Answer:
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Explanation:
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The earth is only the planet in the solar system that is suitable for survival of living organisms including human civilization. The earth is about 4.55 billion years old. It is the third planet on the basis of distance from the sun and fifth largest planet in the solar system. The average surface temperature of the earth is 15º C. Earth consists of 71 % of water and 29% of land. It is 1.5 × 10⁸ km far from sun ( 1 AU ). It's rotation period is 24 hrs and revolution period is 365 days 6 hrs ( reasons for leap year ). It consist of one natural satellite called moon.
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***the molecular tools are:
Restriction enzymes
Restriction genes allow the synthesis of DNA-cleaving endonucleases at very specific sites to digest parasite DNA
-RNAse
* RNA A: specifically cleaves single-stranded RNAs, and releases residues of pyrimidine 3'-phosphates
* H RNA: cleaves DNA / RNA hybridization -digests RNA in an RNA-DNA complex. It is used to remove RNA after making a first strand of cDNA using reverse transcriptase.
-Alclaline phosphatase:
Alkaline phosphatases are active at alkaline pH. They make it possible to remove the phosphate group situated at 5 'of a DNA chain. They are extracted from bacteria or animal origin (intestines). They are used to prepare recombinant DNA.
-Kinase:
Kinases make it possible to fix a phosphate group in the presence of ATP.
-the enzymes copying the nucleic acids:
* DNA Polymerase (Taq, and the Klenow fragment) for example)
* inverted transcriptase.
* RNA polymerase
-Ligase
***Use of these techniques.
The biologist has a number of tools and methods for studying gene mutation. The analysis of the gene will make it possible to diagnose certain pathologies. Then, once the pathology is known, the doctor can establish an adequate treatment for the patient in order to treat it.
Answer:
B and C plz don’t report if wrong hope it helps
Explanation:
Chlorophyll is any of several related green pigments found in cyanobacteria and the chloroplasts of algae and plants.