Questions

Tetrad is a homologous chromosome pair in the given options. A homologous chromosome pair is a pair of chromosomes one from father and one from mother that has same gene sequence after the process of meiosis.

According to psychologist Erik Erikson, Adolescence is the period of life between childhood and adulthood. They go through the psychosocial crisis of identity versus role confusion, which involves exploring who they are as individuals. During this stage, adolescents explore their independence and develop a sense of self i.e independent identity, ego nature.

An ionic bond is formed between two molecules when transfer of valency electrons take place between them. 

The acid and the nitrite form nitrous acid which then reacts with the amine.

A chemical reaction in which involves the absorption of heat from the environment is called a Endothermic reaction. 

Examples : Dissolving ammonium chloride in water, photosynthesis, melting ice cubes, mixing of potassium chloride with water,...

In the contrast, chemical reactions involving release of heat are known as exothermic reactions.

Examples : Combustion, coal is burnt, mix of CaO with water,...

The femur is the longest bone in the human body. It is also called as thigh bone. Stapes in the shortest bone in the body that is present in the middle ear.