Questions

Random mutations are the ultimate source of genetic variation. Mutations are likely to be rare and most mutations are neutral or deleterious, but in some instances, the new alleles can be favored by natural selection. Polyploidy is an example of chromosomal mutation.

Mutations are changes in the DNA. A single mutation can have a large effect.

1) mutation - an alteration in DNA sequence, various types

2) intragenic recombination - results in entirely new associations of genes not present in either parental genome.

Two forms of intragenic recombination:

a) crossing over
b) independent assortment
3) reticulation – acquisition of genetic material from unrelated or relatively unrelated sources (e.g., hybrid species, horizontal gene transfer).

The Right of Children to Free and Compulsory Education Act or Right to Education Act (RTE) which describes the importance of free and compulsory education for children between 6 and 14 in India is enacted under Article 21A of the Indian Constitution.

Telecom Secretary J S Deepak was on Wednesday named India’s next Ambassador to the World Trade Organisation (WTO) from June this year. A 1982 batch IAS officer from Uttar Pradesh, Deepak, who is at present attending the World Mobile Congress at Barcelona, has been shifted with “immediate effect” from the telecom ministry and has been made Officer on Special Duty in the commerce department.

Mahesh Kumar Jain was appointed as MD and CEO of IDBI bank in April 2017.

It gets contaminated by lead

A place where bees are kept is called as an apiary.

Stalk means the main stem of a herbaceous plant.

Synonyms for Stalk are - Shoot, trunk, cane, bent, reed, straw, bine, stock,...

We know that, there are three main types of rocks. They are

1. Metamorphic

2. Sedimentary (and)

3. Igneous

Granite is an example of igneous type of rock. These type of rocks are formed through the cooling and solidification of magma and lava.