Humans have the enzyme hSMUG1, which removes any U residues that occur in single-stranded DNA during replication or transcription.  Two other human DNA glycosylases, TDG and MBD4, remove either U or T residues paired with G, generated by deamination of cytosine or 5-methylcytosine, respectively.

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#Unit 7. System Physiology – Animal

GnRH stimulates secretion of FSH and LH by gonadotropes

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#Id: 10432

#Unit 4. Cell Communication and Cell Signaling

Carcinogens are mutagens, they act by altering one or more nucleotides in DNA.

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#Id: 370

#Unit 2. Cellular Organization

Linking number is topological property which is expressed as  Total No. of Base Pair/Base pair per turn.

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#Id: 7158

#Unit 5. Developmental Biology

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#Id: 3041

#Unit 3. Fundamental Processes

Synthesis of an Okazaki fragment terminates just before the start of the RNA primer of the preceding fragment.