Biology Questions

Q:

Bacteria divide by

A) Binary Fission B) Spirilla
C) RNA D) Fusion
 
Answer & Explanation Answer: A) Binary Fission

Explanation:

Bacteria divided and reproduce by Binary fission. In this process, the bacterium, which is a single cell, divides into two identical daughter cells. Binary fission begins when the DNA of the bacterium divides into two replicates.

Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

3 1973
Q:

Systems biology is mainly an attempt to

A) Understand the behavior of entire biological systems B) Speed up the technological application of scientific knowledge
C) Analyze genomes from different species. D) None of the above
 
Answer & Explanation Answer: A) Understand the behavior of entire biological systems

Explanation:

An approach to studying biology that aims to model the dynamic behavior of whole biological systems based on a study of the interactions among the system's parts.

Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

1 1972
Q:

Variation in human skin color is an example of

A) Heredity B) Polygenic traits
C) Multiple alleles D) Incomplete dominance
 
Answer & Explanation Answer: B) Polygenic traits

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

3 1971
Q:

The notable hardness of bone is attributed to

A) the presence of inorganic hydroxyapatites B) the presence of glycoproteins
C) the presence of collagen fibers D) the presence of cartilage
 
Answer & Explanation Answer: A) the presence of inorganic hydroxyapatites

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk

2 1970
Q:

Atrophy is a condition that occurs when

A) muscle decreases in size and function because of disease or trauma B) carbon dioxide, lactic acid, and other wastes accumulate in the muscle
C) increased use of skeletal muscle causes an increase in its strength D) the tendons that attach muscle to bone become stretched or injured
 
Answer & Explanation Answer: A) muscle decreases in size and function because of disease or trauma

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE
Job Role: Analyst

1 1967
Q:

Which of the following is considered a modified stem?

A) Tendril B) Taproot
C) Petiole D) Tuber
 
Answer & Explanation Answer: D) Tuber

Explanation:

Tuber is considered as a modified stem. These type of stems carry out special functions that are important for the plant to survive. Tubers serves as a food reserve and bearing buds wherein new plants can grow.

Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO

3 1964
Q:

Which one of the following statements about lymph is correct?

A) Lymph is formed due to leakage of blood through capillaries. B) Lymph contains blood cells such as RBC.
C) Lymph is also circulated by the blood circulating heart. D) Lymph only transports hormones.
 
Answer & Explanation Answer: C) Lymph is also circulated by the blood circulating heart.

Explanation:

The lymphatic system is a complex system of fluid drainage and transport, and immune response and disease resistance. Fluid that is forced out of the bloodstream during normal circulation is filtered through lymph nodes to remove bacteria, abnormal cells and other matter. This fluid is then transported back into the bloodstream via the lymph vessels. Lymph only moves in one direction, toward the heart.

Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: Bank Exams

1 1964
Q:

Which stage of cellular respiration produces the most ATP?

A) Glycolysis B) Kreb's cycle
C) Electron transport chain D) All the above
 
Answer & Explanation Answer: C) Electron transport chain

Explanation:

There are 3 stages in cellular respiration. They are:

1. Glycolysis

2. Kreb's cycle

3. Electron transport chain

 

Here, Glycolysis produces only 2 ATP whereas Kreb's cycle produces no ATP. Electron transport chain of the cellular respiration produces the maximum ATP.

Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

0 1961