The introduction of a foreign gene into an animal's genome can result in:
Overexpression of the introduced gene
Silencing of the introduced gene
Position effects influencing gene expression
All of the above
Related Questions
A researcher aims to create a transgenic cow that produces human lactoferrin in its milk. Which promoter would be MOST suitable to drive the expression of the human lactoferrin gene in the mammary gland of the cow?
CMV promoter
ฮฒ-actin promoter
ฮฒ-lactoglobulin promoter
Metallothionein promoter
Transgenic animals are primarily developed for which of the following purposes?
Studying human diseases
Producing pharmaceuticals
Improving livestock
All of the above
Transgenic animals exist for which of the following human diseases?
a. Alzheimer's b. Cancer c. Cystic fibrosis
Choose the option which includes all the correct ones
a only
a and b
c only
a, b, and c
Which of the following transgenic animals are used in testing safety of polio vaccine before they are used on human?
Transgenic cow
Transgenic monkey
Transgenic mice
Transgenic sheep
The first case of IVF-ET technique success, was reported by
Louis Joy Brown and Banting Best
Patrick Steptoe and Robert Edward
Robert Steptoe and Gilbert Brown
Baylis and Starling Taylor
In 1997, the first transgenic cow, Rosie produced
Human protein enriched milk (2.4 g/L)
Human protein enriched milk (2.8 g/L)
Human calcium enriched milk (2.4 g/L)
Human calcium enriched milk (2.8 g/L)
Transgenic animals are produced for which of the following purposes?
I. To study the normal physiology and development
II. To study diseases
III. To obtain useful biological products
IV. To test the vaccine safety
V. To test the chemical safety
Which of the above statements are correct?
I, II and III
II, III and IV
I, II, III and V
I, II, III, IV and V
A transgenic mouse expressing a human growth hormone gene exhibits gigantism. Researchers discover a second transgenic mouse line with the same human growth hormone gene construct, yet these mice show normal growth. Which of the following is the MOST LIKELY explanation for this discrepancy?
The second mouse line has a mutation in the mouse growth hormone receptor gene.
The human growth hormone gene is not being transcribed in the second mouse line.
Position effect variegation due to the transgene's insertion site in the second mouse line.
The second mouse line expresses an endogenous inhibitor of human growth hormone.
Which of the following is the most common method used to introduce a foreign gene into an animal embryo to create a transgenic animal?
Microinjection
Gene gun
Electroporation
Viral vectors
Rosie the cow was a transgenic animal produced by which technique?
Retroviral infection
Biolistic gene transfer
Microinjection
Embryonic stem cell transfer
