Answer:
This implies that DNA and proteins evolved after RNA.
Explanation:
It is believed that RNA predated today's cells in evolutionary history. RNA existed as the genetic material of the primitive cells of the time that were mainly constituted of globules of fat oil suspended in water in the oceans and lakes. Even in cells today, RNA molecules themselves can act as catalysts such as in the case of peptidyl transferase reaction that takes place on the ribosome.
Answer:
<h2>Mainly by Hydrogen bonds and the Van der Waals forces
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Explanation:
The DNA double helix (both strands of DNA) are held closs together by i) mainly hydrogen bonds between complementary bases and ii) the Van der Waals base-stacking interaction.
The hydrogen bonds between the base pairs form the double helical structure of DNA. There is no exchange or sharing of electrons in hydrogen bonds.
G always pairs with C with three hydrogen bonds and T always pairs with A with two hydrogen bonds.
The answer is <span>Stage 1: The thylakoid captures light energy. Stage 2: Chlorophyll converts it to chemical energy.
</span><span>Photosynthesis is a process in which plant produce sugar and oxygen from water and carbon dioxide using the energy of sunlight. Cells of the green leaves contain chloroplasts. </span><span>Thylakoids are the part of chloroplasts where the light-dependent reactions of the photosynthesis occur. They capture light energy, so chlorophyll inside the chloroplast can convert it to chemical energy.
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Phase 1 of the creation of life on earth was that life on earth was from nothing. Small molecules were formed from atoms of carbon and hydrogen. Earth does not have any oxygen rather it contains CO2, methane, nitrogen, hydrogen and ammonia where they were from the eruptions of volcanoes.
3. A rock is am mineral forming from the earth.
4. Sedimentary,ingenious,metamorphic
5.mineral