The mitosis stops when chromosomes are at the maximum condenstation, it is practically metaphase but the chromosomes are not attached to the spindles so they don't form the equatorial plate.
The decreased oxygen levels in the water will affect the respiration of the fishes. In order to cope up with the change, the fishes may migrate to a better place with higher levels of dissolved oxygen. This however does not relate to the process of natural selection as the fishes are still the same, genetically and phenotypically. Natural selection acts on those fishes that are able to survive the decreased oxygen levels. These fishes will breed and increase their numbers. The new generation of fishes will be tolerant to the lower oxygen levels. This new phenotype indicates a change in the genetic composition of the fishes.
<em><u>limiting factor is generally energy availability while in low latitudes moisture is the limiting factor to growth.</u></em>
Answer:
Tetraploidy
Explanation:
The normal chromosomal number of human cells is 23 pairs or 46 chromosomes, which is a diploid state (2n). However, chromosomal disorder can occur in which there will be a less or more than this chromosome number in human cells. This could be as a result of mutation in the genome.
In this case, the stillborn baby was diagnosed to have 92 chromosomes which is far more than the normal 46 chromosomes. The chromosome number in a human gamete is 23, haploid (n). In this case, the baby is found to have a 4n chromosomal state, which is referred to as TETRAPLOIDY, a type of polyploidy in which four copies of each chromosome is present in each cell.
Blood cells and large particles