Chapter 4 (Genetics and cellular function) review questions-Name: __________________________________________________________; Score: __________
1. Complete the following table (Table 4.1 comparison of DNA and RNA).
Table 4.1
DNA
Sugar
Site of action
RNA
Ribose
In Nucleus
Major function
2. A nucleotide consists of three components: a _______________, a __________________________,
and a nitrogenous base.
Questions 3-7 (Matching): Match the following terms to their respective statement below.
A. Gene
B. Genome
C. Genetic code
D. Base triplet
E. Codon
3. _________ All the DNA, both coding and noncoding, in one 23-chromosome set
4. _________ A system that enables 4 nucleotides (A, T, C, G) to code for the amino acid sequences of
all proteins
5. _________ A sequence of 3 DNA nucleotides that stands for 1 amino acid
6. _________ An information-containing segment of DNA that codes for the production of a molecule
of RNA
7. _________ A 3-base sequence in mRNA is called
8. The initiating transfer RNA, carrying formylmethionine, binds to which site?
A) E site
B) P site
C) A site
D) E, P, and A sites
E) P and A sites
9. The anticodon is the three base sequences on the messenger RNA that binds with the codons of the
transfer RNA. The above statement is _______.
A) True
B) False