HELP PLEASE The graph below shows the radioactive decay of
rubidium-87.
Number of Half-lives
What percentage of rubidium-87 atoms will be left
after four half lives?
(1) 25.0%,
13) 6.25%
(2) 12.5
(4) 3.125%

Awire-hair terrier and a smooth-hair terrier are mated. the offspring produced are 6 wire-hair puppies and 2 smooth-hair puppies. a. what pattern of inheritance best describes this situation? b. what is the genotype(s) of the wire-haired puppies? of the smooth-haired puppies? c. what would be the expected genotype and phenotype ratios of a mating between 2 wire-haired terriers that are heterozygous?