On early earth, the one that was referred to as "Primordial Soup" is : B. The combination of organic compounds in warm salty water
Many speculated that these organic compounds mutated and evolved into a single cell organism, which became the origin of the organisms on earth
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Answer:
Most genes must be turned off because cells play specific functions, thereby only a limited number of genes must be expressed in each cell type in order to produce proteins required in the cell
Explanation:
Gener regulation is a critical molecular mechanism required for normal cell functioning. In consequence, genes are turned on and off depending on the cell type. For example, in the brain, cells that will be differentiated into neurons will be expressed, while genes involved in the differentiation of undifferentiated myoblasts into muscle cells will be turned off. Thus, genes are switched off in order to produce only those specific proteins which are required for each cell during specific developmental programs and functions carried out by each cell type.
Answer:
b. Bacteria with the desired plasmid produce white colonies.
Explanation:
The bacterial lacZ gene is usually used as a reporter gene, which encodes beta-galactosidase, an enzyme that breakdown lactose but can also breakdown a colourless synthetic analog X-gal, thereby producing blue colonies on X-gal–containing media. But the lacZ will be disabled when the recombinant DNA is spliced into the plasmid. This is because the LacZ protein will not be produced when the gene is disabled. Thus, X-gal will not be broken down and white colonies will be produced, which can then be separated and identified.
Answer:
Pardus and Leo
Explanation:
If not, it is "concolor" and "jubatus" but Pardus and Leo share "Panthera" <em>genus </em>and are part of the same off-branch which leads me to conclude that they are more similar
Cells is a basic unit of life
