The correct answer is: a. n+1, n+1, n-1, n-1
Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly during mitosis or meiosis. There are three forms of nondisjunction:
1. failure of a pair of homologous chromosomes to separate in meiosis I ,
2. failure of sister chromatids to separate during meiosis II, and
3. failure of sister chromatids to separate during mitosis.
As a consequence of nondisjunction abnormal chromosome numbers appears. If nondisjunction occurs during the meiosis I (anaphase I), this means that at least one pair of homologous chromosomes did not separate. The consequence is two cells that have an extra copy of one chromosome and two cells that lack that chromosome.
The ocean is the main regulator of co2 in the atmosphere because co2 can dissolve easily in it
Explanation:
a it is not double stranded
Almost all areas of Biology have developed in the twentieth century, but few areas have gained a lot of importance. Some of these are :
1. Genomics and Genetics
2. Biotechnology
3.Cell and molecular biology
