Greater than 7 because I have on my test not worry
Answer:Carbon has four valence electrons, so it can achieve a full outer energy level by forming four covalent bonds. When it bonds only with hydrogen, it forms compounds called hydrocarbons. Carbon can form single, double, or triple covalent bonds with other carbon atoms.
Explanation:
Answer: Bacteria lack a mechanism for splicing out introns
Explanation:
Factor VII gene is 186k nucleotides long while the protein is 2332 amino acids long. <u>This lenght discrepancy is due to introns interrupting gene</u>, because the cell first transcribes the entire gene and then cuts introns out of the transcript. At the end, it splices the remaining pieces. Prokaryotes don't perform splicing so it can not edit out introns from the primary mRNA transcript. To produce an eukaryote gene in prokaryotes it is necessary to use a reverse transcriptase to get a cDNA sequence without the introns, and then insert that into a bacterial genome.
Answer:
abiotic constituents, minerals, climate, soil, water, sunlight, and all other nonliving elements, and its biotic constituents,
Explanation:
Scientific inquiry is asking a question about the world and finding out an answer or explanation in order <span>to develop explanations of natural phenomena in a continuing and creative process. It is very important to follow safety rules during every scientific inquiry:
</span><span>1.Do not taste, touch, or smell substances unless directed to do so.
</span><span>2.Wear safety glasses and other required safety equipment.
</span><span>3. Keep the lab area, including table top and walkways, clear of unnecessary items.
4. </span>H<span>andle all equipment carefully and as directed.</span>
