In the yeast cross of ade2 met14 his3 x + + +, a total of 120 tetrads are analyzed. The following tetrad types are found in the numbers shown below each tetrad. The markers ade2, met14, and his3 are abbreviated a, m, and h and the wild type allele of each gene is indicated by +.

 

Based on your numbers, calculate the distance between his2 and his4.

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#Question id: 15849

#Unit 4. Cell Communication and Cell Signaling

Host-pathogen interactions are an ongoing arms race; pathogens evolve to express unique structures that avoid host detection, and the host germline-encoded recognition system co-evolves to match these new challenges. However, because pathogens generally have much shorter life cycles than their vertebrate hosts, and some utilize error-prone DNA polymerases to replicate their genomes, pathogens can evolve rapidly to evade host encoded recognition systems. Which error prone DNA polymerase is used  by human?

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#Question id: 4861

#Unit 8. Inheritance Biology

Two character X and Y, both follow law of dominance due to 3:1 F2 phenotypic ratio monohybrid cross separately. If carry out dihybrid selfing cross for heterozygous genotype for both character does not follow law of independence assortment in normal environmental condition due to  these two loci for character are linked at 20 map unit as cis configuration. Which of the following proportional genotype that homozygous for all loci in F2 generation?

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#Question id: 24535

#Unit 11. Evolution and Behavior

If a population of fruit flies has an initial frequency of AdhF equal to 0.2, calculate the proportionate contribution of genotypes to population from given data;

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#Question id: 19801

#Unit 12. Applied Biology

The inheritance of resistance to Cry proteins in insect populations is usually _______ and is governed by one or few major genes

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#Question id: 12054

#Unit 7. System Physiology – Animal

A 54-year-old woman eats a healthy meal. Approximately 20 min later the woman feels the urge to defecate. Which of the following reflexes results in the urge to defecate when the stomach is stretched?