Which of the following is always single stranded?
a. dna
b. mrna
c. dna & rna
d. dsrna

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11

Could you attach an image of the table ?

Idon’t know i’m just trying to get points to make me look smawt