Which animals exhibit problem solving?
a. all vertebrates
b. a few vertebrates, including primates
c. only primates
d. only humans
e. all vertebrates, and a few invertebrates
b
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Which of the following is an enzyme used in cloning that breaks covalent bonds?
A. DNA ligase B. restriction endonuclease C. reverse transcriptase D. DNA polymerase I E. polynucleotide kinase
A purine or pyrimidine that differs in chemical structure from those normally found in DNA or RNA is called a(n) ____________________
Fill in the blank(s) with correct word
During meiosis II
a. cytokinesis results in the formation of a total of two cells. b. sister chromatids of each chromosome are separated from each other. c. homologous chromosomes pair up. d. homologous chromosomes separate. e. sister chromatids exchange parts.
Why is an Rh factor conflict usually a problem only for the second child and subsequent children born to the Rh negative mother? When it is a problem for the first child?
What will be an ideal response?