Ga biologist feeds cultured islet cells radioactive cysteine amino acids that get incorporated into newly synthesized proteins. the signal peptide of proinsulin (the sequence that directs it to the rough er) does not contain any cysteines. where would radioactive insulin be found?

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.