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puteri [66]
3 years ago
9

Supercoiling is important for DNA structure, because Supercoiling is important for DNA structure, because it provides energy for

transcription. it prevents RNA from pairing with DNA in the double helix. it holds together the antiparallel strands of DNA in the double helix. it condenses the DNA so that it can fit inside the cell.
Biology
1 answer:
Vinil7 [7]3 years ago
4 0

Answer:

it condenses the DNA so that it can fit inside the cell.

Explanation:

Supercoiling is a level of genome packaging and is important for the packaging of the DNA which is about 2m in length inside a nucleus that is about 6microm. Supercoiling refers to the over (positive supercoiling) or under winding (negative supercoiling) of a DNA strand, and is an expression of the strain on that strand. Supercoiling is in compacting DNA, and also allows for the regulation of access of transcriptional machinery and other biological activities to the DNA and in turn gene expression. Certain enzymes such as topoisomerases are able to change DNA topology to facilitate access of DNA replication or transcription.

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Why does enzyme activity plateau as substrate<br>concentration increases?​
White raven [17]

Answer and Explanation:

Why does enzyme activity plateau as substrate concentration increases?

Simple. The enzyme is saturated, now all available enzyme molecules are busy processing substrates.

5 0
3 years ago
Read 2 more answers
The hay included as part of the culture medium provided a food source for bacteria. Bacteria are a good food source for some typ
lions [1.4K]

Answer:

  • Protozoans → would not have survived because they have no way to produce their own food → Heterotrophs
  • Algae → would have survived without this food source → Heterotrophs

Explanation:

The protist kingdom is composed of two main groups.  The principal difference between them is that algae can produce their own food, while protozoans need to ingest other organisms or organic molecules to survive.

  • Algaes are autotroph
  • Protozoans are heterotroph

<u>Protozoans</u>:

Microscopic unicellular organisms, eukaryotic and heterotrophs -predators or detritivores-. Most of them are aquatic free-living organisms, but some species are parasites. They feed on<u> bacteria</u>, other organic wastes, and other microscopic organisms. The phagocytosis process is normally used to ingest the food, invaginating their cell membrane.  

<u>Algae</u>:

Eukaryotic micro- or macroscopic organisms. Autotroph and photosynthetic. They might be either unicellular or pluricellular. They use sunlight to synthesize organic matter from water, CO₂, and mineral salts. Unicellular ones can be free-living or associate with others to form colonies. They are part of the phytoplankton and are ingested by heterotrophic organisms. Pluricellular algae do not create real tissues but they compose a tale. The depth at which they inhabit depends on the pigments they produce. All of them inhabit fresh or sea waters.

8 0
3 years ago
Answer pleaseee i will give you brainliest
iogann1982 [59]

Answer:

Explanation:

its either a) or b) i d k choose wisely please

5 0
3 years ago
Which step of mitosis involves the condensing of DNA into chromosomes?
Alenkinab [10]

Answer:

I think it is A. Metaphase

5 0
3 years ago
Water-storing plants and deeply rooted shrubs are plants that characterize?
Nady [450]

Desert vegetation or xerophytes includes bushes with deep roots and plants that store water.

Another name for desert plant:

A plant species known as a xerophyte has evolved to live in environments with little fluid water, like a desert or an area surrounded by ice or frost in the Mountains or the Polar regions. Cacti, pineapples, and various Gymnosperm species are a few well-known instances of xerophytes.

  • Xerophytes have different adaptations to their morphological characters (morphology) and basic physiological functions (physiology) that allow them to store significant amounts of water and save it during dry seasons. During prolonged periods of severe dehydration or evaporation of their organs, some creatures can live, and at those times, their biochemical function may cease. Xeromorphic flora has such biological and morphological modifications.

Learn more about xerophyte here:

brainly.com/question/4782897

#SPJ4

6 0
2 years ago
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