Answer:
3rd generation = 2 Hybrid DNA molecules + 6 Light DNA
In Percentage 2÷8 × 100 = 25%
25% of the DNA are hybrid
Explanation:
Semi conservative model proposed by Watson and Crick states that one strand of the DNA comes from parent DNA which act as a template for the other newly formed strand.
First generation:
If cells containing 15 N DNA are transferred to a medium with only 14 N then in initial first generation two parent strands becomes separated and act as template for newly synthesized strands. this means that in first generation both DNA molecules are hybrid, one strand of 15 N DNA and other strand of 14 N DNA
Ist generation = 2 Hybrid DNA molecules
Second generation:
In Second generation these two hybrid molecules become unzip. Two strands are 15N and two strands are 14N. All these 4 strands act as template and 4 new strands are synthesized. The molecules of Hybrid DNA is still 2 with 2 molecules of Light DNA.
2nd generation = 2 Hybrid DNA molecules + 2 Light DNA
Third generation:
In Third generation these two hybrid molecules and two light DNA molecules become unzip. Two strands are of 15N and six strands are of 14N. All these 8 strands act as template and 8 new strands are synthesized. The molecules of Hybrid DNA is still 2 with 6 molecules of Light DNA.
3rd generation = 2 Hybrid DNA molecules + 6 Light DNA
In Percentage 2÷8 × 100 = 25%
25% of the DNA are hybrid
Answer:
major crops in permanent agriculture includes trees and shrubs.these are not totation crops,harvesting for more then five years.for example apple,citrus fruits,blueberry etc.
these crops need afuquate temperature and good soil for cutivation.
So the breakdown of lipids actually starts in the mouth. Your saliva has this little enzyme called lingual lipase, which breaks down these fats into something called diglycerides. These diglycyerides then make there way to the intestines, where they stimulate the pancreas to release lipase (another fat breaking enzyme!) and the pancreas to release bile. The bile and pancreatic juices both work together to break these diglycerides into fatty acids. It’s helpful to know some of the root words. Glycerol- the framework to which the fatty acids stick. Glyceride- think of this guy as several fatty acids stuck to a glycerol. Lipids- think fats, and their derivatives (our glyceride friends.) tri/di/mono- these are just number prefixes! Lipids are one glycerol molecule, and then either one, two, or three fatty acids attached, which is where you get mono(1)/di(2)/tri(3)glyceride from. I know this was long, but hopefully it helps!
