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bazaltina [42]
3 years ago
7

You are a reporter working in 2001 who's just been assigned a story on how ciprofloxacin may save the lives of Senate staff expo

sed to anthrax. Complete a short paragraph that links how DNADNA is replicated to defense against this act of bioterrorism.
Match the terms in the left column to the appropriate blanks in the sentences on the right. Terms can be used once, more than once, or not at all.

separate tensed
ligase unwinding
relaxed enhances
inhibits uniting
gyrase join
helicase

Bacterial DNA is a double-stranded helix that has to ___________ its strands during replication. The _______ of DNA strands at the replication fork creates twists farther down the helix that need to be ______ by DNA _______. Ciprofloxacin ______ this enzyme to block DNA synthesis and stop the deadly bacteria from growing.
Biology
1 answer:
Charra [1.4K]3 years ago
4 0

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.

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Consider the parts of the digestive system, particularly the place where water is removed before feces are excreted. Which organ
Phoenix [80]

Answer:

The colon.

Explanation:

The colon, also known as the large intestine is one of the major organs of the digestive system and plays a vital role in the processing of food and excretion of waste. It is divided into the ascending colon, transverse colon, descending colon and sigmoid colon.

The colon has a large surface area and plays a major role in the reabsorption of fluids and the processing and formation of waste which it pushes towards the rectum to be expelled.

Diarrhea is a condition which is characterized by frequency of bowel movements and passage of loose and watery stools. It has various causes most of which affects the normal functionality of the colon thereby limiting it's ability to reabsorb water and fluids. Such causes which affect the colon include; Bacterial infections, laxative abuse, diseases of the colon such as ulcerative colitis and Crohn's disease etc.

8 0
3 years ago
Which part of the Pakicetus anatomy most suggests that it is an ancestor of whales?
Burka [1]

Answer:

Pakicetus had an ear bone with a characteristic specific to whales and a distinctive long skull shape of a whale's.

Pakicetus

• Pakicetus was a wolf-sized animal and was a carnivore that at certain occasions consumed fish had exhibited features of its anatomy that associated it to the modern cetaceans, porpoises, whales, and dolphins.

• It had the body of a land animal, however, its head exhibited the distinctive long skull similar to a whale.

• With time, the fossils also showed that Pakicetus possessed an ear bone with a characteristic specific to whales.

Thus, pakicetus can be considered as the first whale who exhibited certain similar anatomic features like that of a whale.

Find out more information about Pakicetus anatomy here:

brainly.com/question/16395727

Explanation:

8 0
2 years ago
Water freezes in the cracks of a rock during the winter and then melts during the spring overtime what will most likely happen t
siniylev [52]

Answer:

The water would erode it breaking bits off and carrying them away

5 0
3 years ago
Heterozygotes at the sickle-cell locus produce both normal and abnormal (sickle-cell) hemoglobin (see Concept 11.4). When hemogl
Stels [109]

Answer:

In an individual's molecular and cellular level, the heterozygote alleles are preferred over the homozygote alleles. In humans, the heterozygote alleles are found at a locus of beta polypeptide subunit of hemoglobin, while on the other hand, the homozygous alleles found at a similar locus are prone to sickle cell disease.  

The individuals carrying homozygous alleles exhibit sickle-shaped RBCs and they also possess low oxygen-carrying capacity, which ultimately results in brain, kidney, or heart failure. However, in the case of heterozygous alleles, the configurations of RBCs are of two kinds, that is, normal shaped and sickle-shaped. Thus, there are not enough sickle-shaped cells to result in the condition.  

The heterozygote alleles are resistant to malaria, thus, in tropical areas, where malaria is a prime issue the heterozygote alleles are preferred over the homozygote dominant alleles as they are vulnerable to the infection and over the homozygote recessive alleles who has sickle cell disease.  

6 0
3 years ago
Question 9 Lipids and proteins can be formed from carbohydrates. Which elements do these molecules have in common that help form
Aleks [24]

Answer:

carbon if only one answer allowed, if check multiple, carbon, hydrogen, and oxygen.

Explanation:

The common elemental ingredients are carbon, hydrogen, and oxygen. They all contain the element carbon. They contain simpler units that are linked together making larger molecules.

4 0
3 years ago
Read 2 more answers
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