Oparin and Haldane's theory and Miller's experiment are the proof that long complex molecules that carry information such as DNA, might have formed on early earth.
Explanation:
Oparin and Haldane Hypothesis states that life on Early earth could have evolved by chemical evolution.
Oparin and Haldane said that the reducing atmosphere of the early earth caused simple inorganic molecules to react by using sunlight and formed molecules like amino acids and nucleotides.
These monomers combined to form polymers, they would have attained self-replicating tendency eventually these would have assembled into structures and these macromolecules had also made membrane-bound organelle.
Although this hypothesis is not fully accepted but part of it which talks about formation of molecules is accepted.
Millers and Urey in their experiment created an artificial reducing environment like that of early earth. They used a heated pool of water, atmospheric gases like H2O,CH4,N2, NH4 and sparks of electricity. After running the experiment for some days they found that amino acids, sugars, lipids and other organic molecules had formed.
Their hypothesis is not fully accepted but part of is evident that organic building block is formed from inorganic constituent on the earth.
Answer:
2.048 x 10^6 No. Of Copies
Explanation:
The DNA replication in a PCR works exponentially by using the 2^n where n represents the number of cycles.
For one molecule of DNA = 2^11 = 2048 No. Of Copies
For 1000 Molecules of DNA = 1000 x 2048 = 2.048 x 10^6 No. Of Copies
Answer:
Pluto's average distance from the Sun is 3,670,050,000 miles (5,906,380,000 kilometers).
Explanation:
Answer:
Ovaries, Uterus, Testes
Explanation:
Ovaries are what carry the Zygote's (eggs) and the Uterus is where a fertelized grows into a baby. If the egg is not fertilized in a certain amount of time the egg becomes infertile, the body goes through a 3-7 day cycle of menstruation. The Testes are the organs (balls) which carry sperm cells, which will fertilized a healthy egg.
Answer:
The right answer is Spindle.
In cell division, the mitotic spindle or achromatic mitotic apparatus of a cell refers to a structure of microtubules arranged in a spindle-shaped (i.e. swollen in the middle) bipolar assembly.
Explanation:
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