Chitons, snails, clams and squid all belong to this phylum:

a. Mollusca.
b. Gastropoda.
c. Bivalvia.
d. Platyhelminthes.
e. Cephalopoda.


A

Biology & Microbiology

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Which of the following are incorrectly matched for a single-factor cross?

A. P generation / true breeding B. F1 generation / monohybrid C. F2 generation / result of F1 cross D. F1 generation / result of P cross E. F2 generation / result of P cross

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If you eliminated all sources of calcium (dairy products, some vegetables) from your diet, the level of

which of the following would rise in an attempt to supply calcium stored in your body to the tissues that need it? a. aldosterone b. calcitonin c. mineralocorticoids d. parathyroid hormone e. angiotensin

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The broad-sense heritability of a trait is estimated at 0.8. If the total phenotypic variance is estimated at 32.20, what is the genetic variance?

What will be an ideal response?

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Cytochromes contain a heme group similar to that in hemoglobin. The iron atom (Fe) in the center of the group can be oxidized and reduced. If someone was suffering from iron deficiency anemia, what stage of cellular respiration would be most affected?

A. Glycolysis B. The electron transport chain C. Fermentation D. The Citric acid cycle

Biology & Microbiology