The Graph Below Shows the Normal Concentration of Morphogens a and B

question 58

Multiple Choice

The graph below shows the normal concentration of morphogens A and B throughout a Drosophila embryo.

If morphogen B is injected into the head end of an embryo,the embryo is likely to develop

• A) normally.
• B) a second tail at the head end.
• C) a second head at the tail end.
• D) two heads at the head end.

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Definitions:

Integrated Pest Management

Integrated pest management (IPM) is an ecological approach to controlling pests, using a combination of techniques and strategies to minimize environmental impact and pesticide use.

Crop Losses

Reduction in the expected yield of agricultural products due to factors like pests, diseases, and extreme weather.

Pesticides

Chemicals used to kill pests, including insects, rodents, fungi, and unwanted plants (weeds), widely applied in agriculture to protect crops.

Cultivation Practices

The methods and techniques used in farming and agriculture to grow crops and raise livestock.