1) <span>the solar system and light formed.
2) </span> Earth<span>'s formation, approximately 4,5 billion years ago.
3) </span>the creation of the atmosphere through volcanic out gassing; <span>Earth's primitive atmosphere made a transition to an </span>oxygen<span> rich atmosphere.
4) </span>formation of landmass and oceans.
5) the creation of life; <span> there is evidence of the earliest appearance of eukaryotes.</span>
Answer:
Homeland Security Presidential Directives help in food emergencies
Explanation:
Answer:
Scientists think the _____ is a solid iron with a layer of liquid iron surrounding it. 1. ... iron surrounding it. 1. Outer core 2. Inner core 3. Mantle 4. Crust,. 1 ... The inner core is made of solid iron, and it is surrounded by the liquid iron of the outer core. ... A) mantle B) outer core C) inner core D) lithosphere.
Explanation:
Answer:
Repair mechanism for base cleavage (BER)
Explanation:
Repair by base cleavage (BER)
The altered bases are specifically recognized by glycosylases and removed, generating an AP site. The hole is filled by a DNA polymerase that takes the healthy strand as a template. This system arises not only by exposure to external agents, but also by the cell's own activity.
In case of damage in more than one nucleotide, repair by nucleotide excision (NER) is performed.
Nucleotide excision repair (NER)
The damaged area is recognized by UvrA and B, then A and B separate and UvrC enters which forms a complex with endonuclease activity with B. This enzyme cuts the T-dimer and the gap is filled by a DNA polymerase. There is also the TC-NER system (transcription-coupled nucleotide repair system). The alteration of these mechanisms gives rise to diseases such as: Xeroderma pigmentosum, Trichotiodystrophy or Cockayne Syndrome
Answer: Bangladesh, Myanmar, Vietnam, and Thailand.
Explanation:
