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g100num [7]
2 years ago
9

8. The below sequence is RNA? How do you know?

Biology
1 answer:
Molodets [167]2 years ago
5 0
A. it has uracil

We know the sequence is RNA because it contains uracil.
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Ecology is best defined as…
attashe74 [19]

Answer:

A) The scientific study of the distribution and abundance of organisms and their interactions with the environment.

Explanation:

Ecology is the part of biology that is concerned with the study of the relationships established between living beings and theirs with the environment in which they live.  It is a term derived from the Greek that was formed from the junctions of the words "oikos" and "logos", which mean, respectively, home and study. Thus, the term Ecology refers to the study of the “home” of every organism on the planet.

The term Ecology was first used in 1866 by a German zoologist named Ernst Haeckel, in a work called "Generelle Morphologie der Organismen". In this work, the author defined Ecology as "the scientific study of the interactions between organisms and their environment."

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4 years ago
To which substance does ferredoxin transfer an electron?
Sonbull [250]

The right answer is NADP+.

Ferredoxin is an iron-sulfur protein that effects electron transfer in a large number of redox reactions in cell metabolism through Fe-S clusters whose iron cations oscillate between +2 (ferrous) oxidation states. and +3 (ferric). The first protein of this type was isolated in 1962 from the anaerobic bacterium Clostridium pasteurianum. A chloroplast-specific ferredoxin is involved in the cyclic and noncyclic photophosphorylation reactions of photosynthesis. In non-cyclic photophosphorylation, ferredoxin is the ultimate electron acceptor and reduces NADP + under the action of ferredoxin-NADP + reductase (EC 1.18.1.2) with FAD and a flavin group as cofactors:

2 ferredoxin- [Fe (2+) Fe (3+) S2 (-2)] + NADP (+) + H (+) ==> 2 ferredoxin- [Fe3 (+2) S2 (-2)] + NADPH .

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