Part C A dominant wild-type allele D produces full enzyme function, but a recess
ID: 219087 • Letter: P
Question
Part C A dominant wild-type allele D produces full enzyme function, but a recessive allele di produces no functional enzymatic action, and a recessive allele d2 produces reduced enzyme function. Western blot analysis of the proteins produced by organisms with different genotypes for this gene gives the results shown. Why might there be just one protein band for organisms with the did2 and d2d2 genotypes? One band in did2 is explained by irreversible binding of antibodies with the d2 allele product. One band in dad2 is explained by the fact that both d2 alleles code for production of the same protein. One band in did2 is explained by the lack of protein product of d2 allele. One band in d2d is explained by the fact that the d2d2 genotype is capable of producing a certain amount of wild type protein product. One band in did2 is explained by the lack of protein production from the di allele and the production of the faster migrating form by the d2 allele. One band in dod2 is explained by the fact that both d2 alleles code for production of the same protein. Genotype DD Dd, Dd did, dd, dd One band in did2 is explained by the fact that both the di and d2 alleles produce products that are the same size Submit Request AnswerExplanation / Answer
The correct answer is option C that is one band in d1d2 is explained by the lack of protein production from the d1 allele and the production of the faster migrating form by the d2 allele. One band in d2d2 is explained by the fact that both d2 alleles code for production of same protein.
Option A is wrong antibody binding does not explain single band appearance.
Option B is wrong as d2 protein does not lack protein product.
Option D is wrong because if both allele produces same protein product then d1d1 would have had the band but it does not have any band.