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Which organelle ensures that after cell division each daughter cell has the correct number of chromosomes?
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∙ 9y ago
Interphase
The process of building up proteins in a cell is called an anabolism.
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∙ 8y ago
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During normal mitotic cell division a parent cell having four chromosomes will produce two daughter cells containing how many chromosomes?
There will be 23 chromosomes in each daughter cell. This is half the usual amount. This is referred to as hapliod. Since meiosis only occurs to produce eggs and sperm it makes sense that each egg and sperm should contain only half the "usual" amount. Therefore you literally get half your genes from your mother (egg) and half your genes from your father (sperm). Once fused as a zygote (the cell from which the baby will be formed) now has the correct or "usual" number of chromosomes - 46 or 23 pairs.
Meiosis occurs when gametes are needed during sexual reproduction.?
This is correct. Instead of Mitosis, the normal kind of cell division in which the cell's DNA duplicates to form 2 identical daughter cells, Meiosis creates 4 daughter cells, each with only 23 chromosomes. Also, meiosis 'crosses over' chromosomes to form daughter cells with unique chromosomes, which will contain genetic information from both biological parents.
How do two daughter cells differ?
The parent cell will be diploid and contain paired chromosomes. The haploid cell will contain only one copy of each chromosome. In humans for example there are 23 pairs of chromosomes. In a somatic cell, which is diploid, the 23 pairs are present. In a gamete (sperm or egg cell), which is haploid there are only 23 chromosomes - unpaired. This is so that when the sperm and egg meet at fertilisation there are 46 chromosomes - 23 pairs - the correct number for the organism.
Why do chromosomes line up in the middle of the cell during metaphase?
It is important that chromosomes move during mitosis because the chromosomes' sister chromatids need to separate. They must separate to become daughter cell-carrying chromosomes themselves.
Does meiosis reduce chromosome numbers?
Yes - the daughter cells produced in meiosis (gametes) have half the number of chromosomes as those in the original cell. This is why meiosis is referred to as 'reduction division'. However, as meiosis produces cells which are involved in sexual reproduction - the chromosome number in the species remains constant. This is because when the two gametes combine, the resulting organism has the correct number of chromosomes (half from each gamete).
What cell division do daughter cells have the same number of chromosomes as parent cell?
The daughter cells resulting in mitotic cell division are genetically identical to the mother cell. This means that they have the same amount of chromosomes, which are replicated in the mother cell prior to splitting.
Why do karyotypes always show chromosomes at the point when cell division is about to occur?
They show chromosomes at the point when cell division is about to occur because the chromosomes are condensed and aligned which makes it easy to tell if there are the correct number and configurations of the chromosomes.
During normal mitotic cell division a parent cell having four chromosomes will produce two daughter cells containing how many chromosomes?
There will be 23 chromosomes in each daughter cell. This is half the usual amount. This is referred to as hapliod. Since meiosis only occurs to produce eggs and sperm it makes sense that each egg and sperm should contain only half the "usual" amount. Therefore you literally get half your genes from your mother (egg) and half your genes from your father (sperm). Once fused as a zygote (the cell from which the baby will be formed) now has the correct or "usual" number of chromosomes - 46 or 23 pairs.
Meiosis occurs when gametes are needed during sexual reproduction.?
This is correct. Instead of Mitosis, the normal kind of cell division in which the cell's DNA duplicates to form 2 identical daughter cells, Meiosis creates 4 daughter cells, each with only 23 chromosomes. Also, meiosis 'crosses over' chromosomes to form daughter cells with unique chromosomes, which will contain genetic information from both biological parents.
What is a example of anaphase?
An example of anaphase is the stage of cell division in which the sister chromatids separate and move towards opposite poles of the cell. This process is facilitated by the contraction of microtubules called spindle fibers. As a result of anaphase, each pole of the cell receives a complete set of chromosomes, ensuring that each daughter cell will have the correct number of chromosomes.
During mitosis chromosomes are moved and separated through the use of spindles composed of?
microtubules. These microtubules are formed from the centrosomes and attach to the chromosomes at their kinetochores. As the microtubules shorten and lengthen, they pull the chromosomes apart, ensuring that each daughter cell receives the correct number of chromosomes.
What would happen if cytokinesis occurred without mitosis explain?
The chromosomes would not have replicated, so the resulting daughter cells will not have the correct ploidy.
DNA replicates during what phase?
It replicates during Interphase, the stage of Mitosis.DNA is replicated during interphase. This DNA replication takes place during mitosis and allows the daughter cells to have the correct number of chromosomes.
How do two daughter cells differ?
The parent cell will be diploid and contain paired chromosomes. The haploid cell will contain only one copy of each chromosome. In humans for example there are 23 pairs of chromosomes. In a somatic cell, which is diploid, the 23 pairs are present. In a gamete (sperm or egg cell), which is haploid there are only 23 chromosomes - unpaired. This is so that when the sperm and egg meet at fertilisation there are 46 chromosomes - 23 pairs - the correct number for the organism.
Why do chromosomes line up in the middle of the cell during metaphase?
It is important that chromosomes move during mitosis because the chromosomes' sister chromatids need to separate. They must separate to become daughter cell-carrying chromosomes themselves.
Does meiosis reduce chromosome numbers?
Yes - the daughter cells produced in meiosis (gametes) have half the number of chromosomes as those in the original cell. This is why meiosis is referred to as 'reduction division'. However, as meiosis produces cells which are involved in sexual reproduction - the chromosome number in the species remains constant. This is because when the two gametes combine, the resulting organism has the correct number of chromosomes (half from each gamete).
During cell division or mitosis an exact duplicate of the original cell is produced?
This is known as DNA replication and occurs in the S (synthesis) phase. The DNA needs to be duplicated so that when the cell divides, the daughter cells all get the correct number of chromosomes.
