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