Answer:
b. transcriptional control of gene expression.
Explanation:
The binding sites of transcription factors (enhancers and silencers) can activate or deactivate, respectively, a gene in specific parts of the body.
Some genes must be expressed in a part of the body. For example, if you need to activate a gene in the spine, skull and toes, but not in the rest of the body, how can transcription factors do this task?
As a gene of this type of pattern it can have several enhancers or silencers, where each one can activate or repress the gene of a specific type of cell or part of the body, joining transcription factors that occur in that specific part of the body.
Answer:
They are more attracted by the oxygen atom than by the hydrogen atom.
Explanation:
The bond between hydrogen and oxygen atoms in a water molecular is polar in nature. This is due to the differences in electronegativity of oxygen and hydrogen. Oxygen is much more electronegative than hydrogen.
The higher electronegativity of oxygen atom means that it attracts the electrons of the bond towards itself. Hence, the electrons of the bond between hydrogen and oxygen atoms in a water molecule are more attracted towards oxygen atom due to its higher electronegativity.
Protein, starch or natural rubber are polymers synthesized by living things.
Each cell has a size and shape that is suited to its job. Cells that do the same job combine together to form body tissue, such as muscle, skin, or bone tissue.
Answer:
The nutrients in form of calories are fats and oils. The nutrients that regulate body processes and promote growth, development and maintenance of body tissues are Proteins.
