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Gap 2
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What is the significance of the number 46 concerning DNA?
Chromosomes are comprised of DNA. Chromosomes are located inside the nucleus of every cell. There are exactly 46 chromosomes in every one of your body's cells.
What is the function of the chromatain?
The chromatain have four major functions. They package DNA into a smaller volume to fit in the cell. They strengthen the DNA to allow mitosis, and they prevent damage to DNA. Chromatain control gene expression and DNA replication.
What do chromosomes do for a cell?
A chromosome is an organized structure of DNAand Proteinthat is found in Cell_(biology).Itis a single piece of coiled DNA containing many Gene, Regulatory_sequenceand other Genetic_sequence. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions.
What is the probability of producing a male offspring?
you have a 50/50 chance of producing both a male and female offspring, it really depends on whether or not your offspring's DNA will have XY chromosomes (male) or XX chromosomes (female)
What is the point of attachment between two chromatids?
The point of attatchment between two chromatids is called the centromere. When two chromatids are connected, it is called a chromosome which is essential in DNA replication, or, mitosis.
During which phase does the chromatin condense into chromosomes?
The chromosomes coil up and condense during prophase
The phase during mitosis in which DNA separates into pairs of chromosomes is?
The phase during mitosis in which DNA separates into pairs of chromosomes is called prophase. During prophase, the chromosomes condense and become visible as distinct structures before the actual separation occurs during later stages of mitosis.
What phase is when chromosomal material replicates?
Chromosomes are replicated during DNA replication, which occurs during interphase.
The phase of mitosis in which doubling of the centrioles occurs is?
The phase of mitosis in which doubling of the centrioles occurs is the G1 phase. During this phase, the centrioles replicate to ensure that each daughter cell will receive a complete set of centrioles.
What condenses into a chromosomes?
DNA
Which step of mitosis involves the condensing of DNA into chromosomes?
The prophase phase is when DNA winds up into chromosomes. It winds up to remain organized. Cytokinesis is when the DNA unwinds again.
Does DNA replication occur after telophase 1?
No, DNA replication occurs before meiosis, during the S-phase of interphase. Once meiosis begins, the DNA is already replicated, and the duplicated chromosomes are separated during meiosis I and II.
When the M phase begins during the cell cycle it starts with?
When the M phase, or mitosis, begins during the cell cycle, it starts with prophase. Prophase is the first stage of mitosis where chromatin condenses into visible chromosomes, the nuclear membrane breaks down, and the mitotic spindle begins to form.
At what phase of mitosis does the DNA become most visible?
During prophase, the DNA condenses into tightly coiled structures called chromosomes, making them highly visible under a microscope. This condensation allows for easier segregation of genetic material during cell division.
Which period are chromosomes duplicated in?
Chromosomes are duplicated during the S phase of the cell cycle, which occurs during interphase. This is when DNA replication takes place to ensure that each daughter cell receives a complete set of chromosomes during cell division.
Chromosomes are duplicated during?
Chromosomes are duplicated during a cell division phase called S phase of interphase, which occurs before mitosis or meiosis. This duplication ensures that each daughter cell receives an exact copy of the genetic material.
Does a cell make a copy of its DNA during the stage of the cell cycle called mitosis?
No. Mitosis is strictly the stage of the cell cycle where the chromatin condenses into chromosomes, the nuclear envelope dissolves, the chromosomes line up on the metaphase plate, spindly fibers attach to the kinetochores of each chromosome and "pull" sister chromatids apart to opposite poles of the cell. Then the cell pinches off and forms a nuclear envelope around the DNA. The stage in the cell cycle where a cell duplicates its genetic material is called the S phase, preceded by the G1 phase, followed by the G2 phase, then mitosis and cytokinesis.
