the process of heredity

Introduction - Once, a very beautiful actress met the famous English playwright, George Bernard Shaw. She wanted to propose to him and whispered, "Will it not be wonderful if our child has my beauty and your brains?" To this Bernard Shaw retorted, "What if the child has your brains and my looks!" W..

Chromosomes store and transmit the coded information which is responsible for all the life processes of an organism. Hence, chromosomes are commonly described as carriers of heredity..

Chromosomes (chroma = colour, soma = body) are tiny thread-like structures found in the nucleus of a cell. In a non-dividing cell they appear as a chromatin network while during cell division they become condensed to form short and thick chromosomes. Chromosomes are unique cell structures whi..

It is a double stranded molecule with each strand being made up of many nucleotide units. Each nucleotide is made up of a nitrogenous base, a sugar molecule and a phosphoric acid molecule. Nitrogenous bases are of two kinds: purines pyrimidines The nitrogenous bases present in DNA are adenine and g..

Chromosomes (chroma = colour, soma = body) are tiny thread-like structures found in the nucleus of a cell. In a non-dividing cell they appear as a chromatin network while during cell division they become condensed to form short and thick chromosomes. Chromosomes are unique cell structures which are..

It is a cross involving two pairs of contrasting characters. For this experiments on dihybrid inheritance. Mendel selected the contrasting characters in the seed coat and cotyledons. He conducted a cross pollination between a pure breeding plant with round seed coat and yellow coloured cotyledons a..

(geographic isolation) During allopatric speciation, a population splits into two geographically isolated allopatric populations. New speciation starts because populations are prevented from interbreeding. Scientists think that geographic isolation is a common way for the process of spec..

Once, a very beautiful actress met the famous English playwright, George Bernard Shaw. She wanted to propose to him and whispered, "Will it not be wonderful if our child has my beauty and your brains?" To this Bernard Shaw retorted, "What if the child has your brains and my looks!" What do you thi..

Nucleic acids are responsible for many biological functions. Nucleic acids control heredity on a molecular level. The important functions performed by nucleic acids are replication and protein synthesis. The DNA is the hereditary information of the organism which is coded in the form of ..

The study of morphology also reveals some organisms that form links between two different groups. This is further evidence that evolution has taken place and it also shows the direction taken by the process of evolution. These organisms that show the features of two different groups are ..