Explain the relationship between a mutation, a protein, a trait, as well as dominance and recessivity of an allele. You may use the example of the taster gene
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Explain the relationship between a mutation, a protein, a trait, as well as dominance and recessivity of an allele. You may use the example of the taster gene that you examined in your practical if you wish.
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- To understand this research, you must be familiar with some basic genetic terminology. Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Not all terms will be used. dominant allele phenotype The possession of two different alleles of a particular gene is referred to as Reset Help A variation in a DNA sequence at one particular position is called a heterozygosity genotype recessive allele homozygosity single nucleotide polymorphism The appearance of the organism, its observable traits, are referred to as the A variant of a gene for which an individual must be homozygous in order for it to influence the appearance of the organism is a The set of alleles an organism has for a particular trait is the organism's Submit Request AnswerWrite a short explanatory essay on the following statement: “Incases of genetically programmed phenotypic plasticity, naturalselection acts on the norm of reaction. Thus the norm of reactionas a whole—rather than any one phenotype—determines ifselection is positive or negative.”Regarding the analysis of single marker STR results used in forensic science. Tick all the correct statements: if a suspect's alleles are identical to those collected at a crime scene, then the suspect is possibly guilty dizygotic twins can have similar alleles at an STR locus no correct statement if a suspect's alleles are different from those found at a crime scene, then the suspect is definitely innocent monozygotic twins may have different alleles at an STR locus ☐if a suspect's alleles are different from those collected at a crime scene, then the suspect is possibly innocent ☐two unrelated individuals could have a similar genetic profile monozygotic twins cannot have different alleles at an STR locus dizygotic twins cannot have similar alleles at an STR locus ☐if a suspect's alleles are identical to those collected at a crime scene, then the suspect is definitely guilty
- Briefly examine the evidence suggesting that a single gene mutation is directly related to abnormal behavior in one family.We will examine some human phenotypes that are controlled by a single gene. For each characteristic, you will determine your phenotype, possible genotype(s), and the frequency of your phenotype in the class. Tongue-rolling: a single gene with two alleles, R and r, determines a person’s ability to roll their tongue into a U shape. A person that cannot roll their tongue is homozygous recessive (rr). What is your phenotype? _____ What is your genotype(s)? _____ What is the frequency of your phenotype? (show your work) _________ Widow’s peak: a single gene with two alleles, W and w. The dominant allele (W) results in a hairline that forms a distinct point in the center of the forehead. What is your phenotype? _____ What is your genotype(s)? ____ What is the frequency of your phenotype? (show your work)Imagine that you are researcher trying to identify genes that were involved in the domestication of tomatoes. You collect the following data: Gene W variants Gene X variants Gene Y variants Gene Z variants Domestic Tomatoes W1, W3 X2, X3, X5 Y4 Z1, Z3, Z5, Z6 Wild Tomatoes W1, W2, W3 X1, X2, X3, X4, X5 Y1, Y2, Y3, Y4, Y5, Y6, Y7 Z1, Z2, Z3, Z4, Z5, Z6 Which gene was most likely a target of selection during domestication? W Y Z X
- Regarding the analysis of single marker STR results used in forensic science. Tick all the correct statements: o if a suspect's alleles are different from those collected at a crime scene, then the suspect is possibly innocent if a suspect's alleles are identical to those collected at a crime scene, then the suspect is possibly guilty two unrelated individuals could have a similar genetic profile monozygotic twins may have different alleles at an STR locus O if a suspect's alleles are identical to those collected at a crime scene, then the suspect is definitely guilty O O no correct statement O if a suspect's alleles are different from those found at a crime scene, then the suspect is definitely innocent dizygotic twins can have similar alleles at an STR locus monozygotic twins cannot have different alleles at an STR locus dizygotic twins cannot have similar alleles at an STR locus O OGene dosage is important for a number of genetic phenomenon. Name two and explain their relationship to the genotype and phenotype observed.How can mutations cause changes to the traits? Explain using the following steps:1- DNA 2- Gene 3- Protein 4- Traits We need one explanation for the normal side and one for the mutation side. Can you explain in a few sentences how the change in the structure of the gene affects the function of the corn plant?
- How can you use this piece of information to help you explain to your friends what is the significance of mutations in the emergence of new genetic properties (alleles) that may result (or not) in new phenotypic characteristics? (Recall that not all SNPs affect phenotype.)Compare conventional breeding, mutation breeding, and genetic engineering. Give at least three (3) advantages and disadvantages of conventional breeding.Explain the central dogma of biology. Explain the role of each part of the dogma in creating an organism. Make a connection to a trait that you inherited from your parents that makes you unique.