Genetic information is passed on from a parent to a child via the process of meiosis. When the cells divide, the four games produced are all different. Even though they all have the same number of chromosomes and carry information about the same characteristics, the specific information varies. For example, a homologous pair of chromosomes carry the gene for eye colour, where one chromosome caries the gene and holds information for a for blue eye colour and the other specifies brown eyes. When this cell forms gametes, half will have the information carrying for blue eyes and the other half will have the information for brown eyes. So, for Sarah and Helen to have blue eyes, it is clear that they both have the gene that carries information for their mother's blue eye colour.
Answer:
Most of the cholesterol molecule in non-polar and therefore associations with the non-polar fatty acid tails of the phospholipids. However, the hydroxyl group (-OH) on cholesterol carries a negative charge and therefore associates with the polar environment of water either inside the cell or outside.
Explanation:
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True, a lot of cultivated fields use fertilizers that can be harmful to fish
Why do photosynthesis and respiration have such a great relationship?
<h3><u>Solution;</u></h3>
→ Photosynthesis produces the oxygen to replenish oxygen that is used up by living organisms during respiration.
→ Carbon dioxide produced during respiration is one of the reactants plants need to perform photosynthesis.
• Photosynthesis and respiration are both part of a mutually beneficial relationship.
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Answer:
250 nm
Explanation:
Data provided in the question:
Length of the bacteria cell = 2.5 micrometers (µm)
Now,
We know that,
1 m = 10⁶ µm
or
1 µm = 10⁻⁶ m
also,
1 m = 10⁹ nm
or
10⁻⁹ m = 1 nm
Therefore according to the above results we get,
2.5 micrometers (µm) = 2.5 × 10⁻⁶ m
and,
2.5 × 10⁻⁶ m = ( 2.5 × 10⁻⁶ ) × 10⁹ nm
= 2.5 × 10³
= 250 nm