Answer:
Prophase II meiosis-chromosomes-6 and 12 DNA molecules per cell.
Explanation:
Meiosis is a unique type of division that occur in cells in which the chromosome number is decreased to half with the creation of haploid cells. It can be referred to as reduction division and it mostly occurs in organisms which go through sexual reproduction.
In prophase II , the nucleoli and nuclear membrane disappear.
The chromatids reduces in length to become short and thick .
The centromeres migrates to the polar regions and set the spindle fibres in place for the second meiotic division.
Therefore, at Prophase II of meiosis
The daughter cells are haploid. Its haploid cells should possess six chromosomes and 12 DNA molecules.
Answer:
Height
Explanation:
Height is polygenic trait which means that is controlled by more than one gene. This is different than Mendelian genetics in which one gene controls one trait-monogenic trait (e.g. flower color). Expressed phenotype of polygenic trairs is mix of all genes that control it (each gene has the same influence on phenotype) and it can express range of possible phenotypes (not only tall ad short but alos something in between).
This type of inheritance is known as polygenic inheritance or quantitative inheritance.
Traits that are also polygenic are skin and hair color, intelligence etc.
Seat belts and airbags were inserted into cars around the time of the late 1950s so the rate of death during a car accident would decrease because people are more likely to survive. And then in 1991 Side Impact Protection System (SIPS) was placed into cars again reducing fatalities during a car incident as people became more protected. :)
Because they make up the body and have various purposes
