Dihydrotestosterone binds to what cells

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons

Physical characteristics of down syndrome

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.