An alien race known as the Wombatian Wilburys has the same genetic structure as humans (i.e., same genomes). Interestingly, the
Wombatian Wilburys enjoy much of the same food as humans. Two autosomal genes are of interest:Chicken, with alleles: W = White-meat lover (dominant) and w = dark-meat lover (recessive).Potato, with alleles: M = Mashed potato lover (dominant) and m = baked potato lover (recessive).Consider a parental cross of a true-breeding White-meat loving, Mashed potato loving male with a true-breeding Dark-meat loving, Baked-potato loving female. The F1 females produced by this cross are mated with Dark-meat loving, Baked-potato loving males in a test cross. The progeny resulting from the test cross are listed below.Table 1. Counts of genotypes from F1 crossGenotype CountW-M 258W-m 259w-M 261w-m 259Are these genes linked? Recall, linked means that the distance is less than 50 centimorgans, tightly linked means that the distance is close to 0, and unlinked means that the distance is 50 centimorgans or more.A. No.B. They are on the same sex chromosome.C. The question cannot be determined from the information given.D. Yes.E. They are on the same autosome and tightly linked.
The answer is C. Pheromones are hormones (which are proteinous) produces by individuals of the same species and are a means to send communication signals for social interactions. They signal alarm, food and even sex. Sex pheromones are released by females beetles into the environment to signal their availability for mating. The pheromones are picked up by receptors on the male beetles and this is how they find the females.
