THE FLAGELLATED PROTOZOA 1. Flagellated protozoan possess flagella for locomotion. The flagellapush or pull the protozoans through aquatic medium. Flagella may produce two-dimension: Whip like movements and helical movements. 2.…
DNA: THE GENETIC MATERIAL The biologists of twentieth century realized that the genetic material must have certain characteristics. These charabteristics can explain the properties of life: 1: First, the genetic…
Multiple Choice Questions MCQs Four options are given at the end of each statement. You should encircle one option from them. Which of the followings is linker protein? (a) H1 …
Write note on eukaryotic chromosomes. Write note on sex chromosomes and autosomes. Discuss linkage relationships. Write note crossing over. Write note on point mutation Discuss aneuploidy and polyploidy. Discuss changes…
TERMS DEFINITIONS Cell cycle The highly dispersed state of chromosomes is called chromatin. Mitosis The highly folded form during division of cell is called Nucleosothe Four types of Histone protein…
PROTOZOAN TAXONOMY Zoologists who specialize in the study of protozoa are called proto-zoologists. The protests base diversity of ultrastructure, life cycle, mitochondria, DNA sequence data, life styles and evolutionary lineages.…
Physical and chemical disturbance and errors occur during meiosis. They damage chromosome or alter their number in a cell. There can be folloyn chromosomal alterations: Point mutation The change of…
SYMBIOTIC LIFESTYLES Many protozoa have symbiotic lifestyles. Symbiosis is an intimate association between two organisms. There are following types of symbiosis in protozoans: 1. Parasitism: An association in which one…
EUKARYOTIC CHROMOSOMES The chromosome is composed of DNA and histone protein. DNA is the genetic material. It exists with protein in the fix form. The chromosome shows following phases: Chromatin…
LIFE WITHIN A SINGLE PLASMA MEMBRANE Protozoa have unicellular (cytoplasmic) organization. But they are not simple organisms. Often, they are more complex than any particular cell in higher organisms. Some…
saadia
abida