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Q: What does the sex chromosome genotype OY produce in drosophilia?
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Q: What does the sex chromosome genotype XX produce in drosophilia?
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Q: What does the sex chromosome genotype XYY produce in drosophilia?
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What does the sex chromosome genotype XO produce in drosophilia?
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- What does the sex chromosome genotype OY produce in drosophilia?What does the sex chromosome genotype XXY produce in drosophilia?Consider a Droscophilia fly with a genotype of Nn XqYY. The dominant allele of the sex-linked gene specifies a black body and the recessive a white body. The recessive autosomal allele specifies hairy bristles while the dominant allele specifies smooth bristles. i)What is the ploidy of this fly? ii) What would the sex of this fly be? iii)What would the phenotype of this fly be with respect to these two loci?
- What is a sex pilus and which cell type, F- or F+,would produce this structure?Name the disorder with the following chromosome complement.(i) 22 pairs of autosomes + X X Y(ii) 22 pairs of autosomes + 21st chromosome + XYAn individual heterozygous for a reciprocal translocation possesses the following chromosomes: A B • C D E F G A B • C D V W X R S • T U E F G R S • T U V W X Q. Draw the pairing arrangement of these chromosomes in prophase I of meiosis.
- Which is the type ofgamete produced by aheterozygous individual?What is the genotypicalproportion of these gametes?what is the significance of chromosomal aberration? what are the different types of chromosomal abberations based on the structure and number of chromosomes? give examples for each. what environmental factors may increase in the incidence of chromosomal aberrations?How does prohpahse in mitosis differ from prohpahse 1 in meiosis? What genetic advantage does prohpahse 1 in meiosis offer that prohpahse in mitosis does not offer
- If nondisjunction occurs in humans for one pair of homologous chromosomes during meiosis I. The other pairs segregate normally. a) Will any normal gametes result? b) How many chromosomes will each human gamete have? If nondisjunction occurs in humans for sister chromatids during meiosis II. The other pairs segregate normally. a) Will any normal gametes result? b) How many chromosomes will each human gamete have?An individual is heterozygous for a reciprocal translocation, with the following chromosomes: A • B C D E F A • B C V W X R ST • U D E F R ST • U V W X Q. Draw a picture of these chromosomes pairing in prophase I of meiosis.13) Use the image below of the X and Y sex chromosomes of a human to answer the following question. Which of the following statements is true? A) This person is a female with Haemophilia. B) This person is a male with Ocular Albinism. C) This person is a female with Ocular Albinism. D) This person is a male with no sex linked genetic disorders. X Ocular albinism Duchenne muscular dystrophy Androgen insensitivity Severe combined immunodeficiency Haemophilia Colour blindness Y DOLD SRY Sex determination AZF Sperm development
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