170897
The DNA of Ti-plasmid which is obtained from Agrobacterium tumefaciens is used in genetic engineering this DNA is also called:
1 A-DNA
2 B-DNA
3 Z-DNA
4 T-DNA
Explanation:
Exp: t-DNA:- The $\mathrm{t}$-DNA is the transferred DNA of the tumor-inducing (Ti) plasmid of same species of bacteria such as Agrobacterium tumefaciens. This plasmid is widely used in the creation of transgenic plants by delivering the necessary DNA payload. B-DNA :- B-DNA is the most metabolically stable DNA. It exist at high relative humidity i.e. more than $90 \%$ and high salt concentration. When relative humidity decrease the B-DNA changes gradually into A-DNA, C-DNA, and D-DNA. It is right handed i.e. clockwise and number of base pair is 10 . Z-DNA:- Discovered by rich sugar phosphate backbone zig zag number of base pair is 12 . A-DNA:- It is a right handed double helix similar to the B-DNA form.
Haryana PMT-2002
Biotechnology and its Applications
170904
Pesticides include :
1 Insecticide only
2 fungicides, herbicides, insecticides nematicides and rodenticides
3 insecticides, nematicides and rodenticide
4 herbicides insecticides and nematicides
Explanation:
Exp: Pesticides are substances used to kill or repel pests. The pesticides are of the following types- Fungicides - that kill the fungi pathogen Algicides - that kill algae Herbicides or weedicides - that kill herb or weed Insecticides - that kill insects Nematicides - that kill Nematodes Rodenticides - that kill Rodents (rats and mice)
BCECE-2002
Biotechnology and its Applications
170906
The pesticide used as preventive measure in buildings is :
1 aldrin
2 dieldrin
3 endrin
4 DDT
Explanation:
Exp: Aldrin is a synthetic organochlorine pesticide, and used as a broad-spectrum soil insecticide for protection of food crops and as seed dressing for the control of pests such as ants and termites. - Aldrin was used in buildings to protect against insects, such as termites. - Organochlorines and chlorinated hydrocarbon are an important class of pesticides. The important ones are DDT, BHC, aldrin, dieldrin and endrin. They are persistent, fat soluble and show biomagnifications and hence, are harmful to higher tropic level of organism.
MGIMS Wardha-2003
Biotechnology and its Applications
170908
Tobacco plants resistant to Meloidegyne incognitia were developed using a method of cellular defence which relates to
1 Silencing the translation of specific mRNA
2 Silencing the transcription of specific mRNA
3 Activation of specific tRNA
4 Activation of specific mRNA
Explanation:
Exp: Meloidegyne incognitia is a nematode that infects the root of tobacco plants and causes reduction in yield. In all eukaryotic organisms RNA interference is method of cellular defense. Plants infected by M. incognitia show stunted growth, yellowing, marginal and tip drying of leaves resulting reduced tillering coupled with calling and rotting of roots. So, RNAi involves silencing of specific mRNA due to complementary dsRNA molecule that binds and prevent mRNA translation (silencing).
170897
The DNA of Ti-plasmid which is obtained from Agrobacterium tumefaciens is used in genetic engineering this DNA is also called:
1 A-DNA
2 B-DNA
3 Z-DNA
4 T-DNA
Explanation:
Exp: t-DNA:- The $\mathrm{t}$-DNA is the transferred DNA of the tumor-inducing (Ti) plasmid of same species of bacteria such as Agrobacterium tumefaciens. This plasmid is widely used in the creation of transgenic plants by delivering the necessary DNA payload. B-DNA :- B-DNA is the most metabolically stable DNA. It exist at high relative humidity i.e. more than $90 \%$ and high salt concentration. When relative humidity decrease the B-DNA changes gradually into A-DNA, C-DNA, and D-DNA. It is right handed i.e. clockwise and number of base pair is 10 . Z-DNA:- Discovered by rich sugar phosphate backbone zig zag number of base pair is 12 . A-DNA:- It is a right handed double helix similar to the B-DNA form.
Haryana PMT-2002
Biotechnology and its Applications
170904
Pesticides include :
1 Insecticide only
2 fungicides, herbicides, insecticides nematicides and rodenticides
3 insecticides, nematicides and rodenticide
4 herbicides insecticides and nematicides
Explanation:
Exp: Pesticides are substances used to kill or repel pests. The pesticides are of the following types- Fungicides - that kill the fungi pathogen Algicides - that kill algae Herbicides or weedicides - that kill herb or weed Insecticides - that kill insects Nematicides - that kill Nematodes Rodenticides - that kill Rodents (rats and mice)
BCECE-2002
Biotechnology and its Applications
170906
The pesticide used as preventive measure in buildings is :
1 aldrin
2 dieldrin
3 endrin
4 DDT
Explanation:
Exp: Aldrin is a synthetic organochlorine pesticide, and used as a broad-spectrum soil insecticide for protection of food crops and as seed dressing for the control of pests such as ants and termites. - Aldrin was used in buildings to protect against insects, such as termites. - Organochlorines and chlorinated hydrocarbon are an important class of pesticides. The important ones are DDT, BHC, aldrin, dieldrin and endrin. They are persistent, fat soluble and show biomagnifications and hence, are harmful to higher tropic level of organism.
MGIMS Wardha-2003
Biotechnology and its Applications
170908
Tobacco plants resistant to Meloidegyne incognitia were developed using a method of cellular defence which relates to
1 Silencing the translation of specific mRNA
2 Silencing the transcription of specific mRNA
3 Activation of specific tRNA
4 Activation of specific mRNA
Explanation:
Exp: Meloidegyne incognitia is a nematode that infects the root of tobacco plants and causes reduction in yield. In all eukaryotic organisms RNA interference is method of cellular defense. Plants infected by M. incognitia show stunted growth, yellowing, marginal and tip drying of leaves resulting reduced tillering coupled with calling and rotting of roots. So, RNAi involves silencing of specific mRNA due to complementary dsRNA molecule that binds and prevent mRNA translation (silencing).
170897
The DNA of Ti-plasmid which is obtained from Agrobacterium tumefaciens is used in genetic engineering this DNA is also called:
1 A-DNA
2 B-DNA
3 Z-DNA
4 T-DNA
Explanation:
Exp: t-DNA:- The $\mathrm{t}$-DNA is the transferred DNA of the tumor-inducing (Ti) plasmid of same species of bacteria such as Agrobacterium tumefaciens. This plasmid is widely used in the creation of transgenic plants by delivering the necessary DNA payload. B-DNA :- B-DNA is the most metabolically stable DNA. It exist at high relative humidity i.e. more than $90 \%$ and high salt concentration. When relative humidity decrease the B-DNA changes gradually into A-DNA, C-DNA, and D-DNA. It is right handed i.e. clockwise and number of base pair is 10 . Z-DNA:- Discovered by rich sugar phosphate backbone zig zag number of base pair is 12 . A-DNA:- It is a right handed double helix similar to the B-DNA form.
Haryana PMT-2002
Biotechnology and its Applications
170904
Pesticides include :
1 Insecticide only
2 fungicides, herbicides, insecticides nematicides and rodenticides
3 insecticides, nematicides and rodenticide
4 herbicides insecticides and nematicides
Explanation:
Exp: Pesticides are substances used to kill or repel pests. The pesticides are of the following types- Fungicides - that kill the fungi pathogen Algicides - that kill algae Herbicides or weedicides - that kill herb or weed Insecticides - that kill insects Nematicides - that kill Nematodes Rodenticides - that kill Rodents (rats and mice)
BCECE-2002
Biotechnology and its Applications
170906
The pesticide used as preventive measure in buildings is :
1 aldrin
2 dieldrin
3 endrin
4 DDT
Explanation:
Exp: Aldrin is a synthetic organochlorine pesticide, and used as a broad-spectrum soil insecticide for protection of food crops and as seed dressing for the control of pests such as ants and termites. - Aldrin was used in buildings to protect against insects, such as termites. - Organochlorines and chlorinated hydrocarbon are an important class of pesticides. The important ones are DDT, BHC, aldrin, dieldrin and endrin. They are persistent, fat soluble and show biomagnifications and hence, are harmful to higher tropic level of organism.
MGIMS Wardha-2003
Biotechnology and its Applications
170908
Tobacco plants resistant to Meloidegyne incognitia were developed using a method of cellular defence which relates to
1 Silencing the translation of specific mRNA
2 Silencing the transcription of specific mRNA
3 Activation of specific tRNA
4 Activation of specific mRNA
Explanation:
Exp: Meloidegyne incognitia is a nematode that infects the root of tobacco plants and causes reduction in yield. In all eukaryotic organisms RNA interference is method of cellular defense. Plants infected by M. incognitia show stunted growth, yellowing, marginal and tip drying of leaves resulting reduced tillering coupled with calling and rotting of roots. So, RNAi involves silencing of specific mRNA due to complementary dsRNA molecule that binds and prevent mRNA translation (silencing).
170897
The DNA of Ti-plasmid which is obtained from Agrobacterium tumefaciens is used in genetic engineering this DNA is also called:
1 A-DNA
2 B-DNA
3 Z-DNA
4 T-DNA
Explanation:
Exp: t-DNA:- The $\mathrm{t}$-DNA is the transferred DNA of the tumor-inducing (Ti) plasmid of same species of bacteria such as Agrobacterium tumefaciens. This plasmid is widely used in the creation of transgenic plants by delivering the necessary DNA payload. B-DNA :- B-DNA is the most metabolically stable DNA. It exist at high relative humidity i.e. more than $90 \%$ and high salt concentration. When relative humidity decrease the B-DNA changes gradually into A-DNA, C-DNA, and D-DNA. It is right handed i.e. clockwise and number of base pair is 10 . Z-DNA:- Discovered by rich sugar phosphate backbone zig zag number of base pair is 12 . A-DNA:- It is a right handed double helix similar to the B-DNA form.
Haryana PMT-2002
Biotechnology and its Applications
170904
Pesticides include :
1 Insecticide only
2 fungicides, herbicides, insecticides nematicides and rodenticides
3 insecticides, nematicides and rodenticide
4 herbicides insecticides and nematicides
Explanation:
Exp: Pesticides are substances used to kill or repel pests. The pesticides are of the following types- Fungicides - that kill the fungi pathogen Algicides - that kill algae Herbicides or weedicides - that kill herb or weed Insecticides - that kill insects Nematicides - that kill Nematodes Rodenticides - that kill Rodents (rats and mice)
BCECE-2002
Biotechnology and its Applications
170906
The pesticide used as preventive measure in buildings is :
1 aldrin
2 dieldrin
3 endrin
4 DDT
Explanation:
Exp: Aldrin is a synthetic organochlorine pesticide, and used as a broad-spectrum soil insecticide for protection of food crops and as seed dressing for the control of pests such as ants and termites. - Aldrin was used in buildings to protect against insects, such as termites. - Organochlorines and chlorinated hydrocarbon are an important class of pesticides. The important ones are DDT, BHC, aldrin, dieldrin and endrin. They are persistent, fat soluble and show biomagnifications and hence, are harmful to higher tropic level of organism.
MGIMS Wardha-2003
Biotechnology and its Applications
170908
Tobacco plants resistant to Meloidegyne incognitia were developed using a method of cellular defence which relates to
1 Silencing the translation of specific mRNA
2 Silencing the transcription of specific mRNA
3 Activation of specific tRNA
4 Activation of specific mRNA
Explanation:
Exp: Meloidegyne incognitia is a nematode that infects the root of tobacco plants and causes reduction in yield. In all eukaryotic organisms RNA interference is method of cellular defense. Plants infected by M. incognitia show stunted growth, yellowing, marginal and tip drying of leaves resulting reduced tillering coupled with calling and rotting of roots. So, RNAi involves silencing of specific mRNA due to complementary dsRNA molecule that binds and prevent mRNA translation (silencing).
