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Part of the cell cycle where the DNA is condensed into tightly wound units called chromosomes is?
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What thread like structures in a cells nucleus?
They are called chromosomes. They are basically like data storage. When ta cell divides in 2, the chromosomes go through a process called the cell cycle.
What is 'metaphase'?
Metaphase, from the ancient Greek μετα (after) and φασις (stage), is a stage of mitosis in the eukaryotic cell cycle in which condensed chromosomes, carrying genetic information, align in the middle of the cell before being separated into each of the two daughter cells.For the source and more detailed information concerning this subject, click on the related links section (Answers.com) indicated below.basically, when all the chromosomes line up.
If a mutation made histone proteins bind less tightly to DNA how might the cell cycle be affected?
So if the histones are not properly binding to the DNA then the DNA will not be able to condense into chromosomes, which it needs to do for mitosis to occur. So basically, mitosis will not occur.
Which does not control the cell cycle?
The cell cycle is controlled by specific cyclins, which are proteins that regulate the cell cycle.
You wont see chromosomes in this longest stage of the cell cycle?
During Interphase the DNA is not in the form of chromosomes. It is not until Prophase that it condenses and chromosomes become visible.
Chromatin is found in what phase of the cell cycle?
The phase of the cell cycle that chromatin is found in is in Interphase and part of phrophase. In interphase, chromatin is present. In prophase (which is part of mitosis), chromatin is being condensed into chromosomes.
Does an animal cell have chromatin?
Yes, DNA, the genetic material in the cell, can take different forms depending on where the cell is in its life cycle. During mitosis DNA gets tightly bundled up into the recognizable shapes we know as chromosomes. But for most of a cells life it is in interphase when DNA doesn't need to be tightly bundled and so it unwinds into a squiggly mess called chromatin.
What is the beginning point of mitosis?
The first stage of actual mitosis is prophase when the chromosomes are condensed and are forming rodlike structures. The first stage of the cell cycle, however, is interphase, when the cell is resting, growing, and copying its DNA.
What happens in the first stage of the cell cycle in a eukaryotic cell?
In the first stage, called interphase, the cell grows and copies its organelles and chromosomes. After each chromosomes is duplicated, the two copies are called chromatids.
During which phase of the cell cycle are duplicated chromosomes present?
The S phase in the interphase. Chromosomes are copied in the interphase part of the cell cycle S phase would be the answer. It is during Interphase (G1, S, G2) that they are copied. SO dependant on your answers it's either interphase or S.
Where in the cell cycle are chromosomes replicated?
The chromosomes are replicated during interphase.
What is the process called 'water cycle?
It is the process in which water gets evaporated from heat of sun. It gets condensed to form water droplets and precipitate.
What happens during the first stage of the cell cycle in a eukaryotic cell?
In the first stage, called interphase, the cell grows and copies its organelles and chromosomes. After each chromosomes is duplicated, the two copies are called chromatids.
During what cell can chromosomes be seen clearly?
In the early stages of mitosis or meiosis (cell division), the chromatin strands become more and more condensed. They cease to function as accessible genetic material (transcription stops) and become a compact transportable form. This compact form makes the individual chromosomes visible, and they form the classic four arm structure, a pair of sister chromatids attached to each other at the centromere. The shorter arms are called p arms (from the French petit, small) and the longer arms are called q arms (q follows p in the Latin alphabet). This is the only natural context in which individual chromosomes are visible with an optical microscope.
Which stage of cells cycle do the chromosomes replicated?
Chromosomes replicate when DNA replicates during the S phase (synthesis) of of the cell cycle.
Why are all chromosomes condense during all stages of the cell cycle?
When replicating or during transcription, DNA needs to uncoil in order to give the proper code. When the chromosomes are condensed, it cannot uncoil itself to give any sort of message. In order for the cell to remain functional, it must be able to code DNA.
How does the structure of a eukaryotic chromosome during mitosis differ from its structure during the rest of the cell cycle?
During cell division, chromosomes are condensed. They coil and supercoil, becoming thousands of times shorter and much fatter, so that they are visible under a light microscope.Being condensed, the chromosomes move freely through the cell during metaphase and anaphase without tangling.Much of prophase is taken up with this condensation, and much of telophase with its opposite: extension.During interphase, chromosomes need to expose sequences of nucleotides as templates for nucleic acid synthesis (transcription and replication). The chromosomes therefore have to be fully uncoiled (extended).
