How do the genes in our DNA influence our characteristics? For example, how can a gene determine
whether a person is an albino with very pale skin and hair?
Basically, a gene is a segment of DNA that provides the instructions for making a protein, and
proteins influence our characteristics. This chart describes how two different versions of a gene result
in two different versions of a protein which in turn can result in either normal skin and hair color or
albinism.
DNA Protein Characteristic
Version of the gene that provides
instructions to make
normal protein enzyme
Normal enzyme that makes the
pigment molecule in skin and
hair
Normal skin and hair
color
Version of the gene that provides
instructions to make
defective enzyme
Defective enzyme that does
not make this pigment
molecule
Albinism (very pale
skin and hair)
A gene directs the synthesis of a protein by a two-step process.
The first step is transcription of the gene in the DNA.
Transcription produces a messenger RNA (mRNA) molecule.
The second step is translation of the mRNA molecule.
Translation produces a protein molecule.
During transcription, the sequence of
nucleotides in a gene in the DNA is
copied to a corresponding sequence
of nucleotides in mRNA.
During translation, the sequence of
nucleotides in the mRNA determines
the sequence of amino acids in the
protein.
After translation, the sequence of amino acids in the protein determines the structure and function of
the protein. Differences in protein function can influence characteristics such as normal skin and hair
color vs. albinism.
Answer:
Of the 92 natural elements, 25 are essential for life. Of these, there are six main elements that are the fundamental building blocks of life. They are, in order of least to most common: sulfur, phosphorous, oxygen, nitrogen, carbon, and hydrogen.
Explanation:
I think the answer will be C (Uterus).
Answer:
Both
Explanation:
Baking soda is the common name of sodium bicarbonate or sodium hydrogen carbonate. Both the empirical and molecular formula of sodium bicaronate is NaHCO3 .
Baking soda is soluble in water and has a molar mass of almost Molar mass: 84.007 g/mol.
If we look at molecular formula of NaHCO3, it has molar ratio of 1:1:1:3 and we can say that every thing in this molar ratio make whole mass as : 23g +1 g +12 g+48 g= 84 grams.
Since we know that empirical formula demonstrates the simplest ratio of elements present in a compound and molecular formula demonstrates the total molar ratio of each element in a compound, hence we see that its empirical and molecular formulas both are already simple because they have simplest ratio which cannot be simplified further.
Hope it help!
