Is chromosome 2 Metacentric or Submetacentric?
A chromosome with equal chromosomal arms is termed metacentric chromosome. In humans, several chromosomes are submetacentric: chromosome 2, chromosome 4, chromosome 5, chromosome 6, chromosome 7, chromosome 8, chromosome 9, chromosome 10, chromosome 11, chromosome 12, chromosome 17, chromosome 18 and X chromosome.
What is metacentric chromosome?
Metacentric chromosomes have the centromere located midway between the ends of the chromosome, separating the two arms of the chromosome (Figure 1). Chromosomes with centromeres positioned visibly off-center are called submetacentric.
What are Acrocentric and metacentric chromosomes?
The position of the centromere varies in different chromosomes. Metacentric chromosomes have a centromere in the middle of the chromosome, telocentric chromosomes have a chromomere at the end and acrocentric chromosomes have a chromomere near the end of the chromosomes.
What shapes are Metacentric and Submetacentric?
The metacentric chromosomes appear to be V-shaped. sub- metacentric chromosomes appear to be L-shaped, the telocentric chromosome appears to be like I-shaped and the acrocentric chromosome appears to be J-shaped.
What is Metacentric diagram?
A metacentric diagram is a figure in graph form from which the KB, BM, and thus the KM can be found for any draft by inspection. If the KG is known and the KM is found from the diagram, the difference will give the GM.
What is Metacentric in biology?
A metacentric chromosome is a chromosome whose centromere is centrally located. As a result, the chromosomal arms (i.e. p and q arms) are almost equal in length. A metacentric chromosome would have the X shape. A chromosome with slightly unequal chromosomal arm length is referred to as submetacentric chromosome.
What is the shape of submetacentric?
L-shaped
sub- metacentric chromosomes appear to be L-shaped, the telocentric chromosome appears to be like I-shaped and the acrocentric chromosome appears to be J-shaped.
What is J-shaped chromosome?
The chromatids moving towards opposite poles appear to be of various shapes like V-shaped (metacentric chromosomes), J-shaped (submetacentric chromosomes) or I-shaped (telocentric chromosomes), depending on the position of the centromere. So, the correct answer is option D.
What is the shape of Submetacentric chromosome?
What is Metacenter and metacentric height?
The metacentric height (GM) is a measurement of the initial static stability of a floating body. It is calculated as the distance between the centre of gravity of a ship and its metacentre. A larger metacentric height implies greater initial stability against overturning.
What is the meaning of metacenter?
Definition of metacenter : the point of intersection of the vertical through the center of buoyancy of a floating body with the vertical through the new center of buoyancy when the body is displaced.
What are characteristics of metacentric chromosomes?
Metacentric chromosome has a centromere in the middle and its two arms (chromatids) are almost equal in length. B. Metacentric chromosome has a centromere in the side and its two arms (chromatids) are not equal in length.
What is the name of L shaped chromosome?
So, the correct answer is ‘Submetacentric’
What shape would a Metacentric and Submetacentric?
In anaphase, moving V-shaped chromosome is metacentric/submetacentric.
Why does each chromosome have only one chromatid?
Then during mitosis, when the DNA is transferred to the two daughter cells, one of each of those chromatids is transferred to each of the two cells. So a chromatid is one copy of a chromosome after DNA replication.
What does telocentric chromosome mean?
The telocentric chromosomes have the centromere at the end of the chromosome. Humans do not possess telocentric chromosomes, but they are found in other species, such as mice. Subtelocéntrico. If the centromere of the chromosome is located closer to its end than its center, it can be described as subtelocentric. Holocéntrico. With the holocentric chromosomes, the entire length of the chromosome acts like the centromere.
Is chromosome and chromatin the same thing?
The Difference between Chromosomes and Chromatin is that chromatin is uncondensed and unpaired while chromosomes are paired and condensed. Both of them are basically the same thing with chromosome being a higher level organization while chromatin is a lower level organization with histone proteins. Genes are present on chromosomes.
What is a submetacentric chromosome?
Submetacentric chromosomes are the chromosomes in which the centromere is located a little away from the midpoint, thus resulting in unequal length arms. In humans, most chromosomes belong to this type. The key difference between the Metacentric and Sub-metacentric chromosomes is based on the positioning of the centromere in the chromosome.