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Chapter 6, Problem 3CYR

Explain the differences between red bone marrow and yellow bone marrow.

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Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…
Question #5: Assume that two genes are identified that confer gametophytic facultative apomixis in soybean. The genes show independent assortment. Recessive alleles at both loci are required for the facultative apomixis. Facultative apomixis is triggered when the temperature at pollination is above 20 degrees C. At temperatures below 20 degrees C, all reproduction is sexual, independent of genotype. A facultative apomict male, capable of producing viable pollen, was crossed with a sexually reproducing female. Assuming the parents are completely inbred, what are the predicted phenotypic ratios (apomict: non-apomict) for the F1, F2, and DH (F1-derived) generations at each of the following temperatures*: a) 15°C? b) 25°C? *for full credit, show crosses and genotypes where appropriate. Remember to position the female first (left side) in the cross. Type your answer here:

Chapter 6 Solutions

Human Anatomy & Physiology, Modified Mastering A&P with eText and Value Pack Access Card and Practicing A&P Workbook for Human Anatomy & Physiology

Ch. 6.3 - For each type of ossification: a. Does spongy bone...Ch. 6.3 - 5. Which type of ossification: a. involves a bone...Ch. 6.4 - What tissue type makes up the epiphyseal plate?Ch. 6.4 - How does bone grow in length from the epiphyseal...Ch. 6.4 - Prob. 3QCCh. 6.4 - Prob. 4QCCh. 6.4 - How is bone growth affected by the sex hormones...Ch. 6.5 - How do bone resorption and bone deposition differ?Ch. 6.5 - Explain how compression, continuous pressure on a...Ch. 6.5 - What role does parathyroid hormone play in calcium...Ch. 6.5 - 4. Walk through the basic steps of fracture...Ch. 6 - Which of the following is not a function of the...Ch. 6 - Match the following terms with the correct...Ch. 6 - Explain the differences between red bone marrow...Ch. 6 - 4. Mark the following statements about bone...Ch. 6 - Prob. 5CYRCh. 6 - 6. The branching pieces of bone in spongy bone...Ch. 6 - 7. Which bones form via intramembranous...Ch. 6 - Of the following statements, identify those that...Ch. 6 - What is the difference between a primary and...Ch. 6 - 10. The part of the epiphysis that does not...Ch. 6 - Long bones grow in length from the: a. diaphyseal...Ch. 6 - 12. Correctly order the following steps of bone...Ch. 6 - Explain the effect that the following hormones...Ch. 6 - Fill in the blanks. Bone deposition is carried out...Ch. 6 - Mark the following statements as true or false. If...Ch. 6 - 16. Which of the following influences bone...Ch. 6 - Correctly order the following steps of fracture...Ch. 6 - 1. Explain why a person who is wheelchair-bound or...Ch. 6 - 2. How could diseases of the kidney, skin, and/or...Ch. 6 - How could a disease that affects primarily...Ch. 6 - It used to be common practice in surgical fracture...Ch. 6 - Explain why young men who take anabolic steroids...Ch. 6 - Prob. 3AYKACh. 6 - Prob. 4AYKB
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