The type of plumage found in mallard ducks is determined by three alleles at a single locus: MR, which encodes restricted plumage; M, which encodes mallard plumage; and md, which encodes dusky plumage. The restricted phenotype is dominant over mallard and dusky; mallard is dominant over dusky (MR > M > md). The expected phenotypes and proportions of offspring is 3/4 restricted, 1/4 mallard by which of the following crosses?

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#Question id: 28771

#Unit 2. Cellular Organization

Which of the following sorting signal that directs lysosomal hydrolases from the TGN to the late endosome?

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#Question id: 31358

#Unit 3. Fundamental Processes

sRNA of E. coli is the 81-nucleotide RNA which is involved in the 

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#Question id: 2949

#Unit 2. Cellular Organization

A culture of cells is given 3H-thymidine for 30 minutes; then a sample of the cells is fixed and examined by autoradiography. It is found that:

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#Question id: 28376

#Unit 5. Developmental Biology

Dorsal protein which allow to ventral cell fate of the embryo, its high concentration in the most ventral cell nuclei to become which of the following fate?

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#Question id: 4082

#Unit 3. Fundamental Processes

Which of the following is (are) not involved in alternative splicing in eukaryotes?