Questions

A Portfolio is a collection of projects or programs and other work that are grouped together to facilitate effective management of that work to meet strategic business objectives.

A Project is a temporary endeavour undertaken to create a unique product, service or result.

Characteristics:

1.Temporary 

    Temporary means that every project has a definite beginning and a definite end.

2. Unique Products, Services or Results

   Uniqueness is an important characteristic of project deliverables. For example, many thousands of office buildings have been developed, but each individual facility is unique - different owner, different design, different location, different contractors, and so on.

3. Progressive Elaboration

   Progressive elaboration means developing in steps, and continuing by increments . For example, the project scope will be broadly described early in the project and made more explicit and detailed as the project team develops a better and more complete understanding of the objectives and deliverables.

Yes, it can be used, if an accurate clock frequency  is not required. also the component cost is low compared to LC or Crystal.

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. 

The principle of dominance states that some alleles are dominant, while others are recessive.

Phenol with a molecular formula [C₆H₅OH] is also called as Carbolic Acid. It is a white poisonous clear compound with sweet smell. It is used in making plastics, detergents and drugs.

Uranus is 2,870 million kilometers away from the sun and the time taken to complete one round at a speed of 6.8 km/sec is as  long as 84 years on earth

Venus has a very high surface temperature of 500o Cand the pressure is 90 times that on the earth.