Non-true-breeding hairy-leaved plants are crossed with smooth-leaved plants.
a. What genotypic and phenotypic ratios would you expect for the potential offspring?
b. Suppose you perform such a cross, collect data, and do a chi-square test to aid in data analysis. How many degrees of freedom would there be?
c. Suppose your chi-square value is very large (>25). What does this indicate about your experiment and/or hypothesis?
a. What genotypic and phenotypic ratios would you expect for the potential offspring? Genotypic 1Hh and 1hh. Phenotypic 1 hairy-leaved plant and 1 non-hairy leaved plant.
b. Suppose you perform such a cross, collect data, and do a chi-square test to aid in data analysis. How many degrees of freedom would there be? One
c. Suppose your chi-square value is very large (>25). What does this indicate about your experiment and/or hypothesis? The hypothesis would be based in statistically significant results.
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Early vascular plants had true leaves
A. true B. false
Which amino acid would Nirenberg and Leder have found when they used the triplet UAG?
A. Isoleucine B. Proline C. Lysine D. Threonine E. None of these
A man is found dead with no marks on his body in a small enclosed furnace closet. The medical examiner rules death
by hypoxia. However, the criminal investigation finds that the room has adequate air flow. What is the most reasonable explanation for the cause of death that should be investigated further?
a. There was too little oxygen in the room. b. The furnace was faulty and burned up all the oxygen. c. The furnace was faulty and released carbon monoxide which accumulated in the closet. d. There was too much carbon dioxide in the room. e. The man strangled himself but the rope disappeared.
____ are dome-shaped structures composed of
layers of early cells and sediments.
a. Meteorites b. Pumice stones c. Stromatolites d. Rhyolites e. Ignimbrites