Which of the following is true about ataxia telangiectasia?
AThere is absence of amphicytes in different organs
BIt is an autosomal recessive disease
CIt is associated with normal immune function
DSerum levels of IgA are increased
ESerum alpha-fetoprotein levels are decreased
What is a key similarity between the processes of replication and transcription?
AUse RNA primers for initiation.
BUse ribonucleotides as precursors.
CAre semi-conservative events.
DInvolve phosphodiester bond formation with elongation occurring in the 5' - 3' direction.
The gaps between Okazaki fragments on the lagging strand during DNA replication are rejoined and sealed by:
ADNA Ligase
BDNA Helicase
CDNA Phosphorylase
DDNA Topoisomerase
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