The DNA diversity of maize is not the same as the DNA diversity of teosinte. Is maize DNA diversity higher or lower than teosinte? Explain two reasons for why this is the case.
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- the difference between the model of the white-eyedfly’s DNA sequence and the model of the red-eyed fly’s DNA sequence?A. What is the wild progenitor of maize and where is it found? B. George Beadle concluded that this plant was the likely ancestor of maize (corn) even though the two plants appear very different. What evidence did Dr. Beadle collect that led to his conclusion? C. How long ago was maize domesticated and what evidence was utilized to determine this? D. Dr. Doebley and his team compared the DNA sequence of maize to that of a number of teosinte varieties from throughout Mexico. What did their analysis reveal?Based on one strand of a certain segment of DNA with the sequence below, answer the following question: 3'-ATGGATCCCATC-5' a. What are some causes of phenotypic variation within a species?
- A. Dr. Doebley and his team compared the DNA sequence of maize to that of a number of teosinte varieties from throughout Mexico. What did their analysis reveal? B. Teosinte looks like a terrible plant to begin to domesticate for agricultural purposes. What hypothesis is put forth to explain farmers’ early interest in the plant?Similarities in ___________ are the basis of similarities in traits. a. karyotype c. the double helix b. DNA sequence d. chromosome numberSuppose that you sample the DNA of two mushrooms on opposite sides of your yard and find that they are identical. Propose two hypotheses that could reasonably account for this result.
- n the pedigree below, the letters in each symbol represent the genotype of the individual for a specific gene. Use the pedigree to answer the following questions about the tamarin family.Explain why we use both Giemsa and DAPI when studying human genetics, and not just one or the other. How are they similar, and how are they different?You have four sequences from A-D representing four species: A: AAATTGATTAC B: TAATTGGTTAC C: AAATTGGTTGA D: AAATTGATTGA A is your outgroup. Take a piece of paper and illustrate the three possible trees that are different from each other. 1) Answer the question of why there are only three trees. Aren't there more trees possible? 2) Mark the changes in nucleotides that happen among the four species on the trees or write them down separately. Then calculate the shortest possible tree. This is the most parsimonious option. Which one is it? 3) Why does this tree not necessarily depict the true relationship among the four species? Illustrate and answer all questions on paper. Then take a picture of the paper with your cell phone. Make sure everything is in focus, i.e., go over the picture and take it again, if necessary. All your answers and the trees need to be clearly visible.