Biology

Cell Cycle and Chromosomes

1,348 Questions

Explore a curated list of questions covering the cell cycle, mitosis, and meiosis. Topics include DNA replication, chromosomal structures, and genetic disorders. This material is essential for students preparing for biology and general science competitive exams.

Cell cycle eventsDNA replicationMeiosis processChromosomal structuresGenetic disorders

Cell Cycle and Chromosomes Questions

Multiple choice

What is the name of the process by which cells divide?

  1. Mitosis

  2. Meiosis

  3. Cytokinesis

  4. Karyokinesis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mitosis is the process by which cells divide. It is a continuous process that consists of four distinct stages: prophase, metaphase, anaphase, and telophase.

Multiple choice

Which of the following is NOT a type of cell division?

  1. Binary fission

  2. Budding

  3. Fragmentation

  4. Sporulation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sporulation is not a type of cell division, but rather a process by which some microorganisms produce spores.

Multiple choice

Which of the following genes is associated with Down syndrome?

  1. Trisomy 21

  2. Trisomy 18

  3. Trisomy 13

  4. Monosomy X
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Down syndrome is caused by the presence of an extra copy of chromosome 21, known as trisomy 21.

Multiple choice

What is the basic unit of heredity?

  1. Gene

  2. Chromosome

  3. Nucleotide

  4. Protein
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A gene is a region of DNA that codes for a specific protein. Proteins are the building blocks of cells and are responsible for a wide range of functions, including metabolism, growth, and reproduction.

Multiple choice

What is the difference between mitosis and meiosis?

  1. Mitosis produces two identical daughter cells, while meiosis produces four daughter cells that are genetically different from each other.

  2. Mitosis produces four daughter cells that are genetically identical to each other, while meiosis produces two daughter cells that are genetically different from each other.

  3. Mitosis produces two daughter cells that are genetically different from each other, while meiosis produces four daughter cells that are genetically identical to each other.

  4. Mitosis produces four daughter cells that are genetically different from each other, while meiosis produces two daughter cells that are genetically identical to each other.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mitosis is a type of cell division that produces two identical daughter cells. Meiosis is a type of cell division that produces four daughter cells that are genetically different from each other.

Multiple choice

What is the term for the process of moving a gene from one chromosome to another?

  1. Transposition

  2. Transduction

  3. Transformation

  4. Conjugation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Transposition is the process of moving a gene from one chromosome to another.

Multiple choice

What is the term for the process by which a cell divides to produce two identical daughter cells?

  1. Differentiation

  2. Proliferation

  3. Migration

  4. Determination
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Proliferation is the process by which a cell divides to produce two identical daughter cells, increasing the number of cells in an organism.

Multiple choice

The process by which cells divide into two identical daughter cells is called:

  1. Mitosis

  2. Meiosis

  3. Cytokinesis

  4. Binary fission
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mitosis is the process by which cells divide into two identical daughter cells. It is a continuous process that can be divided into four stages: prophase, metaphase, anaphase, and telophase.

Multiple choice

The process by which cells divide into four haploid daughter cells is called:

  1. Mitosis

  2. Meiosis

  3. Cytokinesis

  4. Binary fission
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Meiosis is the process by which cells divide into four haploid daughter cells. It is a two-stage process that involves two rounds of division: meiosis I and meiosis II.

Multiple choice

The process by which a cell divides into two unequal daughter cells is called:

  1. Mitosis

  2. Meiosis

  3. Cytokinesis

  4. Binary fission
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cytokinesis is the process by which a cell divides into two unequal daughter cells. It occurs after mitosis or meiosis and involves the division of the cytoplasm and cell membrane.

Multiple choice

The process by which bacteria divide into two identical daughter cells is called:

  1. Mitosis

  2. Meiosis

  3. Cytokinesis

  4. Binary fission
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Binary fission is the process by which bacteria divide into two identical daughter cells. It is a simple process that involves the replication of the DNA molecule and the division of the cell into two equal parts.

Multiple choice

Which of the following is NOT a type of cell division:

  1. Mitosis

  2. Meiosis

  3. Cytokinesis

  4. Budding
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Budding is not a type of cell division. It is a process by which some yeasts and bacteria reproduce. In budding, a new cell grows out of the side of the parent cell and eventually detaches to form a new individual.

Multiple choice

Which of the following is NOT a type of cell cycle checkpoint?

  1. G1 checkpoint

  2. G2 checkpoint

  3. M checkpoint

  4. S checkpoint
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There is no S checkpoint in the cell cycle.