The Determining Factor Of The Sex Of A Child

A child is a harbinger of joy in the family.When we look at the human race we find it is divided into two sexes-male and female.The questions that immediately arise in our minds are: Why don't all people belong to one sex?What is it that determines the sex of a child?A woman becomes capable of bearing a child after she starts menstruation .Between the 10th and the 18th days from on the...

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How the Sleep-Walking occurs in human

A sleep-walker walks or performs other actions during sleep.Sleep-walking is otherwise known as 'Somnambulism'. Some people have a peculiar habit of getting up from bed at night, changing clothes and going out for a walk.And while doing all these things they still remain in the state of sleep.They are not conscious of what they do in that state.  To know why this happens,we must stand what sleep...

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Who was Hugo de Vries and what his achievements

Dutch botanist and geneticist Hugo de Vries is chiefly known for suggesting the concept of genes and for developing a mutation theory of evolution.De Vries was born in 1848.In his experiments on the evening primrose, in 1900,De Vries rediscovered Mendel's laws of heredity and developed his own theory that he published in his book "The Mutation Theory".He explained mutations as sudden, unpredictable...

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Welcome to my Science Lab

Hello,I am Akash Rock and I will soon show you the Posts related to science.This blog shows you the Knowledges about science and I know that you enjoy for my posts.Because,Science is the most Important subject in our life and everybody wants to know about science.So,Please like my post...

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