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Why replication of human chromosomes would takes so long with a single replication?
Because human DNA is so very long (with up to 80 million base pairs in a chromosome) it unzips at multiple places along its length so that the replication process is going on simultaneously at hundreds of places along the length of the chain. Eventually these areas run together to form a complete chain. In humans, DNA is copied at about 50base pairs per second. The process would take a month (rather than the hour it actually does) without these multiple places on the chromosome where replication can begin.
How many chromosomes in a human cell after it makes a copy of each chromosome?
A human cell contains 46 chromosomes, which are divided into 23 pairs. After the cell undergoes DNA replication, it will have 92 chromosomes temporarily (46 pairs), which will then be separated during cell division to produce two daughter cells, each with 46 chromosomes.
In what structure does Bacterial DNA resemble human DNA?
That they have both DNA Bacterial DNA is a (closed) circle, those of human is lineair (straight) if you stretch it. Bacterial DNA does not have Proteines, Human DNA has Proteines. Bacteria have also RNA The DNA of bacteria is easy to reach , those of human not.
Why are Chromosomes called Double Chromosomes?
After DNA replication, there are double the number of chromosomes, which will be divided into two identical daughter nuclei during mitosis. For example, a normal human body cell has 46 chromosomes. When it undergoes DNA replication, the chromosomes are doubled so that there will be 92 chromosomes, consisting of 46 pairs of sister chromatids. During mitosis, the sister chromatids separate into two identical daughter nuclei, each having 46 chromosomes.
How many chromosomes does the human sperm cell have?
It has 23 chromosomes.
How many chromosomes does a human somatic cell have?
46 chromosomes arranged into 23 pairs at replication.
Why replication of human chromosomes would takes so long with a single replication?
Because human DNA is so very long (with up to 80 million base pairs in a chromosome) it unzips at multiple places along its length so that the replication process is going on simultaneously at hundreds of places along the length of the chain. Eventually these areas run together to form a complete chain. In humans, DNA is copied at about 50base pairs per second. The process would take a month (rather than the hour it actually does) without these multiple places on the chromosome where replication can begin.
Is a chromosome larger than a gene?
There are 25,000 human genes on 23 chromosomes. There are hundreds of genes on the smaller chromosomes and thousands on the bigger ones.
How many chromosomes in a human cell after it makes a copy of each chromosome?
A human cell contains 46 chromosomes, which are divided into 23 pairs. After the cell undergoes DNA replication, it will have 92 chromosomes temporarily (46 pairs), which will then be separated during cell division to produce two daughter cells, each with 46 chromosomes.
In what structure does Bacterial DNA resemble human DNA?
That they have both DNA Bacterial DNA is a (closed) circle, those of human is lineair (straight) if you stretch it. Bacterial DNA does not have Proteines, Human DNA has Proteines. Bacteria have also RNA The DNA of bacteria is easy to reach , those of human not.
Why are Chromosomes called Double Chromosomes?
After DNA replication, there are double the number of chromosomes, which will be divided into two identical daughter nuclei during mitosis. For example, a normal human body cell has 46 chromosomes. When it undergoes DNA replication, the chromosomes are doubled so that there will be 92 chromosomes, consisting of 46 pairs of sister chromatids. During mitosis, the sister chromatids separate into two identical daughter nuclei, each having 46 chromosomes.
How many chromosomes in the human kidney?
there are 46 chromosomes in the human kidney
What are the number of chromosomes in the human gamete?
There are 23 chromosomes in a human gamete
How many chromosomes are in a human gamate?
A human gamete has 23 chromosomes. This is half the number of chromosomes found in a regular human cell, which has 46 chromosomes (23 pairs).
In your body what do you have 46 of?
Every human should have 46 chromosomes in his or her body. 23 chromosomes come from a human's mother and 23 chromosomes come from a human's father.
How many chromosomes does each human have?
Each human has 23 pairs or 46 chromosomes
A human egg cell has 23 chromosomes. How many chromosomes will a human zygote have?
46
