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Cross was made between two strains of plants that are agriculturally important, one strain was disease resistant but herbicide sensitive, the other strain was disease sensitive but herbicide resistant. A plant breeder crossed the two plants and then allowed the F1 generation to self-fertilization. The following data were obtained:
F1 generation: All offspring are disease sensitive and herbicide resistantF2 generation: 157 disease sensitive, herbicide resistant57 disease sensitive, herbicide sensitive54 disease resistant, herbicide resistant20 disease resistant, and herbicide sensitive
Perform a chi-square analysis to demonstrate if the inheritance pattern obeys the law of independent assortment. Please show the steps of calculation. The Chi-square table is attached.
Describe how the body normally adapts to elevated altitude and the causes for the sequence of events associated with chronic mountain sickness.
what fraction of males and females are expected to be color-blind in the generation immediately following the arrival of the immigrants (assume populations consist 50% of males and 50% females).
What do we call a cluster of chlorophyll molecules found inside the thyroid.
Mutations occur randomly in DNA sequences, sometimes leading to the synthesis of non-functional or sub-functional proteins. If an essential gene mutates and subsequently encodes a non-functional protein, an organism will likely die or fail to deve..
In performing a blood typing procedure on a patient , if all three anti-sera cause agglutination , what blood type does the person have?
All ribosomes are associated with the rough endoplasmic reticulum; in fact it gets its name ("rough") from how ribosomes look in the electron microscope lining its surface.
A drug used for leukemia is not broken down in the stomach and is well absorbed by the intestine. However, the molecular form of the drug collected from the blood is not the same as the form that was swallowed by the patient. What explanation is m..
Draw up a clearly labelled and appropriate 2 x 2 table to show these data. How many times more likely was a smoker to develop lung cancer than a non-smoker?
An enzyme that follows Michaelis-Menten kinetics has a Km of 1 ?M. The initial velocity is 0.1 ?M min -1 at a substrate concentration of 100 ?M. What is the initial velocity when [S] is equal to 2 mM?
Briefly describe five factors that decrease the stability of an helix. Include examples of specific amino acids with each factor that would act to destabilize a helix.
Hemophelia is a sex linked recessive trait carried on the X chromosome. A woman is hemophilic mates with a man that is normal. Find the probability of one of their daughters being hemophilic?
Assume you have identified a mutant E. coli strain that cannot synthesize histidine. To determine the location of the his- mutation on the E. coli chromosome.
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