When lactose is not present, what happens to E. coli is that the genes that produce the enzymes needed to break down lactose are not expressed. The correct answer is B.
The more you observe, the more you catch on
Answer:
By the size and shape of the organisms.
Explanation:
C. albicans isn't a bacteria, it's actually a fungi. Therefore, there will exist significant differences between the bacteria normally found in the vagina, and the fungi that can be causing an infection. Fungus are, usually, bigger than bacteria. Also bacteria have special shapes, like bacillus and spirils, which fungus don't.
E.3/16
Vg: normal wings; vg: vestigial wings
Bt: normal wings, bt: bent wings
But to simplify, I write:
V: normal wing; v: vestigial wing
B: normal wings; b: bent wings
P: VvBb x VvBb
Gametes (both) VB, Vb, vB, vb
F1 (Punnett Square)
.....|.... VB...|...Vb...|...vB...|..vb
VB | VVBB | VVBb | VvBB | VvBb
Vb | VVBb .| VVbb | VvBb | Vvbb
vB | VvBB ..| VvBb | vvBB | vvBb
vb | VvBb ..| Vvbb. | vvBb | vvbb
Phenotypic ratio: 9/16 V-B- (normal) : 3/16 V-bb (bent) : 3/16 vvB- (vestigial) : 1/16 vvbb (vestigial-bent)
