Asked: May 22, 20232023-05-22T13:54:55+05:30 2023-05-22T13:54:55+05:30In: Biology
Name the first transgenic cow. Which gene was introduced in this cow ?
- The number of chromosomes in the shoot tip cells of a maize plant is 20.
- Bacterial cell envelope is a complex structure. It is made up of various layers
- Six- sides ring in aldohexoses is called: a)cyclo-hexane b) pyran c) furan d) No answer
- 1. Name the phenomenon of the influence of day length on the flowering of long day and
- Identify the incorrectly matched pair. (a) Ebola → Filoviruses (b) Mumps → Paramyxovirus (c) Rabies → Rhabdovirus
- An example of saturated fatty acid is
- Gene expression can be controlled with the help of RNA. Explain the method with an example.
- The first plants to appear after forest fire are the ferns this is because of the survival of their
- Refer to the diagram given below and choose the option that indicates incorrect labelling.
- When & where does reduction division takes place in the life cycle of liverwort, moss, ferns, gymnosperm, and angiosperm?
You must login to add an answer.
Need An Account, Sign Up Here
Answer: The first transgenic cow was developed in 1997, named Rosie. It consists of the human alpha-lactalbumin gene. The milk of the transgenic cow produced proteins in their milk, their milk contained about 2.4 grams of human protein per liter of milk and was found to be more nutritionally balanced for human bodies than that of the natural cow milk. However, this protein is only in mammary tissue which means that this will only be found in the cow’s milk and can only be extracted from there.
The transgenic cows are kept separate from regular herds. Transgenic cows look identical to normal cows. Researchers use ear tags and microchips to identify transgenic cows and their calves. One of the aims of the research program is to show that transgenic cows pass on their transgenes to subsequent generations.
Making a transgenic cow is a multistep process. First, the gene for the desired product is identified and sequenced. Then a gene construct containing this desired gene is created using DNA cloning, digestion, and then the gene construct is then introduced into female bovine (cow) cells by transfection.