2.5.5 + 2.5.15 Genetics 2 FMQuiz Homework Solution
Q. The bases in DNA form a triplet code. What is
meant by a triplet code?
A. A sequence of three bases that code for one
amino acid
Q. The triplet code is transcribed into mRNA. What
does this statement mean?
A. Information (code) is copied to RNA molecule
Q. To which structures in the cell does mRNA carry
the code?
A. Ribosome
Q. In which structures in the cell does translation
occur?
A. Ribosomes
Q. What does the letter ‘t’ stand for in tRNA?
A. Transfer
Q. Give the role of the enzyme RNA polymerase.
A. Joins nucleotides together to make mRNA
Q. Where in the cell would you expect to find most
DNA?
A. Nucleus or Chromosome or Gene
Q. DNA contains the instructions needed to make
protein. These instructions are called the … code.
A. Gene or Genetic
Q. Where in a cell are enzymes produced?
A. Ribosomes
Q. Explain the term Transcription in relation to
DNA.
A. Complimentary RNA production
Q. What must happen to the newly formed protein
before it can begin to work?
A. It must fold into its functional shape
Q. During translation one end of a tRNA molecule
attaches to an mRNA codon. What is attached to
the other end of the tRNA molecule?
A. An amino acid
Q. Give two applications (uses) of DNA profiling.
A. Crime (forensic) or Medicine or Paternity or
Archaeology or Evolution
Q. What is meant by non-coding DNA?
A. Does not code for a protein or for RNA
Q. What is meant by genetic screening?
A. Checking for the presence of a specific gene
Q. Give one structural difference between DNA and
RNA.
A. DNA contains thymine or RNA contains uracil
Q. In DNA profiling DNA strands are cut into
fragments. On what basis are these fragments then
separated?
A. Size or Use of gel electrophoresis
Q. True or False. The base Uracil is found in DNA.
A. FALSE
Q. True or False. DNA is a double helical shape.
A. TRUE
Q. Where in a cell does transcription occur?
A. Nucleus
Q. Name the small biomolecules that are joined
together to make a protein.
A. Amino acids
Q. Each mRNA codon specifies one of three
possible outcomes during protein synthesis. Name
these three possible outcomes.
A. Start; Adding an amino acid; Stop
Q. Explain the term Replication in relation to DNA.
A. Making a copy
Q. In DNA profiling, what are used to cut DNA
strands into fragments?
A. Enzymes
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