Transgenic Plant MCQs

Question 1

In a __________ protocol, bacteria with engineered abilities to detoxify pollutants are intentionally released in an area.

Accepted Answer

bioremediation

Answer

microcosm establishment

Answer

mibridization

Answer

rhizosecretion

Question 2

The controversy regarding the use of Bt corn is that it

Accepted Answer

both (a) and (b)

Answer

is potentially harmful to monarch butterflies

Answer

is a potential allergen to humans

Answer

can contaminate groundwater

Question 3

Metabolic interference is a term used to describe a method to metabolize a compound and prevent the synthesis of something that is normally produced. What compound(s) have been targeted for metabolic interference in tomato?

Accepted Answer

Both (a) and (b)

Answer

ACC (1-aminocyclopropane-1-carboxylic acid)

Answer

SAM (S-adenosylmethionine)

Answer

AOA (aminooxyacetic acid)

Question 4

Starch content of potatoes can be increased by using a bacterial gene, known as

Accepted Answer

ADP glucose pyrophosphorylase gene

Answer

sucrose phosphate synthase gene

Answer

polygalactouranase gene

Answer

none of the above

Question 5

Which tropical fruit crop has been successfully engineered to be protected against a lethal virus?

Accepted Answer

Papaya

Answer

Passion fruit

Answer

Mango

Answer

Lychee

Question 6

Which of the following metabolites are implicated in stress tolerance?

Accepted Answer

Both (a) and (b)

Answer

Proline

Answer

Betaines

Answer

Citrate

Question 7

Which of the agricultural challenges below cannot be solved with transgenic techniques?

Accepted Answer

Public preference for organic vegetables

Answer

Crops are damaged by frost

Answer

Crops are killed by a virus

Answer

Public concern about safety of synthetic pesticides

Question 8

Which of the following statements is true regarding genomics?

Accepted Answer

All of the above

Answer

Plant genomics lags behind similar efforts in animals and microorganisms

Answer

Researchers can make use of genomic information even if the entire genome of an organism is not known

Answer

Researchers are busy in trying to determine the genome of the potato plant

Question 9

Which of the following gene is responsible for resistance against chilling?

Accepted Answer

Glycerol 1 phosphate acyl transferase

Answer

Polygalactouranase

Answer

ACC deaminase

Answer

Sucrose phosphate synthase gene