The function of a vector in genetic engineering is to
A. separate fragments of DNA by their length and electrical charges.
B. cut DNA into many fragments.
C. link together newly joined fragments of DNA.
D. introduce rDNA into a host cell.
E. make millions of copies of a specific segment of DNA.
Answer: D
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Pigment is contained in an eyespot or ________ that helps certain organisms orient to light.
Fill in the blank(s) with the appropriate word(s).
Which protein performs a function similar to that of clathrin but in potocytosis instead of receptor-mediated endocytosis?
a. insulin b. beta galactosidase c. caveolin d. vesicolin
Which of the following was determined by
Rosalind Franklin’s research?
a. DNA is a double helix b. DNA has a phosphate backbone on the outside c. DNA bases are arranged on the inside d. DNA’s diameter e. all of these were determined by Rosalind Franklin’s research
Microbes that cause disease are referred to as ________
Fill in the blank(s) with correct word