Review Assignment - Incomplete & Mutations

Master gene mutations & inheritance! Practice Punnett squares for codominance/incomplete dominance. High school biology review.

Matching Match the term with the correct description. Chromosomal Mutation A change in the number or structure of a single chromosome or whole sets of chromosomes Translocation Chromosome pieces are moved onto another chromosomes Inversion Chromosome segment is inserted in reverse order Deletion Part of a chromosome is removed Gene mutations Match each term to the correct description Insertion One or more nucleotides are added to a gene Frameshift mutation The addition or deletion of one or more nucleotides that changes the number of complete codons Point mutation A change in one nucleotide that does not change the overall number of bases Deletion One or more nucleotides are removed from the gene Substitution One nucleotide is switched for another Fill in the blanks with the term(s) that makes the statement correct. 1. A gene mutation is a change in one or more nucleotide basesof DNA.3. A pointmutation is when 1 nucleotide base in DNA is changed.4. A deletionmutation is when a nucleotide base is lost.5. An insertionmutation is when an extra nucleotide base is added.6. Both deletion and insertion mutations may cause what is called a frameshiftbecause the sequence of bases change.7. A substitutionmutation occurs when one nucleotide base is replaced with another. For this DNA sequence ATA-ACG-CCT-ATT, what is the complementary DNA sequence? (Include the dashes and capitalize the letters)TAT-TGC-GGA-TAA If the "G" was deleted in this DNA sequence: ATA-ACG-CCT-ATT, what type of mutation would occur? Frameshift mutation Point mutation Using the following DNA sequence, determine the type of mutation that has occurred with the new sequence: TAC ACC TTG GCG ACG ACT Deletion TAC ACC TTG GCG ACG AC Insertion TAC ACC TTG GCG ACG ACT T Substitution TAC ATC TTG GCG ACG ACT Codominance There are three different colors of fish in Timmy's aquarium: red (RR), blue (BB), and red and blue. A red fish mates with a blue fish. Complete a Punnett Square to show this cross. Do not type in this box B B R RB RB R RB RB (Codominance) What is the percentage of offspring that would be blue? 0% 25% 50% 75% 100% (Codominance) What is the percentage of offspring that would be red? 0% 25% 50% 75% 100% Incomplete Dominance In human genetics, there are traits for curly hair (CC), straight hair (SS), and wavy hair. A wavy haired man marries a straight haired woman. Complete a Punnett Square to show this cross. Do not type in this box S S C CS CS S SS SS (Incomplete Dominance) What is the percentage of offspring that would have straight hair? 0% 25% 50% 75% 100% (Incomplete Dominance) What is the percentage of offspring that would have curly hair? 0% 25% 50% 75% 100% What is the DNA component that consists of a sugar, phosphate, and a base? nucleoside nucleotide hydrogen codon