Essential Transgenic Animal Production MCQs with Answers – Proven Learning Guide

Essential Transgenic Animal Production MCQs with Answers – Proven Learning Guide

Transgenic Animal Production MCQs with Answers is an important biology topic for aspirants who want to understand genetic engineering, animal biotechnology, foreign gene transfer, recombinant DNA, cloning, molecular farming, and biomedical applications in a clear and exam-focused way. Transgenic Animal Production MCQs with Answers helps aspirants revise how animals are genetically modified by introducing a foreign gene into their genome so that the gene becomes present in all cells and expresses a useful trait. Transgenic animals are not naturally produced hybrids; they are created through deliberate gene manipulation, usually at the embryonic stage. Transgenic Animal Production MCQs with Answers is useful for Class 12 Biology, NEET, biotechnology entrance exams, animal science exams, nursing exams, and life science preparation.

Transgenic Animal Production MCQs with Answers becomes easier when aspirants first understand the meaning of a transgenic animal. A transgenic animal is an animal that carries foreign DNA in all of its cells. Transgenic Animal Production MCQs with Answers explains that the foreign gene is introduced into a fertilized egg, embryo, or early developmental cell so that it becomes integrated into the genome. When the embryo develops, the inserted gene is carried by the tissues of the animal. This makes the animal capable of producing a desired protein, showing a specific trait, or serving as a model for research.

Transgenic Animal Production MCQs with Answers is closely linked with the methods used to introduce foreign DNA. Microinjection is one important method in which DNA is directly injected into the pronucleus of a fertilized egg. Transgenic Animal Production MCQs with Answers also includes viral vector methods, where modified viruses transfer useful genes into animal cells. Embryonic stem cell-mediated gene transfer is another important approach, especially in mice. These methods help scientists produce animals with stable genetic changes.

Transgenic Animal Production MCQs with Answers is important because transgenic animals are widely used in medical research. They help scientists study human diseases, test medicines, understand gene function, and develop therapies. Transgenic Animal Production MCQs with Answers helps aspirants remember that mice form the largest proportion of transgenic animals used in laboratories. Transgenic mice are used to study cancer, diabetes, immune disorders, neurological diseases, and genetic defects. Because mice reproduce quickly and have a well-studied genome, they are highly useful in research.

Transgenic Animal Production MCQs with Answers also explains the use of transgenic animals in vaccine safety testing. Transgenic animals can be used to test the safety of vaccines before use in humans. Transgenic Animal Production MCQs with Answers helps aspirants connect this point with biotechnology applications in healthcare. For example, transgenic mice have been used in safety testing of vaccines. Such examples show how animal biotechnology supports medical progress and public health.

Transgenic Animal Production MCQs with Answers is strongly connected with molecular farming. Molecular farming means using plants or animals as biological factories for producing useful proteins. Transgenic Animal Production MCQs with Answers explains that some transgenic animals are designed to produce human proteins in milk, blood, or other biological products. For example, transgenic sheep have been used to produce alpha-1 antitrypsin, a protein useful in treating emphysema. This concept helps aspirants understand how biotechnology can produce pharmaceutical proteins on a large scale.

Transgenic Animal Production MCQs with Answers also includes the famous transgenic cow Rosie. Rosie produced milk enriched with human alpha-lactalbumin, making the milk more nutritionally balanced than normal cow milk. Transgenic Animal Production MCQs with Answers helps aspirants avoid confusion between alpha-lactalbumin and alpha-1 antitrypsin. Rosie is associated with alpha-lactalbumin, while alpha-1 antitrypsin is associated with transgenic animals such as sheep. These details are often tested in biology exams.

Transgenic Animal Production MCQs with Answers should also be revised with animal breeding applications. Transgenic technology can improve traits such as milk yield, meat quality, wool production, disease resistance, and growth efficiency. Transgenic Animal Production MCQs with Answers helps aspirants compare traditional breeding with genetic engineering. Traditional breeding depends on selection and crossing, while transgenic production introduces specific genes directly into the animal genome. This makes genetic improvement more targeted, although it also requires careful ethical and biosafety evaluation.

Transgenic Animal Production MCQs with Answers is also linked with cloning, although cloning and transgenesis are not the same. Dolly the sheep was the first mammal cloned from an adult somatic cell by nuclear transfer. Transgenic Animal Production MCQs with Answers helps aspirants understand that cloning produces a genetic copy, while transgenic production introduces foreign DNA. Both are important biotechnology tools, but their purposes and mechanisms differ.

Transgenic Animal Production MCQs with Answers:

  1. How many recombinant therapeutics have been used for human diseases throughout the world?

A. 12
B. 24
C. 30
D. 56

Answer: C. 30

Explanation: About 30 recombinant therapeutics have been approved for human diseases throughout the world. Out of these, around 12 are marketed in India. Examples include humulin, hirudin, and other genetically engineered therapeutic products.

  1. SCID, or Severe Combined Immuno Deficiency Syndrome, can be cured permanently by

 

  1. Enzyme replacement therapy
  2. By siRNA approach
  3. Introducing bone marrow cells producing ADA into cells at early embryonic stages
  4. Periodic infusion of genetically engineered lymphocytes having functional ADA cDNA

Options:

A. II, III and IV
B. III and IV
C. III and V
D. All of these

Answer: B. III and IV

Explanation: A permanent cure of SCID caused by ADA deficiency may be achieved by introducing a functional ADA gene into cells at an early embryonic stage or by genetically modifying patient cells to produce functional ADA.

  1. The name of the first cloned sheep is

A. Dolly
B. Polly
C. Molley
D. Holly

Answer: A. Dolly

Explanation: Dolly was the first cloned sheep. She was produced at the Roslin Institute in Scotland by nuclear transfer from an adult somatic cell.

  1. Transgenic animals are those which have

A. Foreign DNA in some of their cells
B. Foreign DNA in all of their cells
C. Foreign RNA in some of their cells
D. Both A and C

Answer: B. Foreign DNA in all of their cells

Explanation: Transgenic animals are organisms that contain foreign DNA in all their cells because the foreign gene is introduced into the embryo and becomes part of the developing organism.

  1. Which of the following reasons is mainly responsible for graft rejection in transplantation of organs?

A. Inability of recipient to differentiate between self and non-self tissues or cells
B. Humoral immune response only
C. Auto-immune response
D. Cell-mediated response

Answer: D. Cell-mediated response

Explanation: Graft rejection is mainly caused by cell-mediated immune response. T-cells recognize transplanted tissue as foreign and attack it.

  1. Pathogenic bacteria gain resistance to antibiotics due to changes in their

A. Cosmids
B. Plasmids
C. Nucleus
D. Nucleoid

Answer: B. Plasmids

Explanation: Antibiotic resistance genes are often carried on plasmids. These plasmids may be transferred between bacteria through conjugation.

  1. The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of

A. Inactivation of glycosidase enzyme in recombinant bacteria
B. Non-recombinant bacteria containing beta-galactosidase
C. Insertional inactivation of alpha-galactosidase in non-recombinant bacteria
D. Insertional inactivation of alpha-galactosidase in recombinant bacteria

Answer: D. Insertional inactivation of alpha-galactosidase in recombinant bacteria

Explanation: In blue-white screening, insertion of foreign DNA disrupts the alpha-galactosidase gene in recombinant bacteria. These colonies appear white, while non-recombinant colonies appear blue.

  1. Mule is an example of

A. Cross-breeding
B. Interspecific hybridization
C. Out-breeding
D. Out-crossing

Answer: B. Interspecific hybridization

Explanation: A mule is produced by crossing a female horse with a male donkey. Since these are different species, it is an example of interspecific hybridization.

  1. The first clinical gene therapy was administered to cure the deficiency of

A. Sickle cell anaemia
B. Diabetes mellitus
C. Severe Combined Immuno Deficiency
D. Diabetes insipidus

Answer: C. Severe Combined Immuno Deficiency

Explanation: The first clinical gene therapy was carried out for Severe Combined Immuno Deficiency caused by ADA deficiency.

  1. Vital stains are employed to study

A. Living cells
B. Frozen tissues
C. Fresh tissues
D. Preserved tissues

Answer: A. Living cells

Explanation: Vital stains are used to study living cells either in vivo or in vitro.

  1. RNA interference is essential for

A. Cell proliferation
B. Cell defence
C. Cell differentiation
D. Micropropagation

Answer: B. Cell defence

Explanation: RNA interference is a cellular defence mechanism that protects cells from foreign genetic material such as viral RNA and transposons.

  1. Gene library or DNA library has a collection of

A. DNA and RNA
B. Any one type of gene of organism
C. cDNA only
D. All possible genes of all organisms

Answer: C. cDNA only

Explanation: A cDNA library contains complementary DNA copies made from expressed mRNA molecules of an organism.

  1. Which of the following statements are correct based on the given passage?

A. In germ line gene therapy, functional genes are introduced into somatic cells
B. Synthetic oligo deoxynucleosides are used for silencing disease-causing genes
C. The transgenic animal product alpha-lactalbumin is used to treat emphysema
D. Viral vectors are used to send genetically modified DNA by a process called transfection

Options:

A. A and C
B. B and C
C. B and D
D. A and D

Answer: C. B and D

Explanation: Synthetic oligo deoxynucleosides may be used in gene silencing, and viral vectors can be used to transfer genetically modified DNA into eukaryotic cells by transfection. Germ line gene therapy targets germ cells, not somatic cells. Alpha-1 antitrypsin, not alpha-lactalbumin, is used to treat emphysema.

  1. Identify the vector suitable to clone long fragments of DNA.

A. Phage vectors
B. Bacterial plasmids
C. Yeast plasmids
D. Cosmids

Answer: D. Cosmids

Explanation: Cosmids are suitable for cloning relatively long DNA fragments and are commonly used in genomic library construction.

  1. Match the following List I with List II.

List I:
A. First clinical gene therapy
B. Transfection
C. Synthetic oligo deoxynucleosides
D. PCR

List II:
i. DNA amplification
ii. ADA deficiency treatment
iii. Gene silencing
iv. Introduction of genetically modified DNA into eukaryotic cells

Options:

A. A-ii, B-iv, C-iii, D-i
B. A-i, B-iii, C-ii, D-iv
C. A-iii, B-ii, C-iv, D-i
D. A-ii, B-i, C-iv, D-iii

Answer: A. A-ii, B-iv, C-iii, D-i

Explanation: The first clinical gene therapy treated ADA deficiency. Transfection introduces genetically modified DNA into eukaryotic cells. Synthetic oligo deoxynucleosides may be involved in gene silencing. PCR is used for DNA amplification.

  1. Identify the correct sequence of steps followed in gene therapy.

A. Altered virus is mixed with cells from patient
B. Therapeutic human gene is inserted into the virus vector
C. Cells are collected from the patient
D. Cells from the patient become genetically altered
E. Reintroduction of genetically altered cells into patient
F. Suitable virus vector is selected and altered
G. The genetically altered cells produce the desired proteins or hormones

Options:

A. C-B-A-F-D-G-E
B. C-F-B-A-D-E-G
C. C-E-F-A-B-D-G
D. C-A-D-E-B-F-G

Answer: B. C-F-B-A-D-E-G

Explanation: First, cells are collected from the patient. A suitable viral vector is selected and altered. The therapeutic gene is inserted into the vector. The altered vector is mixed with patient cells, which become genetically altered. These cells are reintroduced into the patient and produce the desired protein or hormone.

  1. Which of the following was the first transgenic crop according to the given passage?

A. Pea
B. Flax
C. Tobacco
D. Cotton

Answer: C. Tobacco

Explanation: Tobacco was one of the first transgenic plants developed and was engineered for herbicide resistance.

  1. What is a transgenic organism defined as?

A. An organism with foreign DNA in some of its cells
B. An organism with foreign DNA in all its cells
C. An organism with foreign DNA in none of its cells
D. An organism with foreign DNA in a specific organ

Answer: B. An organism with foreign DNA in all its cells

Explanation: A transgenic organism has foreign DNA integrated into its genome and present in all its cells.

  1. In which method of animal breeding are two different species of male and female animals mated?

A. Cross-breeding
B. Interspecific hybridization
C. Out breeding
D. Out crossing

Answer: B. Interspecific hybridization

Explanation: In interspecific hybridization, male and female animals of two different but related species are mated.

  1. Match the cattle breeds with their respective places of origin.

A. Amrithmahal
B. Ongole
C. Khillari
D. Hallikar

Places:
p. Hassan and Tumkur districts
q. Coimbatore district
r. Nellore and Guntur districts
s. Chikmagalur and Chitradurga districts
t. Satara and Sholapur districts

Options:

A. A-s, B-r, C-t, D-p
B. A-q, B-s, C-t, D-p
C. A-s, B-t, C-q, D-r
D. A-q, B-s, C-p, D-t

Answer: A. A-s, B-r, C-t, D-p

Explanation: Amrithmahal originated in Chikmagalur and Chitradurga districts, Ongole in Nellore and Guntur districts, Khillari in Satara and Sholapur districts, and Hallikar in Hassan and Tumkur districts.

  1. What are Holstein-Friesian, Brown-Swiss, and Jersey known as?

A. Animal husbandry scientists
B. Exotic breeds of cow
C. Exotic breeds of poultry
D. Exotic breeds of goat

Answer: B. Exotic breeds of cow

Explanation: Holstein-Friesian, Brown-Swiss, and Jersey are exotic breeds of cattle known for dairy production.

  1. What is one method of biotechnology for animal breeding programmes to improve yield of milk, meat, or wool in cattle, goats, and sheep?

A. Hybrids
B. F1 generation
C. Transgenic individuals
D. F2 generation

Answer: C. Transgenic individuals

Explanation: Recombinant DNA technology can be used in animal breeding to introduce useful genes into fertilized eggs, producing transgenic animals with improved traits.

  1. What is the purpose of molecular farming as mentioned in the passage?

A. To produce genetically modified animals
B. To provide a safe and inexpensive means for mass production of recombinant pharmaceutical proteins
C. To develop new plant species through genetic engineering
D. To study the genetic makeup of transgenic plants

Answer: B. To provide a safe and inexpensive means for mass production of recombinant pharmaceutical proteins

Explanation: Molecular farming uses plants or animals as biological systems for producing recombinant pharmaceutical proteins on a large scale.

  1. What is the maximum number of existing transgenic animals?

A. Pig
B. Fish
C. Mice
D. Cow

Answer: C. Mice

Explanation: Mice form the largest proportion of existing transgenic animals and are widely used in research.

  1. What term is used to describe the laws and rules to prevent unauthorized exploitation of bio-resources?

A. Biopiracy
B. Biopatenting
C. Bioethics
D. Bioengineering

Answer: B. Biopatenting

Explanation: Biopatenting refers to patents granted on biological products or bioresources. These rules are associated with ownership and protection of biological resources.

  1. What methodology is adopted when a geneticist uses the blind approach for sequencing the whole genome of an organism and assigns functions to different segments?

A. Bioinformatics
B. Sequence annotation
C. Gene mapping
D. Expressed sequence tags

Answer: B. Sequence annotation

Explanation: Sequence annotation involves identifying and assigning functions to different regions of a sequenced genome.

  1. Where is the human protein alpha-1 antitrypsin obtained from?

A. Transformed bacteria
B. Transgenic animal
C. Transgenic plant
D. A plant from Western Ghats

Answer: B. Transgenic animal

Explanation: Alpha-1 antitrypsin has been produced in transgenic animals such as sheep and is used in the treatment of emphysema.

  1. What is the purpose of a reporter gene in molecular biology and genetics?

A. To produce milk enriched with alpha-lactalbumin
B. To treat respiratory infection called emphysema
C. To develop a new breed of sheep
D. To study the expression of other genes

Answer: D. To study the expression of other genes

Explanation: A reporter gene is used to study the expression of other genes because its product is easy to detect or measure.

  1. Hisardale is a new breed of sheep developed in Punjab by using which breeding technique?

A. Interspecific hybridisation
B. Cross-breeding
C. Out breeding
D. Multiple Ovulation and Embryo Transfer, MOET

Answer: B. Cross-breeding

Explanation: Hisardale sheep was developed in Punjab through cross-breeding to improve traits such as wool and meat quality.

  1. Assertion and Reason:

Assertion: The milk of transgenic cow Rosie was nutritionally more balanced than normal cow milk.
Reason: Alpha-1 antitrypsin is a biological product produced by transgenic cow Rosie.

A. Both Assertion and Reason are true, and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true, but Reason is false
D. Assertion is false, but Reason is true

Answer: C. Assertion is true, but Reason is false

Explanation: Rosie was a transgenic cow whose milk was enriched with human alpha-lactalbumin, making it nutritionally more balanced. Alpha-1 antitrypsin is associated with transgenic sheep such as Tracy and is used for treating emphysema. Therefore, the assertion is true, but the reason is false.

Transgenic Animal Production MCQs with Answers

 

 

Conclusion on Transgenic Animal Production MCQs with Answers

In conclusion, Transgenic Animal Production MCQs with Answers is a high-value topic for aspirants preparing biotechnology, genetics, animal breeding, and biomedical application chapters. Transgenic Animal Production MCQs with Answers improves understanding of foreign DNA transfer, transgenic mice, olecular farming, vaccine testing, disease models, Rosie cow, alpha-lactalbumin, and pharmaceutical protein production.

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