0
What is the chromosomal structure that limits the number of cell divisions of a cell?
Jshamsiddeen
Telomeres
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What does it mean that the chromosomal aberration has a position effect?
Chromosomal aberrations occur when any of a number of structural changes in chromosomes. These changes result from abnormal divisions within the chromosomes, and may occur as a loss of the chromosome or the duplication of the chromosome.
Mitosis is the division of?
nuclearIt is the division of the nucleus. Here the chromosomal number is not changed.
Why is it necessary for gemetes to be haploid rather then diploid?
So as chromosomal number is conserved. Or else it can be doubled
How the chromosomal number of the cell is kept constant through mitosis?
By uniform replication of DNA and division of centomeres, the daughter nuclei receive the same number of chromosomes.
What is the number cell division in meiosis?
There are 2 cell divisions in meiosis.
What does it mean that the chromosomal aberration has a position effect?
Chromosomal aberrations occur when any of a number of structural changes in chromosomes. These changes result from abnormal divisions within the chromosomes, and may occur as a loss of the chromosome or the duplication of the chromosome.
Example of divisional structure?
A divisional structure has a number of divisions below senior management. The divisions are often a complete corporate unit in themselves, or they may specialize in a particular component of the product. The divisions are divided into departments.
What are diploid cellls?
Diploid cells are cells with full chromosomal number.Haploids are with half chromosomal number.
What structure of government limitis the president to two terms?
The 22nd amendment to the US Constitution limits the number of terms for the president.
What is a chromosomal defect?
A abnormality in the size, shape, or number of chromosomes.
What is observed in a karyotype?
A karyotype is basically a chart of the number and structure of chromosomes. They can reveal ploidy differences (missing or additional chromosomes such as trisomy 21) or chromosomal mutations (like inversions, deletions, translocations etc)
When we say that an organism is haploid we mean that?
It has the half the chromosomal number of that species. As an example sperms have 23,while body cells have 46
What's the process that reduces the chromosomal number by one half?
Meiosis.
What is the number one cause of miscarriage?
chromosomal abnormality of the developing fetus.
Name two major types of mutations What do they have in common How are they different Give an example of each?
Gene and chromosomal; both change DNA sequence that affects genetic information. Gene mutations involve a change in one ore several nucleotides in a single gene, whereas chromosomal mutations involve changes in the number or structure of whole chromosomes
Why do cells need mitosis?
So they can surviveThey are important in increasing number of cells. It maintains chromosomal number
Why is it necessary for meiosis to produce cell with half the number of chromosomes?
To conserve the chromosomal number. Otherwise it will doubled
