What is the purpose of RNaseH in the making of cDNA?
A. It copies the mRNA into a complementary DNA strand.
B. It reforms the sugar-phosphate backbone.
C. It generates short RNAs that are used as primers
D. It proofreads the cDNA for errors.
C
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Nucleic acid probes are NOT suitable for the detection of viruses
Indicate whether the statement is true or false.
Which process establishes the three primary cell layers?
1.cleavage 2.blastulation 3.fertilization 4.gastrulation
Which of the following systems is the first to begin
development in the human embryo? a. nervous system b. excretory system c. reproductive system d. skeletal system e. endocrine system
Which of the models in Figure 52-1 would elicit an attack response from another male stickleback?
a. 1 and 2
b. 1, 2, 4, and 5
c. 2, 3, and 5
d. 1, 3, 4, 5, and 6
e. 1 through 6