Chapter Questions
List the order of nucleotides on the mRNA that would be transcribed from the following DNA sequence:CGATTACTTA.
How can the following RNA fold up through internal base pairing? GUGUGCCGUUAGACUGACCGUCUAACGGCAGCACC.
Describe the process of nuclear transfer used in cloning.
Transcription _____A. synthesizes new daughter DNA molecules from an existing DNA molecule; B. results in the synthesis of an RNA copy of a gene; C. pairs thymines (T) with adenines(A); D. occurs on ribosomes.
TranslationA. uses mRNA as a template; B. links tRNA molecules covalently; C. involves binding of a ribosome to DNA;D. occurs in the nucleus; E. produces a protein that is complementary to its gene sequence.
During the process of transcription,A. DNA serves as a template for the synthesis of more DNA; B. DNA serves as a template for the synthesis of RNA; C. DNA serves as a template for the synthesis of proteins; D. RNA serves as a template for the synthesis of proteins.
Gene expression can be regulated at the level ofA. mRNA stability; B. transcription initiation; C. chromosome accessibility; D. all of the above.
The RNA polymerase enzyme binds to initiating transcription.A. amino acids; B. tRNA; C. the promoter sequence; D. the ribosome.
A particular triplet of bases in the coding sequence of DNA is TGA. The anticodon on the tRNA that binds to the mRNA codon isA. $\mathrm{TGA} ; \mathrm{B} . \mathrm{UGA} ; \mathrm{C.UCU} ; \mathrm{D} . \mathrm{ACU} .$
RNA and DNA are similar becauseA. both are double-stranded helices; B. uracil is found in both of them; C. both contain the sugar deoxyribose;D. both are made up of nucleotides consisting of a sugar, a phosphate, and a base.
True/False: A kidney cell and a heart cell from the same cat would have the same genes.
True/False: Scientists know that genetically modified crops do not hurt the environment.