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.
Answer:
lower prices and higher quality
Explanation:
Remember that the competition will make that more people is selling the same or similar products. Because of competition, the sellers most make an effort to offer better products, maybe because is a different material, maybe because the process is cheaper. Free trade will open a door to any seller around the world to sell with quality the products but at the same time to reduce the math examn.
The answer to this question is B
Answer:
1. Myocarditis
2. Pericarditis
3. Endocarditis
4. Heart attack/myocardial infarction
5. Vasodilation
6. Thrombophlebitis
7. Varicose veins
Answer:
20 chromosomes
Explanation:
Mitosis is a kind of cell division that results in daughter cells with same number of chromosomes as the parent cell. It involves stages including Prophase, Metaphase, Anaphase and Telophase. In prophase, the Chromatin condenses into Chromosomes.
In Anaphase stage, the 10 chromosomes as mentioned in the question divides into opposite poles of the cell. One individual chromosome contains two sister chromatids, which actually separates in the Anaphase stage. Hence, at the end of the Anaphase stage, there will be 10 chromatids each at opposite poles of the cell. Each chromatid at this stage is considered a chromosome.
Hence, a cell with 10 chromosomes will contain 20 chromosomes (10+10 chromatids on each pole) in the Anaphase stage just before the cell divides into two in a process called CYTOKINESIS.
