Use the pedigree on the right to determine the genotype of Ryan.

A.) XRXR

B.) XRY

C.) XRXr

D.) XrY

A pedigree for Ben and Lisa is shown. Ben is an empty square with an X Upper R Y genotype. Lisa is a half-filled circle with a X Upper R Upper X r genotype. Ben and Lisa have 2 children: Mike and Time. Mike has an empty square with a X Upper R Y genotype, and Tim has a filled square with Upper X r Upper Y genotype. Tim and Carol, who has a half-filled circle, have one child Ryan. Ryan has an empty square.

The mitochondrion functions lipid storage protein synthesis photosynthesis dna replication atp synthesis

Joe is breeding cockroaches in his dorm room. he finds that the average wing length in his population of cockroaches is 4 cm. he chooses the six cockroaches that have the largest wings; the average wing length among these selected cockroaches is 10 cm. joe interbreeds these selected cockroaches. from earlier studies, he knows that the narrow-sense heritability for wing length in his population of cockroaches is 0.6. a. calculate the selection differential and expected response to selection for wing length in these cockroaches. b. what should be the average wing length of the progeny of the selected cockroaches?

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures