Biology Class notes & Tutorials
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Homologous Chromosome – definition
Diploid individuals have paired chromosomes. For example, in humans, there are 23 pairs of chromosomes totaling 46 chromosomes. In a ...
Mendel’s Laws of Inheritance
In this post, we will discuss Mendel's Laws of Inheritance. The laws are known as Law of Dominance, Law of ...
X-linked Recessive Alleles and their sex-linked features
X-linked Recessive Allele is the recessive form of a gene residing on the X chromosome. In this post, we will ...
Chromosomes during meiosis divisions – behavior and steps
In this post, we will discuss the behavior of homologous chromosomes during meiosis. Also, we will briefly discuss a few ...
X-linked recessive disorders are more common in males – why?
X-linked recessive disorders are more common in males - why? A Male has one X chromosome and one Y chromosome ...
Alleles and Genotypes for human blood groups – multiple allelism in ABO
Some genes have more than two alleles, and then the pattern of inheritance is called multiple allele inheritance or multiple ...
Photosynthesis – class 11 revision notes
Photosynthesis is a series of reactions in which energy transferred as light is transformed into chemical energy. In this post, ...