If a pea plant is heterozygous for yellow seeds (Yy), which gametes will it produce?
a) Y only
b) Y or y
c) y only
d) Yy
e) YYyy
Answer: b) Y or y
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The ________ is a stiff, flexible rod that, at some point during the development of all chordates, extends along the length of the body, sandwiched between the digestive tract and the nerve cord
Fill in the blank(s) with correct word
Organisms that require organic sources of carbon and energy are called (chemoheterotrophs/chemoautotrophs/autotrophs)
What will be an ideal response?
Pseudomonas aeruginosa is a common pathogen that infects the airways of patients with cystic fibrosis. It does not grow in the absence of oxygen. The bacterium is probably which of the following?
A. an aerotolerant anaerobe B. an obligate aerobe C. an obligate anaerobe D. a facultative anaerobe
Which of the following is a type of microscope?
a. convex b. UV light c. dissecting d. scanning proton