Questions

Microscopes are of three types. They are :

1) Optical microscopes

2) Electron microscopes

3) Scanning tunneling microscopes

Scanning tunneling microscopes are the microscopes that are used to view metal surfaces.

The statements true about viruses are :

1. The capsid enters the host cell if the virus is enveloped.

2. Enveloped viruses bud from the host cell. 

3. HIV contains reverse transcriptase.

4. A retrovirus contains RNA.

The term facultative anaerobe refers to an organism that which uses oxygen when it is present or grows without oxygen when it is not there.

Deficiency of Vitamin C causes Scurvy, Swelling of gums etc.Vitamin K causes Non-clotting of blood ,Vitamin D causes Rickets in children and Osteomalasia in adults, Vitamin B 1 causes Beriberi,B2 causes Cracking of skin,reddish eye,cracking of tongue,B3 causes Whitening of hair ,mentally retardness ,B5 causes Pallagra or 4D syndrome,B6 causes Anemia,skin disease ,B7 causes Paralysis,hair falling,B11 causes Dysentery and B12 causes Jaundice and Teroile Glutemi

Indore city was adjudged as India's Cleanest City for the third consecutive year as per Swachh Survekshan 2019.

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'.

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.