Fauna hypotheticus crosses with a closely related animal thathas 2n = 40 small chromosomes. They produce a viable hybridoffspring. Studies of the chromosomes of the hybrid animal duringmeiosis show both paired and unpaired chromosomes.
2.2 a. How many chromosomes are found in somatic cells of thehybrid offspring? (1)
b. Explain why the hybrid animal is sterile. (1)
c. Explain the presence of the paired chromosomes. (1)
