What is monohybridism, Data pertaining leprosy from india

What is monohybridism

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Assignment:

Case study; Leprosy is caused by Mycobacterium leprae and has been known since biblical times. It is still endemic in many regions of the world and a public health problem in Brazil. The prevalence rate in 2011 reached 1.54 cases per 10,000 inhabitants in Brazil. The mechanism of transmission of leprosy consists of prolonged close contact between susceptible and genetically predisposed individuals and untreated multibacillary patients. Transmission occurs through inhalation of bacilli present in upper airway secretion. The nasal mucosa is the main entry or exit route of M. leprae.

1. Document the spread of leprosy across multiple continents before the 20th century

2. Data pertaining leprosy from india is treated with caution bcause?

3. What is hybridization in genetics?

4. What is monohybridism?

5. Considering hybridization in a trait such as the color of the flowers of a given plant species (red dominant/ yellow recessive) conditioned by a pair of different alleles, what are the phenotypical results of the first generation (F1) and the phenotypical results of the second generation (F2, formed by crossing between F1 genotypes)? What are the proportions of phenotypes in F1 and F2?

6. Considering hybridization in a trait such as the color of the flowers of a given plant species (red/yellow) conditioned by a pair of different alleles in relation to complete dominance (red dominant/yellow recessive), why is one of the colors missing in the F1 generation?

7. Considering hybridization in a given trait such as the hair color of a mammalian species (white/black) conditioned by a pair of different alleles under complete dominance (black dominant, B/ white recessive, w), how can the phenotypical proportion obtained in the F2 generation be explained? What is this proportion?

8. What is meant by saying that the gametes are always "pure" when referring to a given trait conditioned by a gene with two different alleles?

9. What is Mendel's First Law?

10. What type of gamete (for a given trait) is produced by a dominant homozygous individual? What is the genotypical proportion of these gametes? What about a recessive homozygous individual?

11. Which type of gamete is produced by a heterozygous individual? What is the genotypic proportion of these gametes?

Reference no: EM133867042

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