Answer:
A cornea transplant involves the grafting of a donor cornea into a recipient's anterior eye. The sutures to hold the graft in place must stay in place for a long period of time because the cornea is slow to heal. ... The fibrous layer includes the tough sclera (the "white" of the eye) as well as the transparent cornea. so TRUE
Explanation:
Answer: Not exactly.
Explanation: Around the world in different places the sun is around for longer than others. Take Canada and the Philippines for example. When Summer comes around, daylight in Canada can last until like 10 on a good day. In the Philippines though, pretty much all year round it starts to get dark by around 5:30.
3 years isnt as much as others out there
Answer:
Telomerase acts to elongate the 3' end of linear DNAs.
Explanation:
The 5' ends of the linear DNA can not be replicated by DNA polymerase due to the absence of free 3' end to be elongated. This is prevented by the action of telomerase enzyme which contains both RNA and protein components. The RNA component of the telomerase is 150 nucleotides long.
The telomerase enzyme elongates the 3' end of the template strand by using its inbuilt RNA template. Since it uses an RNA template to make the DNA copies, it is a reverse transcriptase. Repeated translocation and repositioning of the enzyme elongates the 3' end of the template DNA.
The RNA primase makes the RNA primer at the end of the new telomere strand which is then elongated by DNA polymerase. DNA ligase seals the nick. In this way, telomerase serves to prevent the loss of 5' ends of linear DNA in successive rounds of DNA replication.
