The Relationship between the Genotype and Phenotype of Drosophila melanogaster Eye Pigment Mariam Rahmanyar 100486882 T.A: Zahra Mortaji BIOL 2020 Results: Our TLC plate showed all colours expressed by the pteridine pigments for the wild-type Drosophila as expected (Figure 1). The sample A mutant which was a bright-red eye mutant also expressed the same pigments as our wild-type. Compared to the wild type‚ sample A pigment spots were lower intensity in colour under the UV
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the three kinds of genotype-environmental effects Scarr and McCartney assume and give an example of each. In a Passive genotype-environmental effect‚ the genetically related parents provide a rearing environment that is correlated with the genotype (genetic makeup of an organism) of the child. A child’s environment is correlated with their genes‚ which correlate with their parents’ genes because he or she is making decisions likely from their own preferences. Passive genotype-environmental effects
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about what a genotype is‚ what a phenotype is and how they can interact. Did you know that the composition of living organisms can be defined by two distinct parts – Phenotype and Genotype? In 1908‚ Wilhelm Johannsen introduced the distinction between genotype and phenotype upon realizing that the hereditary and developmental pathways were causally separate (Stanford University‚ 2011). While Phenotype and Genotype are depicted uniquely separate‚ they can interact. DEFINE GENOTYPE The first part
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Q1.Some genetic disorders are caused by alleles inherited from the parents. (a) What are alleles? ........................................................................................................................ ........................................................................................................................ (1) (b) Describe how embryos can be screened for the alleles that cause genetic disorders. ..........................................................
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shows the occurrence of sickle cell anaemia within one family. Figure 1 A pedigree diagram showing the occurrence of sickle cell anaemia within one family. a Look at the family tree in Figure 1 above and using suitable symbols suggest what the genotype of individual 6 might be. Give a reason for your answer. Unaffected female b If individuals 7 and 8 have children‚ state what proportion of their children would be expected to be carriers of the sickle cell anaemia allele. 3/4 Q3 Huntington’s
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containing only one copy of each gene. h. dominant 8. The allele that does not contribute to the phenotype of the heterozygote. i. F1 9. The cross of an individual of ambiguous genotype with a homozygous recessive individual j. test cross 10. An individual with two different alleles of the same gene. k. genotype 11. The heritable entity that determines a characteristic. l. recessive 12. The alleles an individual has. m. dihybrid cross 13. The separation of the two alleles of a
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traits (Y/y is color of kernel color‚ S/s is for smooth/wrinkled seed). Yellow: (Y) vs. Blue (y). Green (G) vs. Red (g). Without looking pull 2 beads out of Beaker 1. This will be the genotype for the parents of Individual Number 1 for the upcoming generation. Record your results for this in “Table 1: Parent Genotypes: Monohybrid Crosses”. Now repeat this procedure for Individual Number 2 and record the results. Repeat
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Formation 1. What are the gamete combinations that can be produced by the following individuals? a. AABB- AB b. AaBB- AB and aB c. AAABBcc- ABc d. AAbbCc- AbC and Abc e. AaBbCc- ABC‚ ABc‚ AbC‚ Abc‚ aBC‚ aBc‚ abC and abc 2. What are the possible genotypes of the offspring from mating of the following individuals? (the x refers to the mating. In the first‚ you would place EE along the top and ee on the side or vice versa). a. EE x ee E E e Ee Ee e Ee Ee b. Ee x Ee E e E EE Ee e
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rapa Abstract The foundation of genetics lies with the principles that Gregor Mendel outlined after his experiments with pea plants where he discovered the relationship between physical characteristics‚ or phenotype‚ and genetic traits‚ or genotype. This experiment aimed to reproduce Mendel’s results with the Brassica rapa plant‚ noted for it’s fast generation time‚ and anthocyanin‚ a purple pigment that can be visually tracked through subsequent generations. It is important for experiments
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Name: Mohammed Alghamdi BIOL lab II 1-A cross gives a 3:1 phenotypic ratio. What are the genotypes of the parents? 3:1. (heterozygous parents) 2- According to Mendel’s law of segregation‚ parents who both have the genotype Aa would produce what gametes? A germ cell Aa undergoes meiosis 3-What is the genotype of a plant that produces green peas? Yellow peas are dominant. Yy or yy when crossed with a heterozygote (Yy) will give some offspring that are green 4- To determine whether an animal with
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