In this article we will discuss about:- 1. DNA Organization in Nucleus 2. General Properties of DNA 3. Variation of Genomic Size among Plants 4. Plant Repetitive 5. Telomere Repeat Sequence 6. Single Copy Sequence 7. Fine Structure of Plant Gene 8. Genes for Ribosomal RNA 9. Palindrome Sequences. The spherical or ovoidal plant cell DNA resides in a nucleus, [...]
The upcoming discussion will update you about the differences between Polyteny and Polyploidy. Difference # Polyteny: 1. Homologous chromosomes undergo somatic pairing. 2. The products of polyteny remain attached to one another. 3. Polyteny produces hundreds of copies of the same chromosome. 4. Polytene chromosomes are visible in the interphase nucleus. 5. Polytene cells cannot multiply. They are destined to [...]
In this article we will discuss about:- 1. Definition of Chromosomes 2. Types of Chromosomes 3. Functions. Definition of Chromosomes: Chromosomes are rod shaped or threadlike deeply stainable condensed chromatin fibres which are hereditary vehicles as they store and transmit coded hereditary information. Chromosomes appear only during karyokinesis. They are meant for equitable distribution of genetic material. The number is [...]