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1) a. In a population of 100 inbred genotypicallyidentical rice plants, variance for grain yield is 4.67grains2. What is the heritability for yield?
b. Would you advise a rice breeder toimprove yield in this strain of rice plants by selection?
2) In a cross between a strain of large guinea pigs (1200g)and a strain of small guinea pigs (700g), the F1 are phenotypicallyuniform with an average size of about 950g. The F1 guinea pigs areallowed to interbreed to produce F2. Among 1014 F2 individuals, 3are about the same size as the small parental strain and 5 areabout the same size as the large parental strain.
a. How many loci are involved in the inheritance of size inthese strains of guinea pigs?
b. Make a rough estimate for the Vp for body sizein the F2 population.
c. Can you estimate VG for the F2 population?
You want 1 L of 100 mu M NaCl, and you have 1 M stock solution. How much of the stock solution and determine how much dH2O will you measure out for this dilution?
In a lab, you are supposed to observe and record the 4 different kinds of corn kernel phenotypes. The phenotypes are purple smooth, purple wrinkle, yellow smooth, and yellow wrinkled.
The results are 1.1670×104 cpm for the normal diet and 7458 cpm for the low-protein diet conditions. You should createa graph similar to the one at the bottom of the figure that demonstrate the normalized results relative to the normal diet condition..
In Mandel's Peas, yellow seeds are dominant to green. a pure breeding yellow plant is crossed with a pure breeding green plant. all of the offspring are yellow. if one of these yellow offspring is crossed with a green plant,what will be the expete..
Define germline and soma (1). Explain the concept of separation of germline and soma (2). Explain how this concept changed our understanding of the evolutionary significance of the inheritance of acquired characteristics (2).
Where are lysosomes formed?
Explain how cell division and the sexual reproduction help in genetic variability of organism. How do both the meiosis and sexual reproduction (fertilization) generate offspring which differ genetically from parents?
How are somatic cells able to replicate its DNA and how would you identify the stages a cell cycle is undergoing?
compare and contrast the life cylces of bryophytes , seedless vascular plants and gymnosperms . How do any of the differences you mention affect the relative success of these different groups in dry environments ?
Your friend has isolated plasma membranes and reassembled the membranes into small vesicles. Using fluorescently labeled lectin, he sees that some of his vesicles are labeled while others are not.
To what extent does the statement that the right coronary artery supplies the right heart, and the left coronary artery the left heart, require qualification?
Name two characteristics of slime molds by stating their mode of nutrition and how they survive conditions unfavorable for growth.
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