Biology

Homologous Chromosome – definition

Diploid individuals have paired chromosomes. For example, in humans, there are 23 pairs of chromosomes totaling 46 chromosomes. In a diploid individual, each pair of chromosomes represents homologous chromosomes, one chromosome from the father and another from the mother. In a diploid individual, a gene with 2 alleles, has one in each chromosome of the […]

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 segregation of genes or Law of purity of gametes, and Law of independent assortment. Mendel’s Laws of Inheritance – 3 laws of inheritance Here, we will discuss 3 laws of Inheritance: (1) Law of Dominance […]

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 discuss the sex-linked features determined by X-linked Recessive Alleles. X-linked Recessive Alleles and their sex-linked features In the next section, we have discussed X-linked Recessive Alleles and their sex-linked features. Sex-linked features determined by recessive […]

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 important features of meiosis and how chromosomes behave in each step. For gametes to be formed, special cells in the sex organs of the organism divide by a process known as meiosis.When a cell divides […]

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. The single recessive gene resides on the X chromosome. The Y chromosome doesn’t contain most of the genes on the X chromosome. Because of that, it can’t protect the male from a genetic disorder. Diseases […]

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, we have presented important information and facts on the Photosynthesis process. This post is apt for class 11 students of different boards (like ISC board, CBSE board, etc.) and NEET aspirants. Important: This post is […]

Scroll to top
error: physicsTeacher.in