Introduction
Welcome to All CBTs channel!
My name is Ad Bank, and in today’s lesson, we are reviewing 30 JUPEB Biology past questions. These questions are carefully selected from past papers and are highly likely to appear in upcoming JUPEB examinations.
By practicing and understanding these questions, you’ll strengthen your foundation in biology and increase your chances of scoring high in JUPEB.
Let’s get started with the questions and answers.
Question 1: Protozoa and Pseudopodia
Question:
Protozoa that move by pseudopodia belong to which class?
Options:
- A) Ciliophora
- B) Sarcodina
- C) Mastigophora
- D) Apicomplexa
Explanation
Protozoa that use pseudopodia (false feet) for movement belong to the class Sarcodina.
- Ciliophora move using cilia.
- Mastigophora move using flagella.
- Apicomplexa are parasitic protozoa (e.g., Plasmodium).
Correct Answer: B) Sarcodina
Question 2: Bonding Between Complementary Bases
Question:
The bonding between two complementary bases in a nucleotide (e.g., adenine to thymine) is formed by which type of bond?
Options:
- A) Van der Waals force
- B) Covalent bond
- C) Hydrogen bond
- D) Polar force
Explanation
Complementary base pairs in DNA (adenine-thymine and guanine-cytosine) are bonded by hydrogen bonds, allowing the DNA double helix to remain stable but flexible for replication.
Correct Answer: C) Hydrogen bond
Question 3: Basic Unit of Inheritance
Question:
What is the basic unit of inheritance?
Options:
- A) Allele
- B) Locus
- C) Gene
- D) Chromosome
Explanation
The gene is the basic unit of inheritance. It carries instructions for traits passed from parent to offspring, located on chromosomes at specific loci.
Correct Answer: C) Gene
Question 4: Events During Interphase of Mitosis
Question:
Which of the statements describes events during the interphase of mitosis?
Explanation
During interphase, the cell prepares for division by:
- Replicating DNA
- Synthesizing proteins
- Increasing cell size
This phase does not include visible chromosome alignment (metaphase) or separation (anaphase), but it is crucial for successful cell division.
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Conclusion
These JUPEB Biology past questions cover essential concepts like protozoan classification, DNA structure, inheritance, and cell division. Consistent practice with past questions ensures you’re fully prepared for the JUPEB exam.
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