interest. a. What is the trait? (1 point) widows peak b. What is the phenotype for the trait? Is this the dominant or recessive allele for the trait? (2 points) A widows peak is dominant‚ (B) c. What are the possible genotypes for the parents? (2 points) The possible genotypes would be BB or Bb d. Include the results of one Punnett square‚ showing a possible combination between alleles for the trait from the parents by filling in the genotypes according to the numbers in the square‚ below. B‚ b B‚ BB‚ Bb
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shaped oddly which results in pain because it is hard for the blood to travel throughout the body and anemia because of the lack of oxygen in the blood. A person can only have this disease if both parents are carriers and they receive two recessive alleles. There are five effects of the disease at different levels. At the DNA level the mutation causes the sequence to be coded GTG‚ CAC instead of GAG‚ CTC which results in a mutant protein. At the protein level the hemoglobin clump together which makes
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phenotypes of each generation were recorded and a chi-square test was performed. The F1 offspring were almost entirely standard form‚ and the F2 followed the Mendelian ratio of three standard to one rosette. This supported the idea that the rosette allele is recessive to the standard form‚ and that it follows Mendel’s law of segregation. INTRODUCTION The Brassica rapa is also known as a Wisconsin Fast Plant. This is because the plants complete their life cycle in approximately 35 to 45 days
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Chapter 10 Foundations of Genetics Lecture Notes 1 Foundations of Genetics Mendel and the Garden pea The father of modern Genetics is Gregor Mendel. Gregor Mendel (1822-1884) was an Austrian monk who lived in a monastery where the experiments with the garden pea were performed. Mendel’s work with the garden pea was the fundamental study which unveiled the laws that govern genetics and heredity. Mendel was the first to use the scientific method in a very systematic and analysed his results
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have homozygous alleles for blue eyes. My dad has AA and my mom has aa. While my dad has homozygous for freckles and my mom had heterozygous. My dad has no freckles so he has aa‚ while my mom has tons of freckles so she has Aa. The capitol A’s represent the dominant traits and the lower case a’s represent the recessive traits. Since my dad has homozygous dominant‚ he passed on his dominant allele to me and my brother. While my mom can either pass on a dominant or recessive allele to me and my brother
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Darker eye color genes are more dominant than lighter eye color genes. Each parent can only give one gene from each trait. The father inherited a brown eye gene and a blue eye gene. However‚ the father passed down the brown eye gene to its offspring. The mother inherited a green eye gene and a blue eye gene. Based on evidence‚ one can come to the conclusion that the mother will pass a green eye gene to the offspring. As a result‚ the offspring will have a brown a gene and a green eye gene.
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Access to Higher Education 2012/2013 Student Subject Tutor Unit: Core Biology Unit 2 Assignment Title: Genetics Internal verifier: IV sample Y/N Date Due Week Date Received Extension Agreed Y/N Resubmission Date Learning Outcome 1. Understand how genetic information is passed from parents to offspring. Assessment Criteria 1.1 Recall the main stages of meiosis and understand the biological significance of the process. ( question 5) 1.2 Understand Monohybrid and Dihybrid Mendelian Inheritance
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Problem Set – Monohybrid and Dihybrid Cross 1. Classical albinism results from a recessive allele. What is the expected offspring from a normally pigmented male with an albino father and an albino wife? 2. A pea plant with red flowers is test crossed and one half of the resulting progeny have red flowers‚ while the other half has white flowers. What is the genotype of the test crossed parent? 3. If we cross two pea plants each heterozygous for yellow seed color genes‚ what would be the
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the trait flower color (p). 3. Different versions of a gene are called ____________. 4. Why are there always two alleles present for each gene at a specific locus? 5. True or False. A dominant allele is always written with a capital letter‚ whereas the recessive allele is always written in lower-case. 6. True or False. In a sperm or egg‚ both of the two alleles on the homologous chromosomes are passed on to offspring. 7. When genes are present on the same chromosome‚ they are
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It is very important to have a large test group so the results are more proven‚ since the population is larger. E. If all yellow seedlings were removed from the population‚ would the next generation still have a chance at displaying the yellow allele? Explain. Yes‚ because one of the green seedlings may have a hidden recessive gene. F. Would a cross between a homozygous and a heterozygous parent show the same ratios? Explain. It depends if the homozygous parent is homozygous recessive or
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