WGU C653 Heredity and Genetics exam 2023 with 100% correct answers

A change occurs in one nucleotide of a triplet within a protein-coding portion of a gene. This change results in a new triplet that codes for a stop codon. What is this mutation called? Nonsense mutation A point mutation occurs in which a single nucleotide change results in a codon that codes for a different amino acid. What is this mutation called? Missense mutation A single nucleotide is changed. What is this mutation called? Point mutation A point mutation occurs in which a single nucleotide change results in a codon that codes for the same amino acid. What is this mutation called? Sense mutation Which type of mutation is commonly linked to DNA breakage? Radiation exposure Which type of mutation can cause nucleotide substitutions, change the number of nucleotides, or structurally change the nucleotides? Chemical modification How many chromosomes are present in a trisomal karyotype of somatic cells if the gamete cells of a diploid organism have 23 chromosomes? 47 How many chromosomes are present in a triploidal karyotype of somatic cells if the gamete cells of a diploid organism have 23 chromosomes? 69