 years there were more than 60,000 buffalos, in more eleven-year, there were exactly 60,000 buffalos.
“The person says above is the answer!”
Answer:
this is a common ... saw incredible similarities between birds and the theropod dinosaurs (especially ... Like all other reptiles, birds have scales (feathers are produced by tissues similar to ... for theropods are often more serious for the "thecodont" pseudo-hypothesis.
Explanation:
