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- Use Punnett Square:The letter that accompanies each trait is representative of the dominant allele. This is the letter you will use when recording the genotypic information for each trait.Read through the descriptions of each trait and determine which phenotype you express. Record your phenotypeNext, determine your genotype. If you express the dominant phenotype, you cannot determine the second allele you carry, so you must list the two possible genotypes. Record this. Question: Eye color (B): Inheritance of eye color is controlled by multiple genes, but people having the homozygous recessive genotype have blue eyes. People who have a dominant allele may have different shades of brown, hazel, or green eyes.Do a punnet square to find the possible genotypes and phenotypes of the F1 generation when a plant that is homozygous recessive for pod color and heterozygous for pea shape is crossed with a plant that is heterozygous for pod color and homozygous dominant for pea shape. Dominant for pod color = G (green) Recessive for pod color = g (yellow) Dominant for pea shape = R (round) Recessive for pea shape = r (wrinkled) P1: GG X Rr Gg X RRWhich of the following traits are complete dominance, incomplete dominance, X-linked, or sex-linked? Tongue Rolling (R or r) Cleft Chin (V or v)Dimpled Cheeks (G or g)Widow's Peak (W or w) Lobed Ears (L or l)Hair Form (C or C') Red Hair (T or t)Dominant Eye (E or e)Index vs. Ring Finger (F or F')Hitchhiker's Thumb (N or n)Arm Folding (A or a)
- In some bizarre-feathered chickens, F is the trait for frizzled feathers while S is the trait for straight feathers. Since both traits are appears to be dominant, what proportion of the offspring would likely show straight feathers? Construct the punnet square and indentify the following: Parents’ genes? Parents’ traits? Genes (genotype)? Feather type? (phenotype)? Genotypic ratio? Phenotypic ratio?Which example correctly reflects co-dominance and incomplete dominance? A Codominance - blood type A, in a person carrying allele A and allele O, and A is dominant to O; only antigen A is expressed on red blood cell surface of people with IAi genotype.Incomplete dominance - red and white flower color inheritance of snapdragons, where the heterozygotes show both, red and white phenotype simultaneously (patchy appearance of the flower petals). B Codominance - blood type AB, where antigen A is dominant to B; only antigen A is expressed on red blood cell surface of people with IAIB genotype.Incomplete dominance - red and white flower color inheritance of snapdragons, where the heterozygotes show red phenotype. C Codominance - blood type AB, where antigen B is dominant to A; only antigen B is expressed on red blood cell surface of people with IAIB genotype.Incomplete dominance - red and white flower color inheritance of snapdragons, where the heterozygotes show white phenotype.…Tall is dominant, T, to short, t. Light skin is dominant, L, to dark skin, l. A homozygous for tall and dark skin male conceives with a short and heterozygous for light skin female. Calculate the genotypic and phenotypic ratios of the offspring
- Like brown eyes, presence of dimples and cleft chin are dominant traits. Sarah has brown eyes and dimples, but no cleft chin. Her father has blue eyes but no dimples. She just married James who has blue eyes, dimples, and cleft chin. His mother has no cleft chin and his father has no dimples. What is the probability that Sarah and James will have a baby girl with blue eyes and dimples? What is the probability that they will have a baby boy with brown eyes and cleft chin?In a species of dog, plaid color is represented by P and purple by p, short -tailed is T and long-tailed is t. What are the genotypes of a male who is purple with a long tail, and a female who is homozygous dominant for both traits? Which answer below is true? PpTT & PPTT pptt & PPTT short-tailed purple & long tailed plaid male: purple w/ long tail & female: plaid w/ short tailGiven the parents AaBb x Aabb, assume simple dominance for each trait. What proportion of the offspring will be expected to phenotypically resemble the first parent? 1/4 1/8 3/4 3/8 1
- Use Punnett Square: The letter that accompanies each trait is representative of the dominant allele. This is the letter you will use when recording the genotypic information for each trait. Read through the descriptions of each trait and determine which phenotype you express. Record your phenotype Next, determine your genotype. If you express the dominant phenotype, you cannot determine the second allele you carry, so you must list the two possible genotypes. Record this. Question Ear lobes (E): Free ear lobes have at least one dominant allele. People with attached earlobes are recessive.In cows, there is a "splotchy" phenotype that is splotches of brown and white. A true-breeding white cow (homozygous recessive) is bred to a true-breeding brown cow (homozygous dominant). In the resulting offspring, 75% have spots of brown and white and 25% are brown. The phenotype described displays what kind of relationship(s) between alleles? Incomplete penetrance Incomplete penetrance Variable expressivity Variable expressivity Incomplete dominance Incomplete dominance CodominanceBrown hair, H, is dominant to blonde hair, h. A male homozygous for brown hair conceives with a female with blonde hair. Calculate the genotypic and phenotypic ratios of the offspring. (Show all 5 steps)