What are the 4 types of chromosomal?
On the basis of the location of the centromere, chromosomes are classified into four types: metacentric, submetacentric, acrocentric, and telocentric.
What is C value of cell cycle?
C-value is the amount, in picograms, of DNA contained within a haploid nucleus (e.g. a gamete) or one half the amount in a diploid somatic cell of a eukaryotic organism.
Which type of chromosome is absent in human?
Telocentric chromosomes are not seen in healthy humans, since they are unstable and arise by misdivision or breakage near the centromere and are usually eliminated within a few cell divisions.
What are the 5 chromosomal mutations?
deletion is where a section of a chromosome is removed. translocation is where a section of a chromosome is added to another chromosome that is not its homologous partner. inversion is where a section of a chromosome is reversed. duplication occurs when a section of a chromosome is added from its homologous partner.
What type of chromosomes do males carry?
Each person normally has one pair of sex chromosomes in each cell. The Y chromosome is present in males, who have one X and one Y chromosome, while females have two X chromosomes.
Can you have 45 chromosomes?
Turner syndrome is due to a chromosomal abnormality in which all or part of one of the X chromosomes is missing or altered. While most people have 46 chromosomes, people with TS usually have 45. The chromosomal abnormality may be present in just some cells in which case it is known as TS with mosaicism.