Questions

Gene is a hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism.

In short it is a piece or segment of chromosome.

Genes undergo mutation when their DNA sequence changes. 

Oxygen crosses a plasma membrane by Osmosis.

Production costs to an economist reflect opportunity costs.

The purpose of the Preamble is to clarify

1. who has made the Constitution,

2. what is the ultimate sanction behind it,

3. what are its goals and objectives,

4. what is its source (and)

5. what is the nature of the polity which is sought to be established by the Constitution.

Actually, the preamble is the opening statement to the United States Constitution.

The words in the Preamble ::

 'We the people of India, in our Constituent Assembly, do hereby adopt, enact and give to ourselves this Constitution'.

During protein synthesis process, each tRNA carries one aminoacid for protein synthesis to the ribosomes.

India’s heaviest satellite GSAT-11 launched successfully from French Guiana. GSAT-11 is going to provide high data connectivity of 16 GBPS to the country.

China blocked wikipedia in all languages recently in May 2019.