Evidences of evolution of life
Studies and researches that are done in different fields from time to time show increasing complexities in organisms than their ancestors. These studRead More…
Category: Biology
Questions and answers on Heredity/Bio- X
1. Trait-A exists in 10% of a population of an asexually reproducing species and trait-B in 60%of the same population. Which trait is likely toRead More…
Determination of sex in living organisms
Determining male or female form of living organism through sexual reproduction is called as sex determination. Sex determination on a large scale is Read More…
Heredity, Its Physical Basis and Variations
What is Heredity? Some specific characters are found in the parents of each species. These characters are transferred from generation to generatioRead More…
Inheritance of Genetic Characters
Parental traits are transferred from one generation to other generation by means of chromosomes, DNA, or Genes. I. Chromosome The filamentous sRead More…
Mendel’s Laws of Inheritance
On the basis of his experiments of hybridization Mendel proposed following rules of heredity – 1. Law of Paired Factors Traits of each indiviRead More…
Heredity, its basis and Variations
Some specific characters are found in the parents of each species. These characters are transferred from generation to generation through the processRead More…
Human Reproductive Health
A. What is Reproductive Health? The physical and mental conditions that collectively affect the reproductive capacity of a male or a female Read More…
Population Control
Through different means – natural and unnatural the process of keeping in a limit the growth of population is called as Population Control. It is eRead More…
Important Processes of Reproduction
A. Ovulation, Fertilization and Menstruation Cycle: When both the ovaries are fully mature, they alternatively produce ova at the interval of 28 dRead More…