Tiếng Anh chuyên ngành- review 3 lessons

Find the word:

FORMATRANSTION

Find the word:

LONGCIN

Find the word:

LASMPID

Find the word:

COMEBIRNANT

In DNA cloning, the DNA extracted from an organism is cut into fragments with/using……………

Arrange the following events in the proper order for gene cloning.

1 = Incorporate gene into bacterial plasmid

2 = Isolate DNA from organism containing desired gene

3 = Incorporate cloned gene into bacterial cells

4 = Fragment DNA with restriction enzyme

• 1-2-3-4

• 2-3-4-1

• 3-1-4-2

• 2-4-1-3

The recombinant plasmids are incorporated into bacterial host cells by………….

Arrange the following steps in the proper order in which they occur during a single PCR cycle.

1. Addition of DNA nucleotides by Taq polymerase

2. Complementary base pairing between primers and target DNA

3. Heat separation of strands of target DNA

• 1-2-3

• 2-3-1

• 3-1-2

• 3-2-1

PCR requires all of the following EXCEPT

• A. primers.

• B. DNA ligase.

• C. DNA polymerase.

• D. deoxyribonucleotides.

• E. RNA template

In DNA, guanine always pairs with ………… by forming ………… across complementary strands.

• A. Adenine; hydrogen bonds

                        

• B. Cytosine; hydrogen bonds

• C. Guanine; hydrogen bonds

•   D. Cytosine; covalent bonds

• E. Guanine; covalent bonds