What are the sexes and eye colors of flies with the following genotypes: X R X r _____________ X R Y ____________ X r X r ____________ X R X R ____________ X r Y ___________
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Sex linked traits are those traits that are located on X chromosome.
The eye colour of fruit flies are a perfect example of sex linked inheritance.
The white eye is recessive traits located on X chromosome and red eye is dominant trait.
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- what are the genotypes of these fliesGive the sex of the following organisms, assuming that the autosomes are present in the normal number. Sex Chromosome Organism Complement Humans Drosophila XX _____ _____ XY _____ _____ XO _____ _____ XXX _____ _____ XXY _____ _____In meiosis, a __________________ cell divides to create ________________ ________________ cells that are ___________________ ___________________ the parent and each other. Meiosis is the process of _____________________ __________________
- Match the letter of the term with its description. Centriole Chromosome Chromatid Diploid DNA Gene Haploid Description makes spindle fibers is the hereditary material in chromosomes a cell containing two complete sets of chromosomes a cell containing a single set of unpaired chromosomes code for a specific trait (e.g. ability to roll the tongue) one of a pair of identical chromosomes formed by the replication of a single chromosome any of several thread-like structures, made of chromatinAnswer the questions as if you were crossing flies with a “big head” mutant trait with flies that have normal sized headsUnder normal conditions, the members of a pair of homologous chromosomes separate from each other __________________. during anaphase of meiosis I and meiosis II during anaphase of mitosis, meiosis I, and meiosis II only during anaphase of meiosis I only during anaphase of meiosis II only during anaphase of mitosis
- Draw diagrams to represent a cross of a mutant ovule/egg and a normal pollen/sperm. Also include a diagram of the zygote. Will the offsprings have the mutation? Explain your answerGive correct typing answer with explanation and conclusion A chiasma (plural chiasmata) is a site of _______________________________ on chromosomes in _________. A) crossing over; meiosis B) nonsister chromatid attachments; meiosis C) kinetochore attachment; mitosis D) chromatin condensation; mitosis21.The diagrams of meiosis above contain between 4 and 8 mistakes. Identify 4 mistakes. Explain how to fix each one. Format answer like this: mistake 1: ____________ how to fix mistake 1: ________ mistake 2: ____________ how to fix mistake 2: ________ mistake 3: ____________ how to fix mistake 3: ________ mistake 4: ____________ how to fix mistake 4: ________
- Label the different stages of meiosis using arrows (attached image)Describe the processes of meiosis I and meiosis II and make sure to mention what each of them involved the separation of (e.g., Mitosis involves the separation of _______________ and meiosis involves the separation of ________________In one paragraph, using your own words, compare and contrast the processes of mitosis (asexual reproduction) and meiosis (sexual reproduction). Be sure to include proper spelling, grammar, and punctuation.