With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 

You do each PCR reaction on chromosome 15 and load each one into a separate well of an agarose gel, and then run the gel.

  

Given the data so far, for which of the following statement is correct

#Question id: 2435

#Unit 2. Cellular Organization

The structural and functional unit of skeletal muscle is the

#Question id: 2436

#Unit 2. Cellular Organization

Cell locomotion

a. requires coordination of motions generated in different regions of the cell.

b. occurs only in cells with a defined polarity.

c. may be controlled by signaling pathways.

d. occurs in a defined sequence of steps.

#Question id: 2437

#Unit 2. Cellular Organization

Membrane extension involves

a. bending actin filaments.                   

b. myosin II.

c. the Arp2/3 nucleation of new filaments.

d. actin depolymerization.     

e. actin polymerization.

#Question id: 2438

#Unit 2. Cellular Organization

Rac, a GTPase superfamily protein,

a. is related to Ras.                             

b. may be activated by growth factors.

c. stimulates lamellipodia formation. 

d. stimulates filopodia formation.

e. stimulates stress fiber assembly.

#Question id: 2439

#Unit 2. Cellular Organization

α- and β-tubulin

a. are highly conserved.                                 

b. bind GTP.

c. hydrolyze GTP to GDP.                 

d. are found in all eukaryotes.

e. are related to the bacterial protein FtsZ.

#Question id: 2440

#Unit 2. Cellular Organization

Microtubule assembly in vitro requires

a. ATP.                                                           

b. a threshold (critical) concentration of tubulin.

c. warming the solution to 37°C.                   

d. microtubule-associated proteins.         

e. GTP.