What is the role of cry genes?
What is the role of cry genes?
The insecticidal crystal protein (Cry) genes of Bacillus thuringiensis are a key gene resource for generating transgenic crops with pest resistance. However, many cry genes cannot be expressed or form crystals in mother cells.
What is the function of Cry protein?
This protein is a member of the alpha pore forming toxins family, which gives it insecticidal qualities advantageous in agricultural pest control. Each Cry protein has some level of target specificity; Cry6Aa has specific toxic action against coleopteran insects and nematodes.
What is the meaning of cry gene?
Answer: Cry genes are present in Bacillus thuringiensis. It codes for certain toxins that act as a poison to some insects, thereby, providing resistance to the plants against them and these genes are responsible for creating crystalline proteins that help to kill the pests.
What are cry genes and explain with three examples?
There are three different types of cry genes. These genes are responsible for the production of crystalline proteins which helps in the destruction of the pests. The cry genes are cry IAC, cry IAB and cry IIAB. The gene cry IAB is responsible for the control of the corn borer pest.
What are cry genes how it is different from cry?
Solution : Cry is the gene which codes for Bt-toxin which is an insecticidal protein ,while CRY is the protein coded by cry genes .
What is meant by cry gene State its various types and effects?
The genes which encode cry proteins called Bt-toxin genes have been isolated from B. Thuringiensis and incorporated in many crop plants such as Bt cotton, Bt corn etc. to provide insect pest resistance. There are three different types of cry genes they are cry IAB, cry IAC and cry IIAB.
What is true for Cry genes?
Answer: Cry proteins are poisonous proteins called insecticidal proteins which are secreted in crystal form by Bacillus thuringiensis during a specific growth process. The toxin is coded by a gene called cry. The genes which encode cry proteins called Bt-toxin genes have been isolated from B.
What is CRY gene in which organisms are they present?
Cry genes codes for a toxin which is poisonous to some insects thus giving resistant to the plants. They are present in bacterium Bacillus thuriengiensis.
What are cry genes and in which organism they are present?
What are Cry genes and in which organism they are present?
What are Cry genes which organisms produces these?
Solution : These are the genes found in bacteria Bacillius thuringiensis, which produce an insecticidal crystal protein called as cry protein.
What are cry genes which organisms produce these?
Cry protein is a toxic crystal protein encoded by cry gene which is toxic to certain insects. It is produced by Bacillus thuringiensis bacteria in an inactive form. Activation of cry protein takes when ingested by insects, due to the alkaline ph of guts.