Questions

Bookkeeper is the only English word that has three consecutive double letters.

It returns -1

Genes which are segment of DNA of a cell contains instructions for assembling proteins.

The most important polymer present in the nucleus is DNA- the master molecule. It is a polymer of Nucleotides.

Egypt is called as the gift of the Nile river. It is called so because the nile river served as means for transport, help in irrigation for farming, made soil fertile for growing crops. It made the Egyptian civilization possible. 

A Mixture is a material made up of two or more different substances which are mixed.

Mixtures can be either homogeneous or heterogeneous.

* A homogeneous mixture is a type of mixture in which the composition is uniform and every part of the solution has the same properties.

* A heterogeneous mixture is a type of mixture in which the components can be seen, as there are two or more phases present.

Air is a homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances.

A person that believes completely in fate is a fatalist, or sometimes predestinarianist or determinist.