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Two extensively inbred strains of summer squash - designated "crookneck" and "scallop" - are crossed. The length of fruit in the crookneck averages 40 cm and that in the scallop averages 7 cm. In the F1 generation of the cross crookneck X scallop, the average fruit length was 18 cm and the variance in fruit length was 11 cm2. In the F2 generation obtained from the crossF1 X F1 and grown under the same conditions, the variance in fruit length was 70 cm2. a. What is the standard deviation of the fruit length in the F2 generation?b. What is the magnitude of the environmental variance in the F2 generation?c. What is the magnitude of the genotypic variance in the F2 population?d. What is the broad-sense heritability of fruit length in the F2 population?e. Are most differences in fruit length in the F2 generation due to differences in genotype among the plants or to differences in environment?
State the key products of the Kreb's Cycle and how various of each there are starting from 1 glucose molecule.
Explain the following parts of the neuron and give the function of each part, Describe what is happening when you stare at the image, than transfer your gaze to a blank sheet of paper.
The antibiotic Gramicidin A can transport Na+ ions into a certain cell at the rate of 5.0 x 10^7 Na+ ions channel^-1 s^-1. Calculate the time in seconds to transport enough Na+ ions to increase its concentration.
Propane boils at -46oC. Propanol boils at 97oC. The difference is attributable to, Determine which of the following pairs of functional groups CANNOT react with each other by a dehydration reaction?
define a genetic cross between two sufferers
specify the amino acid sequences
According to ABC model of floral development, which genes would be expressed in a showy ornamental flower with multiple sepals and petals but no stamens or carpels.
define treatment of phenylketonuria and galactosemia.
Assume you are studying genes and DNAsequences involved in the regulation of the grandoperon. When your lab's strain of e. coli are in the presence of the sugar "grandiose," transcription of 2-enzymes grandAand grandB increases.
What is the probability that the fetus has inherited the disease allele D if the distance between the D locus and the microsatellite marker locus is: (A) 0 map units? (B) 2 map units? (C) 50 map units? Please explain how to do it. I already have t..
In a herd of Shorthorn cattle the frequency of the r allele is .4. Because of prevalence of pinkeye, white cows produce and average of 0.60 calves that reach puberty.
Suppose if the blood pressure in all pulmonary capillaries is the same, would you expect the capillaries to be open or collapsed?
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