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mcq on Organization of Life for Students
In which phase is chromatin loosely packed?
a. Anaphase
b. Metaphase
c. Prophase
d. Interphase
Option c – Prophase
During which stage do spindle fibres vanish?
a. Anaphase
b. Metaphase
c. Telophase
d. Prophase
Option c – Telophase
In which phase does the nuclear envelope break down?
a. Anaphase
b. Prophase
c. Metaphase
d. Interphase
Option b – Prophase
When does chromosome number become doubled?
a. Anaphase
b. Interphase
c. Prophase
d. Metaphase
Option a – Anaphase
Haploid cells contain:
a. One chromosome SET
b. Two chromosome sets
c. Three chromosome sets
d. Multiple chromosome sets
Option a – One chromosome SET
Polyploidy refers to a condition with:
a. One chromosome SET
b. Two chromosome sets
c. Three chromosome sets
d. Many chromosome sets
Option d – Many chromosome sets
Meiosis results in daughter cells that are:
a. Haploid
b. Diploid
c. Triploid
d. Polyploid
Option a – Haploid
How many daughter cells are formed after meiosis?
a. 2
b. 4
c. 6
d. 8
Option b – 4
Which tissue is mainly affected in carcinoma?
a. Lung
b. Bone
c. Muscle
d. Red blood cells
Option a – Lung
Which among the following is considered a carcinogenic substance?
a. Sugar
b. Table Salt
c. Tobacco
d. Milk
Option c – Tobacco
Which is not considered a carcinogen?
a. DDT
b. Aflatoxin
c. Saccharin
d. Glucose
Option b – Aflatoxin
Which type of cancer is most prevalent among women?
a. Liver cancer
b. Lung cancer
c. Breast cancer
d. Bone cancer
Option c – Breast cancer
Identify the organism that is a type of algae:
a. Volvox
b. Donkey
c. Tamarind tree
d. Drosera
Option a – Volvox
Which plant tissue has lignin as a main component in its cell walls?
a. Chlorenchyma
b. Aerenchyma
c. Storage tissue
d. Sclerenchyma
Option d – Sclerenchyma
What are the cells of areolar tissue called?
a. Osteocytes
b. Mesocytes
c. Fibroblasts
d. None of these
Option c – Fibroblasts
Nucleated red blood cells can be observed in:
a. Fish
b. Amphibians
c. Reptiles
d. All of the above
Option d – All of the above
Which muscles help in the movement of arms and legs?
a. Striated muscles
b. Smooth muscles
c. Cardiac muscles
d. All of these
Option a – Striated muscles
The average lifespan of red blood cells is:
a. 12 days
b. 20 days
c. 100 days
d. 120 days
Option d – 120 days
Fat storage in the body occurs in:
a. Adipocytes
b. Platelets
c. Glial cells
d. Fibroblasts
Option a – Adipocytes
Which of the following is entirely composed of muscle tissue?
a. Heart
b. Skin
c. Tooth
d. Bone
Option a – Heart
Which substance is referred to as a Fluid connective tissue?
a. Urine
b. Blood
c. Water
d. Saliva
Option b – Blood
Red blood cells are also known as:
a. Lysosomes
b. Nucleus
c. Endoplasmic reticulum
d. Erythrocytes
Option d – Erythrocytes
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