Answer:
e. both vitamin c and carotenoids
Explanation:
Age-related macular degeneration is an eye related disease which causes our macula to degenerate. It leads to blurred vision which further impacts our abilities like sewing, reading and driving adversely. It can be cured by intake of vitamin C and carotenoids in appropriate amount. Cataract is another disease related to eyes which most commonly occurs in old age people. In this disease, the eye lenses appear cloudy because of the changes in the eye lens tissue. Beta carotene and vitamin C both are very helpful in restricting cataract.
If one wishes to clone a gene using typical restriction endonucleases, how does the restriction endonuclease identify the appropriate cut sites in the genome using the palindromic sequence.
Restriction endonucleases are a family of enzymes usually found in bacteria that cuts DNA at a specific sequence called recognition site. There are three type of restriction endonuclease Type I, Type II, and Type III.
Each endonuclease recognizes a particular sequence called palindromic sequence which is a sequence that reads the same sequence in both the strands either reading from the 3 prime end or 5 prime end.
The endonuclease cuts the palindromic sequence in such a way that it produces sticky ends.
To learn more about restriction endonucleases here
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Tough cuticle made of proteins and chitin.
