ביוטכנולוגיה אנליטית

Discuss, Learn and be Happy דיון בשאלות

• «
• 1
• 2
• 3
• 4
• 5
• »

Which among the following helps us in getting a three-dimensional picture of the specimen

-

1

+

שאלה #56786

		Transmission Electron Microscope
done		Atomic force microscope
		Dynamic light scattering
		Simple Microscope

• gavel
• mood_bad
• share

הגב

מיין לפי דירוג חדש ישן

Fill in the blank with the appropriate analytical method in regard to retrogradation studies: The most important advantage is the non-destructive character of ____. This means that the changes in exactly the same sample are monitored over storage time.

-

1

+

שאלה #56787

done		NMR
		X-Ray
		DSC
		Raman

• gavel
• mood_bad
• share

הגב

מיין לפי דירוג חדש ישן

Cleavage of the Cα-CO bond in a peptide yields these types of peptide fragments

-

1

+

שאלה #56788

		a,b
done		a,x
		b,y
		c,z

• gavel
• mood_bad
• share

הגב

מיין לפי דירוג חדש ישן

Which of the following masses is comprised of the lightest isotopes

-

1

+

שאלה #56789

		Average mass
		Most abundant mass
		Nominal mass
done		Monoisotopic mass

• gavel
• mood_bad
• share

הגב

מיין לפי דירוג חדש ישן

SARS-CoV-2 shares approximately __% genomic homology with SARS-CoV

-

1

+

שאלה #56790

		49.5%
		65%
mood		79.5%
		91%

• gavel
• mood_bad
• share

הגב

מיין לפי דירוג חדש ישן

Which of the following formulae has 73 m/z in a mass spectrometry experiment using MALDI device (1 proton

-

1

+

שאלה #56791

		C3H8N2
done		C4H11N
		C4H10O
		C3H5NO

• gavel
• mood_bad
• share

הגב

מיין לפי דירוג חדש ישן

In an MS the trajectory depends on

-

1

+

שאלה #56792

		Ion charge
		Mass
		Magnetic field
done		All of the above

• gavel
• mood_bad
• share

הגב

מיין לפי דירוג חדש ישן

When we want to understand the methylation profile on the DNA we use a bisulfite reagent which converts

-

1

+

שאלה #56793

		All the methylated C bases to U bases
sentiment_very_satisfied		All the unmethylated C bases to U bases
		All the methylated T bases to G bases
		All the unmethylated T bases to G bases

• gavel
• mood_bad
• share

הגב

מיין לפי דירוג חדש ישן

Y-B peptide fragmentation

-

1

+

שאלה #56794

done		The cutting takes place between 2 amino acids
		The cutting takes place between the 2 carbons inside the amino acid
		The cutting takes place between the carbon and the nitrogen inside the amino acid
		All the answers are incorrect

• gavel
• mood_bad
• share

הגב

מיין לפי דירוג חדש ישן

The MALDI ionization method

-

1

+

שאלה #56795

		Adds an indefinite number of protons
		Adds 5 protons
		Adds 2 protons
done		Adds only one proton

• gavel
• mood_bad
• share

הגב

מיין לפי דירוג חדש ישן

• «
• 1
• 2
• 3
• 4
• 5
• »