#Question id: 4796
#Unit 8. Inheritance Biology
Trait is encoded by genes that are expressed in only one sex . In domestic chickens, display a feather pattern in male and female
Genotype Male phenotype Female phenotype
HH hen feathering hen feathering
Hh hen feathering hen feathering
hh cock feathering (plumage pattern ) hen feathering
If cross between Hh and Hh. what is probability of their progeny with cock feathering
#Question id: 4797
#Unit 8. Inheritance Biology
Non allelic genotype aa governing white phenotype with recessive epistatic over non allelic gene B for red phenotype Which of the following cross would produce 25 % white phenotype in their offspring?
#Question id: 4798
#Unit 8. Inheritance Biology
In goats, a beard is produced by an autosomal allele that is dominant in males and recessive in females. We’ll use the symbol Bb for the beard allele and B for the beardless allele. Another independently assorting autosomal allele that produces a black coat (W) is dominant over the allele for white coat (w). A cross allowed between BBbWw (male) X BBbWw (female). What is proportional of female progeny will beard with black coat?
#Question id: 4799
#Unit 8. Inheritance Biology
You set up a mapping cross involving your favorite gene (YFG) in Neurospora and determine the following octad types: 4:4 arrangement 83; 2:4:2 arrangement 7; 2:2:2:2 arrangement 10. What is the distance between your gene and the centromere?
#Question id: 4800
#Unit 8. Inheritance Biology
You set up a mapping cross involving two genes of interest in Saccharomyces and determine the following tetrad types: 8 nonparentalditype; 12 tetratype; 80 parental ditype. Calculate the most accurate map distance between these two genes.
#Question id: 4801
#Unit 8. Inheritance Biology
You set up a mapping cross involving two genes in Aspergillus and determine the following percentages of tetrad types: parental ditype 51%, nonparentalditype 49%. What can you say about your genes?