Chapter 15: How Genes Work
5 Written Questions
5 Matching Questions
- triplet code
- knock-out allele (null allele)
- silent mutation
- messenger RNA (mRNA)
- a mutant allele with no function
- b A mutation that doesn't detectably affect the phenotype of the organism
- c distinctive appearance of all chromosomes in an organism including length, number, and banding patterns.
- d three nucleotide long codon that codes for a specific amino acid.
- e RNA molecule that carries encoded information (transcribed from DNA) that specifies an amino acid sequence for a polypeptide.
5 Multiple Choice Questions
- ordered series of chemical reactions that can either break down or build up a particular molecule.
- 3 nucleotide sequence that codes for an amino acid, or initiates/terminates protein synthesis
- mutation where a segment of a chromosome breaks off from the rest of the chromosome, flips and joins the chromosome in the opposite orientation.
- an enzyme of retroviruses (RNA viruses) that can synthesize double stranded DNA from a single strand of RNA template.
- when information encoded in genes are formed into an active product such as proteins
5 True/False Questions
start codon → 3 nucleotide sequence that codes for an amino acid, or initiates/terminates protein synthesis
deleterious → any muttation or allele that reduces an individual's fitness.
translocation → process by which proteins and peptides are made from mRNA.
translation → process by which ribosome moves down an mRNA molecules during translation
central dogma → referring to any mutation that has no effect on an individual's fitness.