Struktur der Pflanzenchromosomen: 7 Fakten, die Sie kennen sollten


Plant chromosome structure contains all the genetic information found in pairs. Let us see some more interesting facts about plant chromosome structure.

Werk chromosome structure is thread-like, found in the Kern of the cell. A chromosome comprises a single molecule of protein and deoxyribonucleic acid (DNA). DNA is passed down from parent to offspring and contains specific instructions that make each species unique. 

Plant chromosomes develop through Spaltung, Verschmelzung, replication, and insertion, allowing for size and number evolution.

Let us discuss if plant chromosomes are circular or linear, why they are linear, how they are arranged and many more questions in this article.

Sind Pflanzenchromosomen kreisförmig oder linear?

Chromosomen or DNA are found in linear or circular structures. Circular DNA is only present in prokaryotic cells. Let us see if plant chromosomes are circular or linear.

Plant chromosomes are linear in structure, just like other eukaryotes. A plant cell has nuclei surrounded by a membrane and plant chromosomes are present in linear form rather than circular. The DNA found in linear chromosomes in the cell nucleus is tightly wrapped around a significant protein called histone.

Warum sind Pflanzenchromosomen linear? 

The factors that led to the evolution of eukaryotic linear chromosomes are not well understood by scientists. Let us know the reason behind this.

Plant chromosomes are linear instructure because it is suitable for the development of cell. Large organisms need linear or straight chromosomes to promote the transcription and replication of large genomes.

Der potenzielle Selektionsdruck, der lineare Chromosomen unterstützt, hängt mit der Größe des Genoms von Organismen zusammen. 

Wie sieht ein Chromosom in einer Pflanze aus?

Chromosomes can not be seen through a human’s naked eyes. A microscopic view helps us to understand the clear structure of plant chromosomes. Let us know more.

Chromosomes have complex thread-like structures, spindles with two chromatids connected with centromeres that occur in the nucleus of eukaryotic cells. Plant chromosome size can be 1 to 8cm long, and the shape of a chromosome is understood by the centromere’s position along its length. 

  • Telozentrisches Chromosom: Ein Ende des Chromosoms  
  • Akrozentrisches Chromosom:  Nahe dem Ende.
  • Metazentrisches Chromosom: In der Nähe des Zentrums. 
  • Das physische Zentrum und Ende werden submetazentrisch genannt.
Struktur der Pflanzenchromosomen
Struktur der Pflanzenchromosomen aus Wikipedia

Welche Farbe haben Chromosomen in Pflanzenzellen?

Each organelle of a plant cell can be seen and classified by its shape and occurrence through the microscope. Let us see what colour are chromosomes in plant cells.

Chromosomes appear grey in color in plant cells. Scientists have given the name, chromosome (chroma means “colour” and soma means “body” in Greek) because their cell structures or bodies are intensely coloured by some brightly coloured dyes used in research.

Wie sind Pflanzenchromosomen angeordnet?

The plant kingdom which starts with unicellular algae to multiple cellular trees, and organisms are getting more complex and arranged. Let us see how plant chromosomes are arranged.

Chromosomes are composed of a DNA-protein complex called chromatin, which is organised into subunits called Nukleosomen. The way eukaryotes compress and place chromatin not only fits large amounts of DNA in small spaces but also helps regulate gene expression.

Ist das Pflanzenchromosom doppelsträngig?

Chromosomes are made of two chromatids, these two strands swindled up with each other inside the nucleus. Let us see if plant chromosome is double-stranded.

Plant chromosome structure is double-stranded. A chromosome contains double-stranded DNA combined with the phosphate bond and nitrogenous base.

Was ist der Unterschied zwischen pflanzlichen und tierischen Chromosomenstrukturen?

Chromosomes play a significant role in the growth and development of plant cells. Let us see the difference between plant and animal chromosome structures.

Chromosomes are present in both plant and animal cells inside their nucleus, but few characteristics are different, welche sind wie folgt:

FactorsPflanzenzelleTierzelle
NummerLess number of chromosomes are found in plant cell.More number of chromosomes are found in animal cell.
Type of genePlant chromosomes have photosynthetic genes.Animal cells have locomotory genes in the majority.
ZellteilungIn plants, cell division occurs by cell plate.In animals, there is a process called cytokinesis for cell division.
Difference between plant and animal chromosome structures

Schlussfolgerung

A plant chromosome is a linear double-stranded structure that carries genetic material, DNA, and RNA, and is responsible for growth and reproduction. Chromosomes are tangled, which protects DNA from getting damaged. In the field of cytogenetics, chromosomes and their function helps us understand the DNA sequences and structures of chromosomes and chromatin. The plant genome in the number of chromosomes widely differs among the species. 

Kirti Singh

Hallo, mein Name ist Kriti Singh aus Agra. Ich habe ein Postgraduiertenstudium in Biotechnologie und einen B.Ed. Grad. Biologie ist seit meiner Kindheit mein Lieblingsfach und ich fühlte mich nie müde oder gelangweilt von diesem speziellen Fach. Da ich eine neugierige Persönlichkeit habe, war ich schon immer neugierig und fasziniert, mehr über das Leben und die Natur zu erfahren. Verbinden wir uns über LinkedIn: https://www.linkedin.com/in/kirti-singh-33a20196

Neueste Beiträge