The Lock and Key Analogy of Enzymes and Substrates: Enzymes act as a catalyst in a given chemical reaction (for example, lactase allows lactose to break down into Glucose and Galactose); enzymes lower the amount of energy required to make a reaction occur. There is a key concept to this theory: Enzymes are designed work for only one reaction; there is only one key that fits the lock perfectly. Without enzymes, our bodies wouldn't be able to handle the amount of heat the reactions that occur inside if there weren't any enzymes (or the reactions just wouldn't occur! In the Lock and Key Analogy, the substrate (Lactose in the <span>example) is the "key".</span>
Melting I believe I may be wrong but I’m almost certain
<u>r</u> <u>r</u>
<u>R</u> Rr Rr
<u>r</u> rr rr
Genotype of the mother with freckle trait is rr. This means that it is a recessive trait.
Genotype of of the father having clear facial skin is Rr, showing that it is a dominant trait. There can be two genotypes for this trait that is Rr and RR.
When these parents are crossed, they produce 50% offsprings with the freckles trait (rr) and 50% with clear facial skin ( Rr).
Therefore, the likelihood of the first child with freckles is A
Hope this helped , Danielle xo
Answer:
I think it is C
Explanation:
Because cohesion is when insects are able to stand on water and not go through. Cohesion is the attraction between molecules of the same substance
