What is the relationship between chromosomes spindle fibers and centromeres

1 answer:

8 0

SPINDLE FIBERS

In Mitosis, Spindle Fibres form at opposite poles of the cell and meet at the equator. Collectively, they form a spindle-shaped structure which attach to Centromeres.

CENTROSOMES

The organelle located near the nucleus in the cytoplasm,
composed of 2 centrioles that divides during S Phase

Centrioles are surrounded by a mass of proteins (Pericentriolar Material (PCM))

Migrates to opposite poles of the cell during mitosis

Involved in the creation of spindle fibres

CHROMOSOMES

A threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

Centromeres
The constricted region joining the two sister chromatids that make up an X-shaped chromosome. It also serves as the point of attachment for spindle fibers when the spindle fibers are pulling the chromosomes toward the centrioles (situated on opposite poles in a cell) prior to cytokinesis.

You might be interested in

Each member of the human hemoglobin gene family, which consists of seven genes arranged in two clusters on different chromosomes

Kay [80]

Answer:

B. False

Explanation:

Orthologs are genes that find their origin in vertical descent,, paralogous on the other hand, are genes that are related via duplication events. In the case of human hemoglobin, their genes originated by duplication from an common ancestral globin gen, therefore they are paralogous.

I hope you find this information useful and interesting! Good luck!

6 0

2 years ago

A phage is a virus that infects bacterial cells. A phage virus is shown above. What component of the phage virus is indicated by

Setler [38]

Answer:

D) the nucleic acid (either DNA or RNA)

Explanation:

Phages, or bacteriophages are viruses that infect bacteria.They have varying shapes, and sizes, and may contain one of two kinds of nucleic acid; these are RNA and DNA.

The nucleic acids are made up of nucleotides. These are genetic storage biomolecules made up of the monomers ribonucleic acid (RNA) deoxyribonucleic acid (DNA).