Heritability is a complex concept and answering questions regarding it requires a precise understanding of its definition. Before attempting to answer the question prompt provided above, refresh your knowledge of the definition of heritability and select the answer that best matches the information from your notes. Consider specific examples we discussed in class to help you eliminate incorrect answers. Heritability describes the proportion of phenotypic variation explained by underlying genotypic differences among individuals in a population. Heritability explains the percent of variation in an individual's phenotypic that is due to their genetics vs. their environment. Heritability for a given phenotypic characteristic is constant for all populations of a species. Two of the above are correct.
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- For this question, study the dihybrid Punnett Square below, and fill in the missing information, and then answer the following questions: (again case matters when writing the allele letters!) 1. Do color and kernel texture follow Mendel's Law of Segregation? Yes or No 2. What alleles are represented in site A: 3. What alleles are represented in site B: 4. What alleles are represented in square C: 5. What alleles are represented in square D: 6. What percentage of kernels express both dominant phenotypes (round the number)? Parent 1: CcTt CT Ct CT B CT CCTT CCTt CCTT CcTt Ct CCtT CCtt CctT C Parent 2: CcTt A CCTT CCTt CCTT ccTt ct cCtT D ccTt cctt MacBook Air SAFor each genotype, indicate the phenotype: The freckles allele (F) is dominant to the no freckles allele ( f). The attached earlobes allele (E) is dominant to the unattached earlobes allele (e). ff _______________ Ee _______________ FF _______________ EE _______________ Ff _______________ ee _______________Now having this chart can you answer these questions? Codominance pattern of inheritance: Two equally dominant alleles (IA and IB) and one recessive (i)Fill in the chart with the missing information. Remember, blood genotypes are indicated with IA IB and i alleles.#1. a. Write down all of the possible genotypes possible for human blood type. How many?Write the genotype for each person, based on description. You’ll fill in some of this data in the Submission file.Homozygous for Type B blood _________ Heterozygous for Type A blood ________Type O Blood ___________ Type A blood and has a parent with Type O ________ Type AB Blood __________ Blood can be given to anyone _________Heterozygous for Type B blood _________ Homozygous for Type A blood ________Can only receive blood from a Type O donor ___________
- The identity of Kim's biological father is unknown, but it is thought to be either Kevin or Thomas. To determine which of the two men it is, blood typing of all the persons involved was performed. Here are the results of the blood tests, including the phenotypes and possible genotypes of each person: Rachel (mother) Type AB; genotype IA, IB Kim (child) Type A; genotype is either IA, IA (if homozygous) or IA, i (if heterozygous) Kevin (alleged father #1) Type A; genotype is either IA,IA if homozygous or IA, i if heterozygous Thomas (alleged father #2) Type O; genotype is ii There are 2 DNA bands in the "fingerprint" of each person tested: mother, child, alleged father 1, and alleged father 2. Why are there two bands for each person and not three?The alleles for Blood type O can be represented by: "00". (Two capital Os) Which of the following is the correct way to describe this genotype? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. Homozygous dominant a b Homozygous recessive Heterozygous dominant d Heterozygous recessiveon Instructions: Before Mendel and his results were fully accepted, there were many theories that were proposed that tried to explain how traits were passed on from one generation to another. In the space provided, list down the important points of each theory. Hippocrates’: Brick and Mortar Theory ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ________________________________________________ Aristotle: Hereditary Elements in Blood…
- Height is a polygenic trait. These students in a genetics class lined up, with shorter individuals on the left of the photo and taller individuals on the right, display a classic bell-shaped distribution. © McGraw-Hill Education/Photo by David Hyde and Wayne FaldaWhat part of this punnett square represents Mendel's Law of Segregation? what part represents Mendel's Law of Independent Assortment? Explain your reasoning for each. Write your answer in your own words. Gametes AB Ab aB aB AB Ab ab AB AABB AABb AaBB AaBb ab Ab AABb AAbb AaBb Aabb aB AaBB AaBb aaBB ab AaBb Aabb aaBb aaBb aabbThe 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 the trait and determine which phenotype you express. Record your phenotype. Next, determine the 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 down Question: Widow’s Peak (W): A hairline that forms a downward point in the middle of the forehead is caused by a dominant allele. A smooth hairline is caused by a recessive genotype.
- 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 the trait and determine which phenotype you express. Record your phenotype. Next, determine the 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 down Question: Tongue roller (T): A dominant allele gives some people the ability to roll their tongues into a “U” shape when it is extended. People with the recessive alleles cannot roll their tongues.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 the trait and determine which phenotype you express. Record your phenotype. Next, determine the 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 down Question: Mid-Digital Hair (H): Individuals who have hair on the middle joints of their fingers have at least one dominant allele. Those with two recessive alleles do not have hair on the joint.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 the trait and determine which phenotype you express. Record your phenotype. Next, determine the 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 down 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.