Question

2. What is Archaebacteria ? Write any two General characteristic Features of it.
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Answer 1

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Archaebacteria are a type of single-cell organism which are so different from other modern life-forms that they have challenged the way scientists classify life. ... Another remarkable trait of archaebacteria is their ability to survive in extreme environments, including very salty, very acidic, and very hot surroundings.

The common characteristics of Archaebacteria known to date are these:

(1) the presence of characteristic tRNAs and ribosomal RNAs;

(2) the absence of peptidoglycan cell walls, with in many cases, replacement by a largely proteinaceous coat;

(3) the occurrence of ether linked lipids built from phytanyl chains and

Answer 2

Answer:

Archaebacteria are a type of single-cell organism which are so different from other modern life-forms that they have challenged the way scientists classify life.

The common characteristics of Archaebacteria known to date are these: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls, with in many cases, replacement by a largely proteinaceous coat; (3) the occurrence of ether linked lipids built from phytanyl chains and (4) in all cases known so far, their occurrence only in unusual habitats.

Explanation:

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