In order to fit in the nucleus, DNA is highly organized. Which of the following structures is involved in packaging DNA?
A、Nucleosomes
B、Mitochondria
C、Golgi apparatus
D、Nucleoli
A、Nucleosomes
B、Mitochondria
C、Golgi apparatus
D、Nucleoli
A、ilium
B、pubis
C、scapula
D、pelvis
A、The blood is pumped into the right ventricle and to the pulmonary artery to be sent to the lungs where carbon dioxide is removed and oxygen is added.
B、During the systole, oxygenated is pumped out of the right ventricle into the aorta and from there through the veins to all organs of the body.
C、There are four chambers which are made up of several layers of smooth muscles.
D、The heart is roughly the size of the your fist.
A、He lived in the Eastern Jin Dynasty.
B、He was called “Sage of Chinese Poetry”.
C、He was especially good at the Regular Script.
D、Many of his original works survive today.
A、Electricity provides energy to nucleic acid,which causes the nucleic acid to move
B、The phosphate molecules that form the rails of the DNA ladder are negatively charged and will migrate toward a positive charge
C、An electrical charge releases phosphate molecules from DNA,which provides energy that allows the DNA to migrate through the agarose gel
D、The nucleobases that form the rungs of the DNA ladder are positively charged and will migrate toward a negative charge
A、A replication fork
B、A transcription bubble
C、A DNA Zipper
D、Primase
A、Single nucleobase
B、Paired nucleobases
C、Sugar molecules
D、Phosphate molecules
A、Hybrid between phage and plasmid
B、Hybrid between M13 and lambda phage
C、Modified lambda vector
D、Modified M13 vector
A、M13
B、Lambda
C、2 micron circle
D、BAC
A、sodium dodecyl sulfate (SDS)
B、ammonium sulfate
C、ferric phosphate
D、phenol
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