Select all that apply.

which of the following are methods of molecular biotechnology?
selective breeding
recombinant dna
hybridization
cloning
induced mutations
dna profiling

All

Explanation:

The study of molecular basis (study of protein and nucleic acid) of any biological activity through intervention of laboratory technology is termed as molecular biotechnology

There are several methods of molecular biotechnology such as -  

a) DNA cloning

b) Bacterial transformation

c) Chromosome integration

d) DNA polymerase & synthesis

e) Molecular hybridization

f) Polymerase Chain Reaction (PCR)

g) Expression cloning

h) Gel electrophoresis

i) Macromolecule blotting and probing

j) Arrays  

Etc.  

Hence, all are methods of molecular biotechnology

answer; i believe the correct answer is (a)0

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.