BIOL 133 Week 8 Chapter 12 Study Questions

BIOL 133 Week 8 Chapter 12 Study Questions What statement describes X-linked traits? Select all that apply. Sickle cell anemia is a recessive trait. A cross between two heterozygotes would produce what phenotypic ratio? Marfan syndrome is a dominant trait. A cross between a homozygous dominant and a heterozygote would produce what phenotypic ratio? If a cross for widow’s peak was conducted between a homozygous dominant and a heterozygote, it is expected that all organisms of the offspring will have widow’s peak. Even though all have the widow’s peak, they can _________. A and Z are independent events. The probability that A occurs is ¼. The probability that Z occurs is ¼. What is the probability that both will occur? If genes are completely linked, all the offspring will be _________. Low pitched male voices (RR) and a high pitched male voice (rr). Heterozygotes have a baritone voice. This is an example of _________.