The Lock-and-key mechanism was first proposed by Emil Fischer which described as the enzymatic reactions whereby an enzyme with a single substrate binds temporarily to form a substrate complex.
The lock-and-key mechanism is usually associated with the complementary shapes of an enzyme with a single substrate, wherein the lock that is being referred to is the enzyme and the substrate is the key. One right sized substrate (key) fits into the active site (key hole) of the enzyme (lock).
The active site which is mentioned above is structurally complementary to the substrate. This is the temporary binding site on the enzymes. Just like a lock and key, the enzyme as the lock and the substrate as the key is said to fit together.
Answer:
60 grams
60 milliliters of water weighs 60 grams. (or precisely 60 grams.
Explanation:
<span>The answer is c, incomplete dominance. The dominate trait of the red petals is their red color. The dominate trait for the white petals is their white color. When their offspring have pink petals, neither parental phenotype trait is dominate over the other. Their colors are equally represented in the pink color of the offspring, which shows incomplete dominance - a case where neither parental phenotype is more visible than the other. The ratio of their colors represented in the offspring is one to one.</span>
Answer:
seed cones and pollen cones
Explanation:
In gymnosperms, their reproductive structures include the pollen cones, which produce pollen grains or the male gametophyte; and the seed cones, which produce female gametophyte.
