The choice of Bt toxin gene depends on

  • Crop

  • Targeted pest

  • Both A and B

  • Only on protein of Bt toxin gene

Most of the Bt toxin genes are

  • Insect group specific

  • Pest specific

  • Weed specific

  • Bacteria specific

The Bt toxin is not coded by

  • CrylAc

  • CryllAb

  • CrylAb

  • CrylIIAc

Cotton bollworms are controlled by

  • CryIAc

  • Cry II Ab

  • Both A and B

  • Cry I Ab

Corn borers are controlled by

  • CryIAb

  • CryIAc

  • CryIIAb

  • Both B and C

The tobacco roots are infected by

  • Nematode Meloidegyne incognitia

  • Diptera beetles

  • Coleoptera fly

  • Lepidopterans

Silencing of specific mRNA due to a complementary dsRNA is called mRNA silencing. Here the source of ds RNA is

  • RNA virus

  • Mobile genetic element with RNA intermediate

  • Transposons having RNA intermediate during process of replication

  • All of these

Agrobacterium vectors carried nematode specific genes which is introduced into the host plant and suct that it produced

  • Sense and anti sense RNA

  • Only antisense RNA

  • Only sense RNA

  • Sense and antisense Protein

According to NCERT data how many recombinant therapeutics have been approved for human use and how many are marketed in India?

  • 12, 6

  • 32, 16

  • 30, 12

  • 12, 10

How many chains does proinsulin consist of?

  • Three

  • Two

  • One

  • Five

Which of the following peptides is present in only proinsulin not in insulin?

  • A

  • B

  • C

  • Both A and C

The main challenge for the production of insulin using r-DNA technologies was

  • Getting insulin assembled into a mature form

  • Getting insulin from human source

  • Getting insulin synthesized chemically in proinsulin form

  • Getting C peptide synthesized.

An American company which synthesized the DNA sequences for insulin was

  • Eli lity

  • Eili Lily

  • Ele Lily

  • Eli Lilly

For the first time, the synthesis of two DNA sequences of insulin was carried out by Eli Lilly in

  • 1972

  • 1981

  • 1983

  • 1987

Insulin chains produced by Eli Lilly using recombinant DNA technology, actually taken which of the following strain of bacteria?

  • Escherichia coli

  • Bacillus subtilis

  • Saccharomyces cerevisiae

  • Bacillus xenus

Gene therapy is not

  • An attempt to correct a gene defect

  • By which genes are inserted into an individual or embryo to take over the function of and compensate the non-functional gene.

  • Genes are inserted into a person's cells and tissues to treat a disease

  • Correction of environmental defect by inserting a gene

Which of the following is not correct about the first clinical gene therapy?

  • 1990 year

  • 5 year old kid

  • Adenosine deamide deficiency

  • Both B and C

The ADA deficiency is because of

  • Substitution

  • Inversion

  • Deletion

  • Insertion

The possible treatments of ADA deficiency are

  • Bone Marrow Transplantation

  • Enzyme replacement Therapy

  • Both

  • None of these

Which of the following therapies for ADA deficiency are not completely curative?

  • Bone Marrow Transplantation

  • Enzyme replacement Therapy

  • Both A and B

  • Both are completely curative

The first step of gene therapy would be

  • Culture of the lymphocytes from patient's blood

  • Using vector for transmitting gene

  • cDNA was prepared

  • cDNA was inserted directly into the cells

The last step of gene therapy would be

  • The corrected lymphocytes are returned to the patients

  • Culture of lymphocytes of the patient

  • Introduction of correct gene in cultured cells

  • Removal of corrected lymphocytes from culture

The permanent cure of gene therapy can be

  • Cells isolated from bone marrow in an adult were cultured and transformed with corrected gene

  • Cells isolated from thymus in an adult were cultured and transformed with corrected gene

  • Cells isolated from bone marrow in an embryo were cultured and transformed with corrected gene

  • Genes isolated from bone marrow were introduced into the cells at early embryonic stage

Conventional methods are not

  • Serum analysis

  • Urine analysis

  • For early detection

  • Both B and C

Early diagnosis of a disease cannot be served by

  • ELISA

  • PCR

  • Recombinant DNA Technology

  • X-Ray

PCR will allow to detect genetic defects but doesn't involve which of the following steps.

  • Probing with radioactive molecule

  • Hybridization

  • Autoradiography

  • Antigen antibody interaction

ELISA involves

  • Detection by the presence of antigens

  • Detection by the presence of antibodies synthesized against pathogen

  • Both A and B

  • Only detection of the outer coat of pathogen

Transgenic animals are

  • The ones with manipulated proteins

  • The ones with manipulated DNA

  • The ones with manipulated mRNA

  • The ones with manipulated efficiency

Transgenic animals:

  • All are mice

  • More than 95% are mice

  • More than 90% are mice

  • 95% are mice

Transgenic animals are created not to study which of the following options

  • The regulation of genes

  • Study of disease

  • For biological products

  • Diagnostics

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Practice Zoology Quiz Questions and Answers