Mitosis & Meiosis

Front

What is mitosis?

Back

Mitosis is the process of cell division that results in two genetically identical daughter cells, each with the same number of chromosomes as the parent cell.

Front

What is meiosis?

Back

Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four genetically diverse daughter cells, each with half the number of chromosomes of the parent cell.

Front

How many chromosomes do human somatic cells have?

Back

Human somatic cells have 46 chromosomes, arranged in 23 pairs.

Front

What is the role of the spindle fibers during mitosis?

Back

Spindle fibers help separate the chromosomes and pull them to opposite poles of the cell during mitosis.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable physical characteristics of that organism.

Front

What happens during the S phase of the cell cycle?

Back

During the S phase, DNA replication occurs, resulting in the duplication of chromosomes.

Front

What is the purpose of the G1 phase in the cell cycle?

Back

The G1 phase is a period of cell growth and development before DNA replication begins.

Front

What is crossing over in meiosis?

Back

Crossing over is the exchange of genetic material between homologous chromosomes during prophase I of meiosis, leading to genetic variation.

Front

What is the end result of meiosis?

Back

The end result of meiosis is four haploid gametes, each with half the number of chromosomes of the original cell.

Front

What is the significance of the G2 phase?

Back

The G2 phase is the final phase of interphase where the cell prepares for mitosis, ensuring all DNA is replicated and the cell is ready to divide.