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Freckles (F) and six fingers (S) are dominant alleles in humans and the genes occur on different chromosomes. If an FfSs male and an FfSs female have a WHOLE BUNCH of kids, Here are the expected ratios below. 9: freckles/ 6 fingers 3: freckles/ no 6 fingers 3:no freckles/ 6 […]

In examining M. rattus, you realize that the animal has many eyecolors. You perform the following crosses.Cross         Parents                                            Progeny (ratio of phenotypes)1                blue eye X yelloweye                     all green2                blue eye X blueeye                         3 blue : 1 red3                blue eye X browneye                     1 blue : 1 green : 1 yellow: 1 […]

1. Pattern recognition receptors (PRR) include: A. Lectin-like molecules. B. Lipoteichoic acid. C. LPS. D. PAMPs. E. Unmethylated CpG sequences. 2. The mononuclear phagocyte system does not include: A. Endothelial cells. B. Kidney mesangial cells. C. Kupffer cells. D. Lymph node medullary macrophages. E. Monocytes. 3. A polymorphonuclear neutrophil (PMN): […]

A double-stranded fragment of viral DNA, one of whose strands is shown below, encodes two polypeptides called vir-1 and vir-2. Adding this double stranded DNA fragment to an in vitro transcription and translation system yields peptides of 10 residues (vir-1) and 5 residues (vir-2).  5′-AGATCGGATGCTCAACTATATGTGATTAACAGAGCCTGCGGCATAAACT-3′ (a) What are the nucleotide […]