Daily NEET MCQ- April 8, 2022 - NEET MCQ

Protons are not emitted by radioactive substances during their decay. They are positively charged subatomic particles found in the atomic nucleus. The others can be emitted by radioactive substances during their decay.

HCl, known as hydrochloric acid and is not an oxoacid. All oxoacids have the acidic hydrogen bound to an oxygen atom, in HCl the hydrogen is bound to the chlorine atom making it a Lewis acid.

Hypohalous acids are oxoacids in which the hydroxyl group is singly bonded to a halogen. In HOF the hydroxyl group is singly bonded to fluorine making it a hypohalous acid named hypofluorous acid.

Hypochlorous acid is an oxoacid of chlorine in which the hydrogen atom is singly bonded to the oxygen atom and chlorine is also singly bonded to oxygen atom forming a bend structure with bond angle 109.5°.

The chromosomal theory of inheritance was stated by Sutton and Boveri. It talks about the movement of chromosomal pairs independent of each other to reach the metaphase plate during Meiosis I.

The chromosomal theory of inheritance was devised by the observations of the movements of chromosomes during the process of meiosis. According to this theory and the experiments that validate it, the chromosomes segregate independently of each other.

Morgan, along with his students and colleagues, led to the setting up of fruit flies as the model organism. Today fruit fly is used widely for many studies.

Drosophila is the genus of fruit fly. There are many species found in this genus. Drosophila melanogaster has been widely accepted as the model organism.

Thomas Hunt Morgan, along with his colleagues, led to the establishment of fruit flies Drosophila melanogaster as the model organism. It has been used for many studies that have potential applications to human society

Cement is an important building material. The average composition of portland cement is calcium oxide of 50 to 60%, Silicon dioxide of 20 to 25%, aluminium oxide of 5 to 10%, magnesium oxide of 2 to 3%, ferric oxide of 1 to 2% and sulphur trioxide of 1 to 2%.