Onion Genetics Part 1. We will begin by looking at onion color. Let's arbitrarily assign the letter "R" for color and say red onions are dominant (R) and white onions are recessive (r). Cross an individual who is heterozygous with an individual who is homozygous recessive. 1. What is the genotype of the heterozygous individual? 2. What is the genotype of the homozygous recessive individual? Complete the Punnett square using the alleles you just listed. 3. What are the resulting genotypes and their ratios or %? 4. What are the resulting phenotypes and their ratios or %?

Onion Genetics Part 1. We will begin by looking at onion color. Let's arbitrarily assign the letter "R" for color and say red onions are dominant (R) and white onions are recessive (r). Cross an individual who is heterozygous with an individual who is homozygous recessive. 1. What is the genotype of the heterozygous individual? 2. What is the genotype of the homozygous recessive individual? Complete the Punnett square using the alleles you just listed. 3. What are the resulting genotypes and their ratios or %? 4. What are the resulting phenotypes and their ratios or %?

Name: Genetics I LAB 11Onion GeneticsPart 1. We will begin by looking at on
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Description: Genetics I LAB 11Onion GeneticsPart 1. We will begin by looking at onion color. Let's arbitrarily assign the letter "R" for color andsay red onions are dominant (R) and white onions are recessive (r).Cross an individual who is heterozygous with an i

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter13: Genes, Chromosomes, And Human Genetics

Section: Chapter Questions

Problem 3TYK: Individuals affected by a condition known as polydactyly have extra fingers or toes. The following...

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Having malformed hands with shortened fingers is a dominant trait controlled by a single gene; people who are homozygous for the recessive allele have normal hands and fingers. Having woolly hair is a dominant trait controlled by a different gene; homozygous recessive individuals have normal, nonwoolly hair. Suppose a woman with normal hands and nonwoolly hair marries a man who has malformed hands and woolly hair. Their first child has normal hands and nonwoolly hair. What are the genotypes of the mother, the father, and the child? If this couple has a second child, what is the probability that it will have normal hands and woolly hair?
In cats, the genotype AA produces tabby fur color; Aa is also a tabby, and aa is black. Another gene at a different locus is epistatic to the gene for fur color. When present in its dominant W form (WW or Ww), this gene blocks the formation of fur color and all the offspring are white; ww individuals develop normal fur color. What fur colors, and in what proportions, would you expect from the cross AaWw Aa Ww?
Individuals affected by a condition known as polydactyly have extra fingers or toes. The following pedigree shows the pattern of inheritance of this trait in one family: From the pedigree, can you tell if polydactyly comes from a dominant or recessive allele? Is the trait sex-linked? As far as you can determine, what is the genotype of each person in the pedigree with respect to the trait?
Part 1: Mendelian Genetics 1. For each of the genotypes Purple Flowers are Dominant to white flowers PP - Purple Pp - Purple pp-White Straight hair is dominant to curly hair below, list all possible phenotypes. Brown eyes are dominant to blue eyes Straight - HH, Hh Curly - hh BB- Bb bb- 2. For each of the phenotypes below, list all possible genotypes. (Remember: use only 1 letter to designate a trait, big and small per scenario) Pointed heads are dominant to round heads Black fur is dominant to white fur Pointed - Round - FF - Ff- ff - Jagged leaves are dominant to smooth leaves Jagged - Smooth -
5 The pedigree shown below is from a family with albinism. Albinism is a genetic condition that occurs when the body is unable to make or distribute melanin, a pigment that gives color to skin, hair, and the iris of the eye. The pedigree shown below is from a family with albinism. Analyze the pedigree to determine whether albinism is inherited in a dominant or recessive fashion, and then apply the correct genotypes to individuals 1-1, 1-2, II-2, and II-5. = 11 ||| 1 aa 1 2 3 Aa 1 3 2 4 6 A_ 7 5 8 6 9 AA 10 по по Aa male female affected individual
Need help with Punnet Squares. 1.pku is an auto recessive disorder that can ultimately lead to brain damage. People who are heterozygous are healthy even though they carry the alle. If a women is a heterozygous carrier and a man who has the trait has a child, what are the chances that teh child would have PKU? what is the inheritance pattern?
1. What are some of the medical applications of karyotyping? GENETICS syndrome? Down syndrome? 2. What kind of chromosomal aberration is exhibited by individuals with cri-du-chat V. Questions: tet are some of the medical applications of karyotyping? 1. 3. What are other types of chromosomal aberrations? List examples for each type. 4. For a couple, what is the significance of knowing chromosomal aberrations? What environmental factors may increase incidence of chromosomal abnormalities? Name at least three.
Part 2: Non-Mendelian Genetics 6. For each of the genotypes below, list all possible phenotypes. Purple Flowers are dominant white flowers are recessive and heterozygous flowers are lavender. PP- Pp- pp Brown eyes are dominant, blue eyes are recessive, and heterozygous eyes are green. BB- Bb - bb- Black fur is dominant, white fur is recessive, and heterozygous fur is grey. FF - Ff- ff - 7. A woman with type A blood has a child with a man with type AB blood. Show ALL the possible crosses the child may have.
1 pts The pedigree below shows the expression of Huntington's disease in a family. Huntington's disease is a fatal genetic disorder that causes the progressive breakdown of nerve cells in the brain. It deteriorates a person's physical and mental abilities usually during their prime working years and has no cure. Huntington's is inherited as a dominant allele (H). Examine the pedigree below and determine the genotype for individual "2" DODO0O 2. O HH O Hh О h O either HH or Hh
4. In humans, cystic fibrosis and albinism are both inherited as independently assorting autosomal recessive traits. Use fto represent the recessive allele for cystic fibrosis and Ffor the allele for the unaffected condition. Use A to represent the dominant allele for normal melanin man is albino and heterozygous for cystic fibrosis. His wife has the unaffected phenotype for both traits, although her father had cystic fibrosis and a for the recessive allele for albinism. and her mother is albino. 4a. What is the genotype of the wife? 4b. What is the probability that a child of this couple is albino and has cystic fibrosis?
ng -Courses iblic/activ 003004/a s sment al V T-Rex Game. un in to your acc. L 1.3.4 Quiz: Predicting Genetic Outcomes Question 1 of 10 Mendel used over 28,000 pea plants in his experiment. How does this large sample size make his results more reliable? O A. He was not sure which of the plants were female and which were male. B. Most of the plants were unable to reproduce, so he needed many of them. C. He used more plants so the experiment wouldn't take as long. D. It made his actual results approach the results predicted by probability. SUBMIT E PREVIOUS
Part 2. Do one more example of a monohybrid cross. This time assign the letter "B" for onion taste. Being sweet is dominant controlled by allele (B) and being bitter is recessive-controlled by allele (b). Cross individuals who are both heterozygous for this trait. 5. What is the genotype of each of these heterozygous individuals? 6. What is the phenotype of these heterozygous individuals? Complete the Punnett square below using the alleles you just listed. 7. What are the resulting genotypes and their ratios or %? 8. What are the resulting phenotypes and their ratios or %? Figure 3. Monohybrid Cross for Onion Taste. 103