Cytokinin Primary site of synthesis -- root tips. High concentrations -- immature seeds and developing fruits

TLS Online TPP Program

#Id: 2295

#Unit 3. Fundamental Processes

scrunching model -proposes that DNA downstream from the stationary, promoter-bound, polymerase is unwound and pulled into the enzyme. The DNA thus accumulated within the enzyme is accommodated as single-stranded bulges.

TLS Online TPP Program

#Id: 1938

#Unit 4. Cell Communication and Cell Signaling

Diverse Functions of Complement

TLS Online TPP Program

#Id: 3537

#Unit 2. Cellular Organization

The fivefold discrepancy in size between the S. cerevisiae (84 kb) and mammalian (16.6 kb) mitochondrial genomes indicates the fact that there must be a great difference in their genetic organization in spite of their common function.

TLS Online TPP Program

#Id: 3661

#Unit 3. Fundamental Processes

The gene can be restored to normal function if a second mutation either (1)converts the misplaced termination codon to a codon specifying an amino acid or (2) suppresses the effects of the termination codon, such restorative mutations are called nonsense suppressors.

TLS Online TPP Program

#Id: 5027

#Unit 3. Fundamental Processes

The bacterial chromosome is a single replicon; thus, the frequency of replication cycles is controlled by the number of Initiation events at the single origin.