# Questão 49038a56-a4 — Inglês

> Questão de múltipla escolha com gabarito, do acervo do Dicas do ENEM.
> Página com a questão respondível: https://dicasdoenem.com.br/questao/49038a56-a4

- **Código:** 49038a56-a4
- **Disciplina:** [Inglês](https://dicasdoenem.com.br/disciplina/16-ingles)
- **Área:** [Linguagens](https://dicasdoenem.com.br/area/linguagens)
- **Ano:** [2015](https://dicasdoenem.com.br/ano/2015)
- **Instituição:** Universidade Estadual Paulista
- **Assuntos:** Interpretação de texto | Reading comprehension
- **Nível:** Difícil
- **Gabarito:** alternativa C

## Enunciado

GM wheat no more

pest-resistant than ordinary crops, trial shows

GM wheat designed to repel aphids is no more effective at repelling
the bugs than standard varieties a major field trial has revealed

![Imagem da questão de Inglês, UNESP 2015, Interpretação de texto | Reading comprehension](https://dicasdoenem.com.br/imagens/eb/eb60ab9163340714f7c422f3a045328158ede75b3fe74935e84d6ebb79dc5c04.png)

Ian Sample

June 25, 2015

A major field trial of GM wheat that is designed to
repel aphids (small insects) has found the crop is no better
protected against the pests than conventional wheat. The
results come from two years of trials that compared aphid
attacks on standard wheat plants with those suffered by a
GM version modified to release a natural aphid repellent.

Scientists created the GM wheat strain in the hope
that it would deter aphids, which devour the crops and can
leave them with infections. They modified the wheat to
produce a natural pheromone which aphids release when
under attack from predators. The “aphid alarm” makes
the bugs flee to safety. Aphids are not the only organisms
that release the odour though. More than 400 plants have
evolved to secrete the same substance, called E-betafarnesene,
or EBF, including peppermint. The chemical
doubles up as an attractant for some insects that kill
aphids, such as parasitic wasps.

Prior to the field trial, lab tests at Rothamsted found
that the pheromone worked as a highly-effective aphid
repellent. The work bolstered researchers’ hopes that
the trial would demonstrate the crop’s resilience against
aphids in the wild. An aphid-resistant wheat crop could
have huge benefits for farmers and the environment
because the plants would no longer need to be sprayed
with insecticides.

“The disappointing thing is that when we tested it in
the field, we didn’t find any significant reduction in aphid
settlement in the test plots,” said Toby Bruce, who worked
on the trial. Details of the trial are published in the journal
Scientific Reports.

(www.theguardian.com. Adaptado.)

The field tests with the GM wheat proved ineffective
because

## Alternativas

- **A)** the crop was environmentally unsafe.
- **B)** the wheat was infected by EBF
- **C)** they did not display the expected outcome. ✔ **correta**
- **D)** insecticides could be replaced by pheromones.
- **E)** the EBF pheromone acted as an actual aphid repellent.

## Resposta correta

Alternativa **C**.

## Como citar

Dicas do ENEM. Questão 49038a56-a4. Disponível em: https://dicasdoenem.com.br/questao/49038a56-a4