io 61 Biology Basies 2: Mark either True (A) or False (B) 45. People with Xerode
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io 61 Biology Basies 2: Mark either True (A) or False (B) 45. People with Xeroderma Pigmentosum are extremely resistant to DNA damage caused by UV light. 46. The difference between deoxyribose and ribose is that deoxyribose contains 47. Nucleotides are made of four components 48. One of Rosalind Franklin's X-ray diffraction photos was crucial for Watson an extra oxygen atom. and Crick to develop their model of DNA. The DNA model proposed by Watson and Crick offered a molecular explanation for mutation. 49. 50. DNA is found in both the nucleus and cytoplasm.Explanation / Answer
45) False : becasue in xeroderma pigmentosa DNA damage occurs by UV radiation andDNA is much prone to be mutated or damage.
46) False: deoxyribose lack extra oxygen at 2' crbon atom that makeit different from ribose sugar which has extra oxygen.
47) False: Nucleotide made upof 3 subunits: nitrogenous base+ sugar+ phosphate
48) True: X-ray photo was crucial information for Watson and Crick then realize that DNA structure must contain a double helical structure and got nobel prize.
49) True: Watson crick model provides molecular explanation of mutation .
50) True: DNA found in both in nucleus (eukaryotes) andin cytoplasm (prokaryotes) in the formof plasmid.
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