#Question id: 4745
#SCPH01 Biochemistry
In some goats, the presence of horns is produced by an autosomal gene that is dominant in males and recessive in females. A horned female is crossed with a hornless male. The F1 offspring are intercrossed to produce the F2. What proportion of the F2 offspring will have horns?
#Question id: 5205
#SCPH06 I Botany
Why is it preferable to use large computers and databases in searching for individual genes, rather than testing each sequence for possible function?
#Question id: 15479
#I Life Science/ Life Sciences Group – I-V
#Question id: 18654
#SCPH01 Biochemistry
#Question id: 2073
#I Life Science/ Life Sciences Group – I-V
The phosphate transport system in bacteria imports phosphate into the cell even when the concentration of phosphate outside the cell is much lower than the cytoplasmic phosphate concentration. Phosphate import depends on a pH gradient across the membrane—more acidic outside the cell than inside the cell. In this bacterial cell, phosphate transport is an example of: