Sunday, August 2, 2009

Male calico cats?

Male calico cats could be the result of...





A) a reciprocal translocation





B) recessive alleles retaining their fundamental natures even when expressed





C) nondisjunction, leading to the male calico having two X chromosomes





D) incomplete dominance of multiple alleles





E) sex-linked inheritance

Male calico cats?
C





http://www.peteducation.com/article.cfm?...
Reply:C is the only possible. Two copies of the "calico" gene are needed to produce the calico phenotype. The "calico" gene is on the X chromosome.
Reply:C) nondisjunction, leading to the male calico having two X chromosomes
Reply:You must have information about the situation of the genes and alleles and any other environmental effect to answer that. So don't be lazy and read some of your course book about that. Good luck
Reply:(C) nondisjunction. That's why male calico cats are so rare, and why, when they do exist, they have a host of mental and developmental problems.


No comments:

Post a Comment