#Question id: 4785
#XL - R Botany
One form of white eye is a recessive X-linked gene in Drosophila. From a mating of a heterozygous wild-type Drosophila female with a white-eyed male, what is the probability of wild type offspring?
#Question id: 4790
#XL - R Botany
The F2 genotypes of two independently assorting gene A and B with complete dominance result in a 9 : 3 : 3 : 1 ratio of phenotypes if there is no interaction between the genes. Following modify phenotypic ratio of 9:3:3:1 given as following table (p - phenotype) Which of the following correct matching of gene interaction and their deviated phenotype ratio?
#Question id: 4793
#XL - R Botany
Hypophosphatemia is caused by an X-linked dominant gene in humans. Normal man marries with Hypophosphatemia woman whose father is normal. What will be observation in their child is correct?
a. All daughters affected b. half of their daughters affected
c. All sons affected d. half of their son’s affected
#Question id: 4797
#XL - R Botany
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: 4799
#XL - T Zoology
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
#XL - T Zoology
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.