The replacement model is supported by

evidence from
a. the fossil record.
b. DNA sequencing data from mitochondria.
c. DNA sequencing data from chromosomes.
d. global climate change patterns.
e. all of these.


E

Biology & Microbiology

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In genomic libraries:

(a) naturally and arti?cially selected plants are genetically engineered. (b) DNA fragments are stored in plasmids. (c) a virus is used to transform human cells. (d) none of the above are done.

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An antibody molecule consists of a total of

a. two polypeptide chains. b. four polypeptide chains. c. two polysaccharide chains. d. four polysaccharide chains. e. four phospholipids chains.

Biology & Microbiology

What two enzymes do DNA researchers need

to cut and paste DNA from different sources?

a. restriction and ligases b. restriction and polymerases c. ligases and polymerases d. restriction and helicases e. helicases and polymerases

Biology & Microbiology

The ________ is a viral respiratory disease that is preventable by a yearly vaccination

Fill in the blank(s) with correct word

Biology & Microbiology