Ultraviolet radiation.
Scientist say it absorbs the radiation and protects the earth.
-Steel jelly
Answer:
P1 = GGBB ( purple stem with green leaves )
P2 = GGyy ( purple stem with yellow leaves )
Explanation:
<u>Determine the two most likely genotypes of the P ( P1 and P2 ) generation</u>
From table :
purple stem with green leaves occurs 90% ( dominant trait )
Green stem with green leaves occurs 30% ( recessive trait )
let : G = purple stem , g = green stem , B = green leaves, y = yellow leaves
<em>Hence the two most likely genotypes of P1 and P2 are : </em>
P1 = Purple stem with green leaves – GGBB (P-90%, F1-60%) ( from table attached below )
P2 = Purple stem with yellow leaves – GGyy (P-10%, F1-10%) ( from table attached below )
Answer;
-Botulin
Explanation;
Botox injections smooth facial wrinkles because botulin is an ACh antagonist that blocks the underlying facial muscles.
-Botox injections are the best known of a group of medications that use various forms of botulinum toxin to temporarily paralyze muscle activity. This toxin is produced by the microbe that causes botulism, a type of food poisoning.
-These botox injections have the ability to reduce the appearance of some facial wrinkles. They are also used to treat such problems as repetitive neck spasms, excessive sweating, overactive bladder and lazy eye.
-Botulinum toxin acts by binding presynaptically to high-affinity recognition sites on the cholinergic nerve terminals and decreasing the release of acetylcholine, causing a neuromuscular blocking effect.