5 Steps to a 5 AP Biology, 2014-2015 Edition

122 ❯ STEP 4. Review the Knowledge You Need to Score High proteins that it encodes. DNA must first be transcribed into an interm ...

Molecular Genetics ❮ 123 Translation of RNA Now that the mRNA has escaped from the nucleus, it is ready to help direct the const ...

124 ❯ STEP 4. Review the Knowledge You Need to Score High Large ribosomal subunit mRNA A site (b) Small ribosomal subunit tRNA ♦ ...

Molecular Genetics ❮ 125 which tRNA binds next, and that tRNA molecule sits in the A site of the ribosome. An enzyme helps a pep ...

126 ❯ STEP 4. Review the Knowledge You Need to Score High Because gene expression in eukaryotes involves more steps, there are m ...

Molecular Genetics ❮ 127 DNA is quietly reproduced by the cell every time the cell reproduces itself, and this allows the virus ...

128 ❯ STEP 4. Review the Knowledge You Need to Score High Generalized Transduction Imagine that a phage virus infects and takes ...

Molecular Genetics ❮ 129 similar sticky ends. The DNA can be attached to the plasmid, creating a vector that can be used to tran ...

130 ❯ STEP 4. Review the Knowledge You Need to Score High ampicillin resistance gene will survive, while those that have not wil ...

Molecular Genetics ❮ 131 Which of the following is the correct sequence of events that must occur for translation to begin? A. ...

132 ❯ STEP 4. Review the Knowledge You Need to Score High D—During translation, the P siteholds the tRNA carrying the growing p ...

Molecular Genetics ❮ 133 Rapid Review Briefly review the following terms: DNA:contains A and G (purines), C and T (pyrimidines), ...

134 ❯ STEP 4. Review the Knowledge You Need to Score High Nonsense mutation:substitution of wrong nucleotide into DNA that produ ...

Molecular Genetics ❮ 135 Genetic Engineering Restriction enzymes:enzymes that cut DNA at particular sequences, creating sticky e ...

CHAPTER 12 Evolution IN THIS CHAPTER Summary:This chapter discusses evolution and the four major modes in which it occurs. It in ...

Evolution ❮ 137 Introduction This chapter begins with an introduction to the concept of evolution and the four major modes in wh ...

138 ❯ STEP 4. Review the Knowledge You Need to Score High could think of situations in which migration is not random. For exampl ...

Evolution ❮ 139 It is easiest to illustrate natural selection with an example. Let’s revisit our pond before the tornado came, w ...

140 ❯ STEP 4. Review the Knowledge You Need to Score High Adaptations Anadaptationis a trait that if altered, affects the fitnes ...

Evolution ❮ 141 These three processes describe the way in which allele frequencies can change as a result of the forces of natur ...