by admin | Aug 8, 2020 | Genetics
We have already studied that every species has a fixed number of chromosomes. And these chromosomes occur in pairs. This means that there are two chromosomes of each kind, or we can say that there are two sets of chromosomes. Thus a cell in which chromosomes occur in...
by admin | Aug 8, 2020 | Genetics
Chromosomes can be classified into four types depending on the position of the centromere in it. These are: 1. Metacentric Chromosomes The chromosomes in which the centromere is in exactly middle position are called metacentric chromosomes. These chromosomes are V...
by admin | Aug 8, 2020 | Genetics
Every plant and animal has fixed number of chromosomes. For example, the human beings have 46 chromosomes in every cell. The chromosomes of each species occur in pairs, out of which one comes from father and the other comes from mother. In this way, we can say that...
by admin | Aug 8, 2020 | Genetics
Chromosomes mean ‘coloured body’. Chromosomes are thread like bodies which are present in the nucleus of a cell and which becomes visible only during cell division. Chromosomes contain hereditary information of the cell. Chromosomes are made up of DNA (Deoxyribo...
by admin | Aug 8, 2020 | Genetics
The term genetics was first of all coined by biologist William Bateson in 1906. It may be defined as the scientific study of the mechanism of inheritance and the causes of variation in living organisms. Heredity or Inheritance The transmission of characters,...
by admin | Aug 8, 2020 | Genetics
It is commonly observed that the individuals of a species are alike, e.g. humans resemble one another and so do the monkeys and dogs. The reason for this resemblance is that the humans are produced by humans alone. In the same ways monkeys are produced by monkeys and...
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