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TLS Online TPP Program

#Question id: 20197

Which of the following sets of quantum numbers is correct for an electron in 4f – orbital ?

#XL - P Chemistry
  1. n = 4, l= 3, m = +4, s =+ ½
  2. n = 3, l= 2, m = –2, s = + ½
  3. n = 4, l= 3, m = + 1, s = + ½
  4. n =4,l = 4, m = –4 s = - ½
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TLS Online TPP Program

#Question id: 3763

#XL - Q Biochemistry

What is the function of the enzyme topoisomerase in DNA replication?
TLS Online TPP Program

#Question id: 3764

#XL - Q Biochemistry

What is the role of DNA ligase in the elongation of the lagging strand during DNA replication?
TLS Online TPP Program

#Question id: 3765

#XL - Q Biochemistry

Which of the following types of molecules help to hold the DNA strands apart while they are being replicated?
TLS Online TPP Program

#Question id: 3766

#XL - Q Biochemistry

Individuals with the disorder xeroderma pigmentosum are hypersensitive to sunlight, and mutations to the DNA in their skin cells are left uncorrected. Why are the mutations not corrected in individuals with this disorder?
TLS Online TPP Program

#Question id: 3767

#XL - Q Biochemistry

Which of the following characteristics would you expect of a eukaryotic organism that lacks the enzyme telomerase?
TLS Online TPP Program

#Question id: 3768

#XL - Q Biochemistry

After the first replication was observed in their experiments testing the nature of DNA replication, Meselson and Stahl could be confident of which of the following conclusions?