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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.
The phase during mitosis in which DNA separates into pairs of chromosomes is?
prophase
During which phase does the chromatin condense into chromosomes?
The chromosomes coil up and condense during prophase
What phase is when chromosomal material replicates?
Chromosomes are replicated during DNA replication, which occurs during interphase.
What condenses into a chromosomes?
DNA
The phase of mitosis in which doubling of the centrioles occurs is?
Centrioles double during the prophase of mitosis. Prophase is also the phase where DNA enters the chromosomes and are replicated.
Which period are chromosomes duplicated in?
During the cell cycle, chromosomes are duplicated during the interphase.
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?
Telophase is a phase of mitosis. DNA replication must occur before mitosis begins. If it does not then the DNA chromosomes may not be consistent throughout the division of the cells.
Chromosomes are duplicated during?
Organelles and chromosomes are copied during S phase and G2 phase of Interphase in Mitosis. More particuarlly, the S phase is where DNA replication occurs and the G2 phase synthesizes proteins and organelles needed in Mitosis.
In which phase do chromosomes become visible?
The DNA of a cell condenses to form chromosomes during cell division or mitotis, called the M phase of the cell cycle. Specifically, chromosomes acquire their characteristic X shape in the metaphase stage of mitotis. Each chromosome consists of two sister chromatids joined at the centromere.
Does DNA replicate in mitosis?
no DNA replicates before mitosis. It replicates in the S phase of inter phase
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.
