Table of Contents
What is in the nucleus during interphase?
The chromosomes of a cell are contained within its nucleus during interphase. This chapter discusses interphase nucleus with respect to its morphology, chemical composition, and metabolic activity. The protamines and histones are basic proteins found combined with DNA in many nuclei.
What is the term used to describe the division of the nuclear contents?
Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus.
What describes DNA during interphase?
During interphase, the cell’s DNA is not condensed and is loosely distributed. A stain for heterochromatin (which indicates the position of chromosomes) shows this broad distribution of chromatin in a mouse cell (upper left). The same stain also shows the organized, aligned structure of the chromosomes during mitosis.
Is nuclear membrane present in interphase?
The nuclear membrane is present (and essential) during all periods of interphase. The main functions of interphase are the synthesis of cellular proteins, DNA replication, and cellular growth.
What happens to the centrosome during interphase?
During interphase, a centrosome is also called a microtubule organizing center (MTOC). During G1, the centrioles move slightly away from each other, where they will remain until mitosis begins. Centriole duplication initiates during late G1. During the S or synthesis phase, the centrosome completes replication.
What happens during interphase answers?
During interphase, the cell grows and makes a copy of its DNA. During the mitotic (M) phase, the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells.
Where is nuclear division?
Nuclear divisions occur in both mitosis and meiosis. In mitosis, the result is the division of duplicated copies of genome into two. In meiosis, nuclear division occurs twice, dividing the originally single nucleus into four nuclei that are genetically different from one another.
What is the division of the cytoplasm called?
Cytokinesis
Cytokinesis is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells. It occurs concurrently with two types of nuclear division called mitosis and meiosis, which occur in animal cells.
Which process occurs during interphase?
What occurs during interphase quizlet?
What happens during Interphase? The cell grows, replicates its DNA, and prepares to begin mitosis. The spindle fibers SPLIT APART the sister chromatids and move them to opposite ends of the cell, equally dividing the genetic material.
What happens to the centrosome during interphase quizlet?
Describe what happens to the centrosome during interphase and then prophase. During interphase, a cell that is about to divide grows and copies its chromosomes in preparation for cell division. During prophase, the centrosomes move away from each other, propelled partly by the lengthening microtubules around them.
What happens during the interphase?
During interphase, the cell grows and DNA is replicated. During the mitotic phase, the replicated DNA and cytoplasmic contents are separated, and the cell divides. Interphase is followed by the mitotic phase. During the mitotic phase, the duplicated chromosomes are segregated and distributed into daughter nuclei.