Which of these does not explain the differential pattern of the bands of the gel

All three samples are from the same individual but were isolated from different chromosomes.

Explanation:

The patterns shown in the band cannot be from the different chromosomes of the same individual as all the chromosomes of an individual carry the same genetic material. Hence, this statement does not explain the differential pattern of the bands of the gel. The pattern of bands will be similar is samples are taken from different chromosomes of the same person.

the answer is yes, they are born/created, then they grow to their limit then produce offspring, then die.

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

hope this .. .