geneticist is working with a new bacteriophage called phage Y3 that infects E. coli. He has isolated eight mutant phages that fail to produce plaques when grown on E. coli strain K. To determine whether these mutations occur at the same functional gene, he simultaneously infects E. coli K cells with paired combinations of the mutants and looks to see whether plaques are formed. He obtains the following results. (A plussign means that plaques were formed on E. coli K; a minussign means that no plaques were formed on E. coli K.)

How many cistron belong to these mutation?

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#Question id: 1286

#SCPH06 I Botany

Syndecans are cell-surface proteoglycans that:

a. bind to collagens.

b. bind to multi-adhesive matrix proteins.

c. anchor cells to the extracellular matrix.

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#Question id: 27755

#Research Methodology

The conclusion of a research report:

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#Question id: 15726

#SCPH01 Biochemistry

Tissues and cells cultured in a liquid medium produce culture of single cells and cells clumps of few to many cells

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#Question id: 99

#I Life Science/ Life Sciences Group – I-V

Which of the following are the main reasons that glycoproteins are so diverse when compared to other proteoglycans are

A) they may contain different sugars in different combinations and chain lengths.

B) β or a-glycosidic linkages may join various carbon atoms in the sugars.

C) they are found in both bacterial, plant and animal cells.

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#Question id: 5241

#SCPH06 I Botany

Genes a, b, and c are widely spaced in the bacterial genome. Transducing phage from an a+ b+ c+ bacterium were used to infect a culture of a- b- c- cells, and b+ transductants were selected. Which of the following best describes the predicted genotypes of these transductants?