Science Biology MCQ-235

General Science-Biology objective Quiz for DelhiPolice, NDA, PSU, RRB, SSC, UPSC, CDS, MPPSC Exams

Most highly intelligent mammals are


Most of the red. blue and purple colours of plants are due to a pigment called


Movement of cell against concentration gradient is called


Movements due to light are shown by


Mumps is a disease caused by


Mutation is


Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes


Myopia is connected with


N2 content is kept constant in the biosphere due to


Neurospora is used as genetic material because


Night blindness is caused by lack of which vitamin?


Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?


Norepinephrine increases


Normal adult human male has


Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by


Number of chromosomes in Down’s syndrome is


Nymph is the name of young one of


O2 released in the process of photosynthesis comes from


Of the following taxonomic categories which is the most inclusive (i.e., is the highest in hierarchy)?


On which of the following plants did Gregor Mendel perform his classical experiment?


One day, you wake up with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that an antibiotic will not help you get better. Which of the following is the most likely reason for the doctor’s statement?


One of the following is most suitable for study of mutations,


One of the following is not a function of bones.


Ordinary table salt is sodium chloride. What j is baking soda?


Organic substances which, in very small amounts, control growth and development are called