A species of mice can have long or short tails. If you crossed a male mouse which is heterozygous and has a long tail with a female mouse with a short tail, what would the expected phenotypic outcome be and why?

A)
100% long tails due to the Law of Dominance.

B)
There is no way to predict the phenotypic ratio since one of the parents is heterozygous.

C)
75% long tails and 25% short tails because the dominant allele for long tail still masks the recessive short tail allele.

D)
50% long tails and 50% short tails because the heterozygous genotype increases t

Question

A species of mice can have long or short tails. If you crossed a male mouse which is heterozygous and has a long tail with a female mouse with a short tail, what would the expected phenotypic outcome be and why?
	

A)
	100% long tails due to the Law of Dominance. 	
	

B)
	There is no way to predict the phenotypic ratio since one of the parents is heterozygous. 	
	

C)
	75% long tails and 25% short tails because the dominant allele for long tail still masks the recessive short tail allele. 	
	

D)
	50% long tails and 50% short tails because the heterozygous genotype increases t

anonymous · Answer

a male mouse that is heterozygous brown with a short tail is crossed with a female mouse that is true breeding for white fur but heterozygous long tailed. 


what are the genotypes of the parents?

male:                                      Female?

anonymous · Answer

50% long tails and 50% short tails because the heterozygous genotype increases t

uri · Answer

A species of mice can have long or short tails. If you crossed because it falls within my area of expertise.

uri · Answer

2.Male.

anonymous · Answer

for #2 I believe this site might help http://www.neurofly.com/genetics_files/SM%20ch05.final.pdf