PATHOLOGY

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PATHOLOGY MCQ

GENETICS AND DISEASE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Scientists have taken genes from a species of bacteria that is pathogenic to several insects and inserted the genes into potato plants. The bacterial genes cause a cell to produce toxins that kill the insects. As the potato plants grow, every cell of the plant contains the toxin-producing genes. This makes the potato resistant to attack by crop pests.Which of the following is a limitation of this new technology?
A
The genetically altered potato plants will kill off so many insects that companies that manufacture pesticides will soon go out of business.
B
Over time, insects are likely to develop resistance to the bacterial toxin.
C
The introduced gene will cause more diversity in the potato’s genome, thus causing the potato plant to become extinct.
D
There are no foreseen limitations with inserting bacterial genes into crop plants.
Explanation: 

Detailed explanation-1: -Genetic Engineering For example, genetic engineering may involve adding a gene from one species to an organism from a different species to produce a desired trait.

Detailed explanation-2: -What would a scientist need to do before he or she could remove a gene from a chromosome? The scientist must know the sequence of the gene. Which restriction enzyme(s) would you use to cut out the p53 gene?

Detailed explanation-3: -Transgene: A gene from one organism inserted into another organism by recombinant DNA techniques. Transgenic organism: An organism resulting from the insertion of genetic material from another organism using recombinant DNA techniques.

Detailed explanation-4: -Conjugation is a process by which one bacterium transfers genetic material to another bacterium through direct contact. During conjugation, one of the bacterial cells serves as the donor of the genetic material, and the other serves as the recipient.

There is 1 question to complete.
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