completely dominant to the allele for straight tail for an X-linked maternal effe A) A male with a curly tail received a straight tail allele from his mother. B) in order for a female to be curly tailed, her father must be curly tailed. C) A mother with a straight tail cannot have progeny with curly tails. D) A straight tailed male must have a straight tailed mother.

2) The length of your eyelashes follows an autosomal inheritance pattern. Long eyelashes (E) are dominant over short eyelashes (e). A woman with type AB blood who is heterozygous for eyelashes has children with a man who is heterozygous type-A blood and who has short eyelashes. a) Complete a Punnett square showing the possible genotypes of their offspring. b) What percent of their offspring would have short eyelashes and Type-A blood?

A white-eyed  (X-linked  recessive character)  female  fruit  fly  is  mated  to  a  red-eyed  male.  One  of their  progeny  is  a white-eyed  female.  What  is  the  most  likely  set  of  chromosomes  of  this  whiteeyed  daughter?  A)  XXY B)  XX C)  XO D)  XXX E)  XYY

In fruit flies, eye color is an X-linked trait.  Red eyes (XB) are dominant to maroon eyes (Xb). A male with red eyes mates with a female with maroon eyes. What will be the eye color of the flies in the F1 generation? A) Males: Maroon, Females: Red B) Males: Maroon, Females: Maroon C) Males: Red, Females: Maroon D) Males: Red, Females: Red E) Males: Maroon, Females: Red or Maroon

Cystic fibrosis (CF) is an autosomal recessive trait. A three-generation pedigree is shown below for a family that carries the mutant allele for cystic fibrosis. Note that carriers are not colored in to allow you to figure out their genotypes.      Normal allele =  F      CF mutant allele =  f        What is the genotype of individual #13? A) ff B) FF C) Ff  D) it is impossible to tell

A frog homozygous for a green skin color allele is crossed to a frog homozygous for a yellow skin color allele. The resulting heterozygous offspring have green and yellow stripes. What is this cross an example of? O a) Incomplete dominance O b) Codominance c) Pleiotropy d) Epistasis

3) Short tail length in cattle is caused by an X-linked recessive allele. Roan coat colour of cattle is due to co-dominance (other coat colours are red and white). a) Show the results of a cross between a bull which has a roan coat and a short tail and a white cow which is heterozygous long tail. b) What percentage of male calves will have a red coat and a short tail?

12. A heterozygous black mouse is crossed with a white mouse. a) Which color is dominant? b) How did you know? c) Which letter will stand for the dominant color? d) Which letter will stand for the recessive color? e) What is the genotype of the white mouse? f) What is the genotype of the heterozygous black mouse? g) Complete the Punnett Square below for this cross. h) What percent of the offspring will be black?

5. Red green colorblindness is a rare X-linked recessive trait. If a male has red-green colorblindness, which of the following statements would be accurate? A) His father must be color-blind B) His mother must be color-blind C) Both his mother and his father must be color-blind D) Neither the mother nor the father must be color-blind E) There is a 50% chance that his father is colorblind

Explain the following features of the Mendelian traits and fill the Punnet Squares. a)The disappearance of recessive phenotype in the F1 generation. b)The genotype of an individual expressing dominant phenotype can be differentiated by the test cross.