Paragraphs 4-5 contribute to the development of ideas in the text because they explain how the gene drive changes mosquitoes’ DNA, as stated in option B.
<h3>What are paragraphs 4-5 about?</h3>
After reading paragraphs 4-5 of the text "Gene editing wiped out a population of mosquitoes in lab tests," we can tell they contribute the development of ideas by explaining how the gene drive works.
According to the information in paragraphs 4-5, the gene drive is used to change mosquitoes' DNA so that the female mosquito will not bite or procreate. By doing so, scientists would help prevent the spread of malaria, since it is through biting that the female mosquito transmits the disease.
With the information above in mind, we can choose option B as the correct answer.
The missing paragraphs 4-5 are the following:
The researchers changed the mosquitoes’ genes with a gene drive. Gene drives use the molecular “scissors” known as CRISPR/Cas9 to copy and paste themselves into an organism’s DNA at precise locations. They’re designed to break the rules of inheritance. They can quickly spread a genetic tweak to all offspring.
The new gene drive breaks a mosquito gene called doubles∈x. Female mosquitoes that inherit two copies of the broken gene develop like males. They are unable to bite or lay eggs. Being unable to bite means they can’t spread the malaria parasite. Males and females that inherit only one copy of the disrupted gene develop normally and are fertile. Males don’t bite, whether they have the gene drive or not.
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A living, breathing audience makes speechmaking one of the most personal, exciting, and empowering forms of communication
• Speakers who fail to connect with their audiences will also fail to achieve their purpose; your purpose should not be fixed or inflexible; the more your learn about your audience, the more likely you will modify your purpose in small ways or even change it radically
What first prompted Douglass to think about running away to the North is this:
- He heard two Irishmen say that he deserved freedom.
<h3>Who was Frederick Douglass?</h3>
Frederick Douglass was an African slave who was subjected to years of slavery in America. He longed for freedom because he was unhappy with the sad conditions he faced.
What first prompted his desire to escape was whne he heard the conversation of the Irishmen who said that he did not deserve subjection to slavery.
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