In this article we will discuss about:- 1. Definition of Cleavage 2. Chemical Changes during Cleavage 3. Patterns 4. Nuclei of Cleavage Cells 5. Morula and Blastula. Definition of Cleavage: One of the peculiarities of sexual reproduction in animals is that the complex multicellular body of the offspring originates from a single cell—the fertilized egg. It is necessary, therefore, that [...]
Learn about the comparison between Mitosis and Meiosis. Comparison # Mitosis: 1. Mitosis occurs in all somatic cells of an individual. 2. In mitosis, each DNA-replication cycle is followed by one cell division. The resulting daughter cells have a diploid number of chromosomes. 3. In mitosis each chromosome behaves independently. 4. In mitosis the genetic material remains constant. 5. Mitosis [...]
In this article we will discuss about:- 1. Meaning of Meiosis 2. Kinds of meiosis 3. Process of Meiosis 4. First Meiotic Division 5. Homotypic or Second Meiotic Division 6. Significance of Meiosis. Contents: Meaning of Meiosis Kinds of meiosis Process of Meiosis First Meiotic Division Homotypic or Second Meiotic Division Significance of Meiosis 1. Meaning of Meiosis: In sexually [...]