Question

COM
What is not present in the neuclear region of
prokaryotic cell but present in the
-leus of eukaryotics cell ?व्हाट इज नॉट प्रेजेंट इन द न्यूक्लियस रीजन ऑफ ब्यूरोक्रेटिक सेल बट प्रेजेंट इन द न्यूक्लियस ऑफ यूरो क्रेडिट सेल्स ​

Answer 1

Answer:

In prokaryotes, DNA is bundled together in the nucleoid region, but it is not stored within a membrane-bound nucleus. The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles. Another important difference is the DNA structure.

Explanation:

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Answer 2

Thallophytes

Thallophytes are a polyphyletic group of non-mobile organisms that are grouped together on the basis of similarity of characteristics but do not share a common ancestor. They were formerly categorized as a sub-kingdom of kingdom Plantae. These include lichens, algae, fungus, bacteria and slime moulds and bryophytes.

Characteristics of Thallophyta

1. They are usually found in moist or wet places.
2. This is due to the absence of “true roots” and vascular tissue that is needed to transport water and minerals. Hence they are found in moist or wet places.
3. They are autotrophic in nature.
4. Most members of this group manufacture their own food. But a few members like fungi are dependent on other sources of food.,
5. Reserve food is generally starch.
6. After photosynthesis, glucose is produced and consumed almost immediately, the remaining glucose is converted into complex compounds called starch.
7. They have a cell wall composed of cellulose around their cells.
8. Absence of vascular tissue.
9. Unlike other plants, xylem and phloem are absent. etc
10. Sex organs are simple, single-celled, there is no embryo formation after fertilization.

What are Bryophytes?

Bryophyta, the division of green plants, refers to embryophytes which in literal terms, are land plants, especially the non-vascular ones. This division includes-

Characteristics of Bryophytes

1. Plants in this category do not have roots but have crude stems and leaves.
2. They have “rhizoids” instead of roots which helps the plant to anchor to surface.
3. These roots or rhizoids do not absorb nutrients like other usual plant roots.
4. Mosses release spores from their leaves which travels by water and make new mosses in new locations.
5. Water is very essential for mosses to grow and spread. They can entirely dry out and survive. When in contact with water, they again revive and continue growing.

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