1)Wild-type snapdragon plants have green leaves.
Gardeners discovered and bred a new variety of the snapdragonplant that had golden leaves rather than green leaves. A crossbetween two golden snapdragons produced two types of progeny, somewith golden leaves and some with green leaves, in a 2:1 ratio.
This phenotype ratio is typical of:
Group of answer choices
Incomplete dominance
Complementation
Maternal effect
Recessive lethality
2)Wild-type plants of the squash family synthesize a bitterchemical, cucurbitacin, that is toxic.
Through selective breeding, gardeners created squash varietiesthat are edible; these carry mutations in the enzymes needed tosynthesize cucurbitacin. However, cross-pollination betweendifferent varieties with mutations in different genes producesprogeny that are toxic!
This is an example of:
Group of answer choices
1-Maternal effect
2-Complementation
3-Recessive lethality
4-Incomplete penetrance
