Practice Questions banks - general science mcq Online Quiz (set-1) For All Competitive Exams

Q-1)   Which one of the following is primarily concerned with cell division ?

(a)

(b)

(c)

(d)


Q-2)   In which part of a flower do both meiosis and fertilization occur?

(a)

(b)

(c)

(d)


Q-3)   Bidirectional translocation of minerals takes place in

(a)

(b)

(c)

(d)


Q-4)   Which of the following statement(s) is/are true?
  1. Synapsis of homologous chromosomes takes place during prophase I of meiosis.
  2. Division of centromeres takes place during anaphase I of meiosis.
  3. Spindle fibres disappear completely in telophase of mitosis.
  4. Nucleoli reappear at telophase I of meiosis.

(a)

(b)

(c)

(d)

Explanation:

Division of centromeres takes place during Anaphase II of meiosis.


Q-5)   Translocation of carbohydrate nutrients usually occurs in the form of

(a)

(b)

(c)

(d)

Explanation:

Translocation of organic solutes occur through sieve tubes in the form of sucrose. Transportable form of sugar is sucrose.


Q-6)   When ants bite, they injec

(a)

(b)

(c)

(d)


Q-7)   The involvement of which one of the following is essential in the control of blood sugar?

(a)

(b)

(c)

(d)


Q-8)   Which part of human brain is concerned with the regulation of body temperature?

(a)

(b)

(c)

(d)


Q-9)   Match List-I with List-II and select the correct answer using the code given below the lists.
List-I List-II
A. Agroforestry 1. Growing plant without soil in water containing nutrient 9
B. Hydroponics 2. Growing of tree with cultivation of crop in the same field
C. Pomology 3. Study of fruits
D. Palynology 4. Study of pollen grains
Select the correct answer using the codes given below the lists: A B C D

(a)

(b)

(c)

(d)

Explanation:


Q-10)   Which of the following statements are incorrect?
  1. Aves are cold-blooded, egg-laying and have four-chambered hearts.
  2. Aves have feather-covered bodies, forelimbs are modified as wings and breathe through lungs.
  3. Most mammals are viviparous. 4. Fishes, amphibians and reptiles are oviparous.
Choose the correct option :

(a)

(b)

(c)

(d)

Explanation:

Aves are warm-blooded, egg-laying and have a four-chambered heart. Amphibians and reptiles are oviparous but in super class Pisces, 2 classes Chondrichthyes and Osteichthyes are present where Chondrichthyes have internal fertilisation and many of them are viviparous and Osteichthyes are mostly oviparous and development is direct.