Bacillus thuringiensis is used to control

Bt crops are genetically modified to contain a bacterial gene from Bacillus thuringiensis. What advantage does this gene give to the plant?Provides mineralsProtection from bacteriaProtection from insectsIncreases rate of growth2Which of the following is an advantage of Bt crops?Does not kill pests that drink cell sap rather than consume the plant tissueResistance to the toxin may developKnock-on effect on the food chainMinimises the need for chemical pesticides3What is the best definition for ‘biological control’?Genetically modifying plants to produce toxins against pestsUsing chemical pesticides to control pestsUsing the pests’ own natural predators to control themUsing fertilisers to provide essential minerals to the soil4What is a disadvantage of using inorganic fertilisers?They add essential minerals to the soilThey can be washed away into water systemsThey can kill pestsThey improve plant growth

Evaluate the role of B. thuringiensis in agriculture:*1 pointB. thuringiensis has no impact on agriculture.It is used exclusively in animal feed production.B. thuringiensis is employed for its insecticidal properties.It competes with traditional pesticides without any unique benefits.

Bacillus thuringenensis is an example of __________ of pests.Question 3Select one:a.biological controlb.chemical controlc.mechanical control

How did the scientists transfer the gene from Bacillus thuringiensis to maize plants?Genes are added only once the plant is developed by injecting enzymes are used to both remove unwanted and insert desired genes.Genes are added early on in the development process by gene splicing. Enzymes are used to both remove unwanted and insert desired genes.The genes of Bt toxin can only be added to certain plants, by spraying them with the Bt toxin gene.Genes are added only in the late development process by gene splicing. Enzymes are used to both remove and inserted genes.I DON'T KNOWSUBMIT ANSWER

Insects can be both useful and harmful to crop plants. Insects such as bees pollinate or cross pollinate flowers. Some insects eat crops and other insects eat the insects that eat crops.Corn borers are insects that eat maize plants. A toxin produced by the bacterium Bacillus thuringiensis kills insects. Scientists grow Bacillus thuringiensis in large containers. The toxin is collected from the containers and is sprayed over maize crops to kill corn borers.A company has developed genetically modified (GM) maize plants. GM maize plants contain a gene from Bacillus thuringiensis. This gene changes the GM maize plants so that they produce the toxin.How did the scientists transfer the gene from Bacillus thuringiensis to maize plants?Genes are added only once the plant is developed by injecting enzymes are used to both remove unwanted and insert desired genes.Genes are added early on in the development process by gene splicing. Enzymes are used to both remove unwanted and insert desired genes.The genes of Bt toxin can only be added to certain plants, by spraying them with the Bt toxin gene.Genes are added only in the late development process by gene splicing. Enzymes are used to both remove and inserted genes.I DON'T KNOWSUBMIT ANSWER