It's not so important that it be recycled ... after all, there's almost a limitless supply,
and there's no danger of ever running out of it.
What's important is to keep carbon out of the atmosphere. In order to do that, we
need to reduce the amount of it that's released during so many of the processes
that we've been doing on a huge scale for the past 200 years, and invent ways
to capture the carbon that we DO continue to release, before it gets into the
atmosphere.
Answer:
The correct answer is - Methionine, serine, histidine, aspartate, glycine
Explanation:
The new segment of DNA is: 3'-TACAGGGTGCTACCCACT-5', which performs two processes to form a peptide chain, transcription, and translation. In transcription, the DNA segment is encoded to an mRNA molecule which has its complementary sequence to DNA sequence.
New DNA strand: 3'-TACAGGGTGCTACCCACT-5'
mRNA sequence: 3'-AUGUCCCACGAUGGGUGA-5'
The translation of this mRNA would be on the basis of chart
AUG - Methionine (start codon)
UCC - serine
CAC - histidine
GAU - aspartate
GGG - glycine
UGA - stop codon
The peptide chain would be - Methionine, serine, histidine, aspartate, glycine
Answer:
In a hypotonic solution, the solute concentration is lower than inside the cell. If the water continues to move into the cell, it can stretch the cell membrane to the point the cell bursts (lyses) and dies
Answer:
No, CREs usually don't account for differences in gene expression levels.
Explanation:
<em>Cis</em>-regulatory elements (CREs) are non-coding DNA regions that regulate adjacent gene <em>transcription</em>. They usually do it by binding to transcription factors. They are in charge of influencing the rate of which transcription occurs, and less with how much a gene is expressed. On the other hand, trans-regulatory elements are DNA sequences that encode for upstream regulators that can modify or regulate <em>gene expression levels</em>.
Therefore, cis elements are not really in charge of expression levels, mostly transcription rates of single genes, rather. Trans elements are more involved in expression levels.
Answer:
<u><em>Sediment A: </em></u>
- Carbonate sand
- Sediment made of seashell and calcite
- Sediment that has travelled farther
<u><em>Sediment B: </em></u>
- Quartz sand
- Made of harder minerals
- Forms when rocks break apart
Explanation:
<u><em>Sediment A</em></u><em>:</em> In the figure shown on left, the particle size is small and corners are round. This suggests that it is most likely made up of carbonate which can dissolve easily in the presence of water and CO2 forming weak acid (carbonic acid). Likewise, it is also possible that the material has traveled longer distances and due to erosion, the corners of the particle has become rounded. The carbonaceous material in the sea environment is often made by carbonate producer organisms that use calcite to make the protective shell.
<u><em>Sediment A</em></u><em>: </em>In the figure shown on right, the material is bigger in size with hard and sharp corners. This means that it is either broken recently from the rock and has not traveled longer distances OR, it is made up of harder minerals that cannot break easily by weathering and erosion process. Quartz sand has such properties.
