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TLS Online TPP Program

#Question id: 5292

A transformation experiment is performed with a donor strain that is resistant to four drugs: W, X, Y, and Z. The recipient is sensitive to all four drugs. The treated recipient population is divided up and plated on media containing various combinations of the drugs. The table below shows the results:

Drug(s) added

Number of Colonies

None

20,000

WX

76

WY

1324

WZ

1976

XY

85

XZ

69

YZ

1564

WXY

50

WXZ

62

WYZ

1354

XYZ

48

WXYZ

53

Following observation are given

A) X gene is obviously quite distant from the other three genes

B) Y gene is obviously quite distant from the other three genes

C) The Order is three closely link gene W Z Y

D) The Order is three closely link gene W X Z

Which of the following combination is correct?

#Unit 8. Inheritance Biology

  1. A and D          

  2. B and D       

  3. B and C         

  4. A and C 

More Questions
TLS Online TPP Program

#Question id: 14761

#Unit 2. Cellular Organization

Following graph represent phases of in vitro G-actin polymerization.



Which of the following is correct?
TLS Online TPP Program

#Question id: 14760

#Unit 2. Cellular Organization

During the microfilament formation, the nucleation phase is marked by:
TLS Online TPP Program

#Question id: 13158

#Unit 2. Cellular Organization

In which process, protein are first encapsulated in a membrane, then the contents of the resulting vesicle are degraded after the vesicle docks with a cytosolic lysosome.
TLS Online TPP Program

#Question id: 13157

#Unit 2. Cellular Organization

Following are the some statement . Choose the correct one?
a. Primary Lysosomes are also called storage granules, protolysosomes or virgin lysosomes. Primary lysosomes are newly formed organelles bounded by a single membrane and typically having a diameter of 100 nm. They contain the degradative enzymes which  participate in digestive process. 
b. Heterophagosomes are also called heterophagic vacuoles, heterolysosomes or phagolysosomes. Heterophagosomes are formed by the fusion of primary lysosomes with cytoplasmic vacuoles containing extracellular substances brought into the cell by any of a variety of endocytic processes.
c. Autophagosomes are able to digest intracellular structures including mitochondria, ribosomes, peroxisomes and glycogen granules. 
TLS Online TPP Program

#Question id: 13156

#Unit 2. Cellular Organization

Tay sach;s disease are caused when which enzyme is mutated or non-functional?
TLS Online TPP Program

#Question id: 13155

#Unit 2. Cellular Organization

Lysozyme is an enzyme that destroys bacterial cell walls. It does so by hydrolyzing the β(1→4) glycosidic linkages from N- acetylmuramic acid (NAM or MurNAc) to N- acetylglucosamine (NAG or GlcNAc) in cell wall peptidoglycans. The only functional groups in the immediate vicinity of lysozyme’s reactive center that have the required catalytic properties are the side chains of Glu 35 and Asp 52.
a- Glu perform reaction in its protonated state and Asp perform reaction in its deprotonated state. 
b- Glu perform reaction in its deprotonated state and Asp perform reaction in its protonated state. 
c- both in its protonated form
d- both in its deprotonated form 
Choose the correct option?