How transgenic mice are produced?

Typically, transgenic mice are generated by microinjecting the transgenic construct into a fertilized egg (oocyte or zygote). An alternative way to effectively introduce a transgene into an egg is the use of a retrovirus vector.

Which is correct method in producing transgenic mice?

Two methods of producing transgenic mice are widely used: transforming embryonic stem cells (ES cells) growing in tissue culture with the desired DNA; injecting the desired gene into the pronucleus of a fertilized mouse egg.

Which vector is used for production of transgenic mice?

Retroviral vectors have been used often to transduce multiple cell types in vitro and many cells of the mouse in vivo (33). Indeed, they are the most common agent used for human somatic cell gene-therapy trials (34). However, in ES cells, expression of Moloney murine leukemia viral vectors is severely restricted.

How long does it take to breed transgenic mice?

For example, it is 18.5 days in C57BL/6J (000664) mice, 20 days in BALB/cJ (000651) mice, and 21 days in A/J (000646) mice. Generation time. Generation time in laboratory mice is about 12 weeks: ~3 weeks gestation, 3- 4 weeks suckling, and 5-6 weeks until sexual maturity.

What is the breeding cycle of a mouse?

Mice are able to begin breeding within 6 weeks of birth. There is no specific season when mice breed. They will have litters all year round. Both males and females are usually ready to mate within the first 50 days of life.

How do you breed a mouse?

Provide plenty of food and water. Healthy mice are more likely to mate and breed successfully. Make sure your mice all have access to: Water in a piper bottle. Pellet food (look for this at a pet store).

What is the breeding age of a mouse?

A mouse reaches breeding maturity between three and four weeks of age. It can be very difficult to differentiate between mouse genders, and many pet stores that sell pet mice often house members of the same sex together. This means if you buy a mouse from a pet store, it may very well be pregnant.

What are the different species of mice?

There are hundreds of types of mice, divided into subfamilies of either Old World or New World species. Common varieties include deer mouse, house mouse, field mouse, wood mouse, dormouse, spiny mouse and zebra mouse.