Term
Which of the following is untrue of DNA?
A. It stores information
B. It can be replicated
C. It undergoes mutation
D. It remains constant among different species
E. It has variability between species |
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Definition
D. It remains constant among different species |
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Term
Which of the following is not a nucleotide found in DNA?
A. Adenine
B. Cytosine
C. Uracil
D. Guanine
E. Thymine |
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Definition
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Term
If you were a biologist and you were studying purines, which of the following molecule(s) would you be studying?
A. Adenine and guanine
B. Adenine only
C. Thymine and cytosine
D. Uracil only
E. Thymine only |
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Definition
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Term
Which of the following would not be found in DNA?
A. Adenine
B. Uracil
C. Cytosine
D. Thymine
E. Guannine |
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Definition
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Term
Which of the following best describes the chemical composition of a nucleotide?
A. a nitrogen-containing base and a pentose sugar
B. a nitrogen-containing base, a phosphate and a pentose sugar
C. a phosphate and a pentose sugar
D. a nitrogen-containing base, a phosphate, and a hexose sugar |
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Definition
B. a nitrogen-containing base, a phosphate and a pentose sugar |
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Term
A biologist is studying the process of how DNA is copied. Which of the following would he/she be studying?
A. DNA transcription
B. DNA elongation
C. DNA translocation
D. DNA polymerase
E. DNA replication |
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Definition
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Term
During the process of transcription, the information in:
A. Protein is converted to RNA information
B. RNA is converted into protein information
C. RNA is converted into DNA information
D. DNA is converted into RNA information
E. DNA is converted into protein information |
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Definition
D. DNA is converted into RNA information |
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Term
Which of the following processes does not take place during translation?
A. Attachment of a ribosome to mRNA
B. The number of codons in mRNA
C. The enzyme that attaches the amino acid to tRNA
D. The proteins associated with rRNA
E. The sequence of anticodons |
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Definition
E. The sequence of anticodons |
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Term
Which is most directly responsible for the sequence of amino acids in a protein?
A. the sequence of codons in mRNA
B. the number of codons in mRNA
C. the enzyme that attaches the amino acid to tRNA
D. the proteins associated with rRNA
E. the sequence of anticodons |
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Definition
A. the sequence of codons in mRNA |
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Term
Each codon is made up of this number of bases:
A. 64
B. 20
C. 16
D. 4
E. 3 |
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Definition
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Term
A biochemist is studying the process of how a protein chain is assembled. Which of the following would they be studying?
A. Replication
B. Translocation
C. Translation
D. Mutation
E. Transcription |
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Definition
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Term
If you were trying to isolate the molecule which carries genetic information from the nucleus to where proteins are manufactured, you would be studying whcih of the following molecules?
A. RNA polymerase
B. mRNA
C. DNA polymerase
D. rRNA |
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Definition
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Term
The function of transfer RNA is to:
A. carry amino acids to ribosomes
B. transfer nucleotides to the nucleus
C. transmit coded information to the cytoplasm
D. turn DNA on and off
E. act as the site for protein synthesis |
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Definition
A. carry amino acids to ribosomes |
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Term
The ________ of a tRNA molecule will attract the codon of an mRNA colecule.
A. DNA sequence
B. anticodon
C. amino acid binding site
D. RNA polymerase
E. promoter site |
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Definition
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Term
In modern biochemical genetics, the flow of inherited information is from:
A. protein to RNA to DNA
B. DNA to protein to RNA
C. RNA to DNA to protein
D. DNA to RNA to protein
E. RNA to protien to DNA |
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Definition
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Term
Which of the following cannot be an enviromental mutagen?
A. organic chemicals
B. x-rays
C. gamma rays
D. UV rays
E. all are considered mutagens |
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Definition
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Term
Which series is arranged in order from largest to smallest in size?
A. chromosome, nucleus, cell, DNA, nucleotide
B. cell, nucleus, chromosome, DNA, nucleotide
C. nucleotide, chromosome, cell, DNA, nucleus
D. cell, nucleotide, nucleus, DNA, chromosome
E. DNA, nucleotide, nucleus, cell, chromosome |
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Definition
B. cell, nucleus, chromosome, DNA, nucleotide |
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Term
Nitrogen bases are held together by weak bonds called:
A. peptide bonds
B. covalent bonds
C. hydrogen bonds
D. ionic bonds
E. van der waals forces |
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Definition
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Term
What type of bonds bind the sugar and phosphate molecules?
A. peptide bonds
B. covalent bonds
C. hydrogen bonds
D. ionic bonds
E. van der waals forces |
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Definition
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Term
Amino acids are bond together to form proteins by what type of bonds?
A. peptide bonds
B. covalent bonds
C. hydrogen bonds
D. ionic bonds
E. van der waals forces |
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Definition
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Term
Match the following types of chromosomal mutations with the right sequence change.
1. abcdef ----> abcedf
2. abcdef ----> abcef
3. abcdef ----> abcd56
A. deletion
B. translocation
C. inversion |
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Definition
1. C, inversion
2. A, deletion
3. B, translocation |
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Term
Why is the genetic code called a "unviersal code"? |
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Definition
because it works with everything, every living thing contains it, and the same nitrogen bases are in all living things. |
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