Differbetween
The main difference between centromere and chromomere is that the centromere is the condensed part of the chromosome, which links the two sister chromatids whereas the chromomere is linearly arranged chromatin granules along the length of the chromosomes.
- What is the difference between centromere and kinetochore?
- What do you mean by Chromomere?
- What is the difference between centromere and telomere?
- What are chromatids and centromeres?
- Why centromere is called kinetochore?
- How many centromeres are in a chromosome?
- Which is made the Chromonema?
- What is meant by a gene?
- What is a karyotype definition?
- What is the function of telomere?
- What is the function of centromere?
- What is the role of centromeres and telomeres?
What is the difference between centromere and kinetochore?
The main difference between centromere and kinetochore is that the centromere is a DNA region whereas kinetochore is an assembling protein complex in the centromere.
What do you mean by Chromomere?
A chromomere, also known as an idiomere, is one of the serially aligned beads or granules of a eukaryotic chromosome, resulting from local coiling of a continuous DNA thread. ... In areas of chromatin with the absence of transcription, condensing of DNA and protein complexes will result in the formation of chromomeres.
What is the difference between centromere and telomere?
Centromere and telomere are two regions found on a chromosome. Centromere is approximately located in the middle of a chromosome and telomere is located at the two ends of each sister chromatid. ... The main difference between centromere and telomere is their location on a chromosome and role during the cell's life.
What are chromatids and centromeres?
​Centromere
A centromere is a constricted region of a chromosome that separates it into a short arm (p) and a long arm (q). ... Following DNA replication, the chromosome consists of two identical structures called sister chromatids, which are joined at the centromere.
Why centromere is called kinetochore?
In this diagram of a duplicated chromosome, (2) identifies the centromere—the region that joins the two sister chromatids, or each half of the chromosome. In prophase of mitosis, specialized regions on centromeres called kinetochores attach chromosomes to spindle fibers.
How many centromeres are in a chromosome?
Cliffs AP bio says there is 1 centromere per chromosome.. but after a duplicated chromosome splits, the chromatids are considered chromosomes because each chromatid has 1 centromere.
Which is made the Chromonema?
a filamentous structure that is the basis of the chromosome in all stages of the cellular cycle. The chromonema was first detected with a light microscope in the late 19th century in cells of pollen from plants of the genus Tradescantia.
What is meant by a gene?
A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. ... Alleles are forms of the same gene with small differences in their sequence of DNA bases.
What is a karyotype definition?
A karyotype is an individual's collection of chromosomes. The term also refers to a laboratory technique that produces an image of an individual's chromosomes.
What is the function of telomere?
Their job is to stop the ends of chromosomes from fraying or sticking to each other, much like the plastic tips on the ends of shoelaces. Telomeres also play an important role in making sure our DNA gets copied properly when cells divide.
What is the function of centromere?
The primary function of the centromere is to provide the foundation for assembly of the kinetochore, which is a protein complex essential to proper chromosomal segregation during mitosis. In electron micrographs of mitotic chromosomes, kinetochores appear as platelike structures composed of several layers (Figure 4).
What is the role of centromeres and telomeres?
Chapter 5 Centromeres and telomeres
The centromere is a multifunctional chromosomal domain which plays a major role in chromosome segregation during cell division. ... The telomere, representing the end of the chromosome, consists of tandemly repeated simple DNA sequences.
