A)What is the name given to the process by which a parent cell becomes two identical daughter cells?(1 point) Responses differentiation differentiation senescence senescence meiosis meiosis mitosis
mitosis
The name given to the process by which a parent cell becomes two identical daughter cells is called mitosis.
To determine the correct answer, you can break down the options and understand their definitions:
- Differentiation: The process by which cells become specialized in structure and function. This does not involve the formation of two identical daughter cells.
- Senescence: The gradual deterioration of cell function and replication capacity over time. This is not related to cell division.
- Meiosis: The process by which cells divide to form reproductive cells with half the number of chromosomes. This is not the process of a parent cell dividing into two identical daughter cells.
- Mitosis: The process of cell division by which a parent cell duplicates its genetic material and divides into two identical daughter cells. This is the correct answer.
Therefore, the correct answer is mitosis.
A)A scientist looks into a microscope and sees that replicated chromosome pairs are lined up in the center of a cell. The scientist then sees the mitotic spindle from each side of the cell attach to a chromosome. Which mitotic phase is the scientist likely witnessing?(1 point) Responses anaphase anaphase metaphase metaphase telophase telophase prophase
The scientist is likely witnessing the metaphase phase of mitosis.
During metaphase, replicated chromosome pairs line up at the center of the cell, forming what is known as the metaphase plate. This alignment allows for proper segregation of genetic material into the daughter cells. At this stage, the mitotic spindles from opposite sides of the cell attach to each chromosome, preparing for the subsequent separation of sister chromatids during anaphase.
Therefore, the correct answer is metaphase.