DNA coils tightly during division and assembles into visible ___________.

Biology

1 answer:

rosijanka [135]3 years ago

6 0

Answer:

chromosomes

Explanation:

DNA of organisms is organized into one or more thread-like structures called chromosomes. Chromosomes are made of DNA and its packing proteins. During cell division, the thin mass of chromatin which in turn is made of DNA and its packing protein condense and becomes visible as individual chromosomes. The DNA molecule is wrapped around histone proteins to form nucleosomes which in turn become compact into chromatin fibers.

The further condensation of looped domains formed by the coiling of chromatin fiber forms chromosomes. The part of a chromosome that holds its two arms together is called centromere. Chromosome becomes visible during the prophase stage only when condensation of chromatin takes place.

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The values promoted in this case are conservation. We can contribute by creating awareness about biodiversity. If the area was not declared a biodiversity Hotspot, the species of forest would have gone extinct.

<h3>What is a biodiversity hotspot? </h3>

The variety of plants and animals that are found in a particular area is referred to as the biodiversity of that area. The major components of biodiversity are species evenness and species richness.

The region of high endemic species richness is called biodiversity hotspots. Two criteria for an area to be classified as a biodiversity hotspot are -

1500 species of vascular plants.
30% or less of its original habitat.

Therefore, the values promoted in these cases are conservation.