Answer:
In a homozygous state, the allele "P" is lethal. Those individuals with PP genotype will be born dead.
Explanation:
The allele P is dominant over p and expresses the trait "platinum". But in the homozygous state, it is mortal, PP. The allele p expresses the "Silver" trait.
This is:
- For platinum individuals, the genotype should be Pp
- For silver individuals, the genotype should be pp
- For dead individuals, the genotype should be PP.
So in the crosses, the punnet squares are:
1- Silver x Silver
Parental) pp x pp
Gametes) p p p p
Punnet square)
p p
p pp pp
p pp pp
F1 Genotype) 100 % recessive homozygote pp
2- Silver x Platinum
Parental) pp x Pp
Gametes) p p P p
Punnet square)
p p
P Pp Pp
p pp pp
F1 Genotype) 50 % recessive homozygote pp,
50% heterozygote for the trait Pp
3- Platinum x Platinum
Parental) Pp x Pp
Gametes) P p P p
Punnet square)
P p
P PP Pp
p Pp pp
F1 Genotype) 25 % recessive homozygote pp
50% heterozygote for the trait Pp
25% dominant homozygote PP. This is a dead
individual.
In this last cross, individuals with genotype PP dye, so, of the whole offspring, there are two platinum for each silver offspring.
Laxatives do nothing for your weight and can cause severe health problems if used incorrectly
Answer:
Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along plate boundaries in zones that may be anything from a few kilometres to a few hundred kilometres wide
Explanation:
- <em>continent‐continent, ocean‐continent, and ocean‐ocean. Continent‐continent convergence results when two continents collide. ... Ocean‐continent convergence occurs when oceanic crust is subducted under continental crust</em>
Answer:
a. Water will move out of the cell
b. Shrink
c. Hypertonic solution
Explanation:
a. The scenario given shows that there is greater concentration of solutes outside the cell than the concentration of solutes inside the cell because there is 75% water inside the cell and 60% water outside the cell. So by osmotic pressure, water moves out of the cell.
b. Once the cell loses water it would shrink
c. It is an hypertonic solution because the concentration of solutes outside the cell is greater than the concentration of solutes inside the cell.
