Question

vields black aegene is r-quired to produce orange cas fur the recesstvo little o orange fur altemating with patterns of is allele of O allele of the X-linked orange wah gene yields black fur. Tortoisesheil cats have coats with patches of hich of the following terns of black fur 3. ) ange female oroses could produce a XX fama ortoise B. Black female x orange C. Orange female x o ange D. Two of the above couloace a female E. All of the cld xduce a female tortoiseshell cat male blo above could produce a female tortoiseshell cat 14.)n a cross between a female tortoiseshell cat and a maie black cat which uce a XXY male tortoiseshell cat? R Nonduction in melosis I of either the female or male cat в, unction in meiosis li of either the female or male cat ondisjunction in either melosis I or meiosis II of the female cat D. Nondisjunction in either meiosis 1 or meiosis Il of the male cat are red-eyed For 15-16: When a red-eved female fly is crossed to a white-eyed male tly all When two red-eyed F1 flies are crossed, all females are red-eyed, but there is 1:1 r males scored. The ratio curly-winged males. In a separate cross, two curly-winged flies are mated and the progeny are of curty-winged to normal-winged flies is 2:1, respectively. In fact, all crosses between flies produce nearly the same ratio among both the male and female p 15. Which gene is autosomal, and which gene is X-linked? A. Eye color- autosomal; wing morphology -X-linked Eye color - X-linked, wing morphology- autosomal C. Both genes are autosomal D. Both genes are X-linked 16. yhat is the phenotypic ratio among the male progeny eyed produced by crossing two fles that are red- and curly-winged? (The female is heterozygous for the eye color gene.) A. 2:1 B. 3:1

Answer 1

13. option D two of the above could produce.

14. option A non-disjunction at meiosis I in either female or male cat.