According to Mendel, what kinds of genes
"disappear" in F1 pea plants?
a. sex-linked
b. dominant
c. recessive
d. codominant
e. lethal
C
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In plants, peroxisomes associated with nitrogen fixation in legumes can be found in great abundance in
A) leaves. B) stems. C) phloem and xylem. D) cotyledons. E) root nodules.
Which type of fossil is considered a trace fossil?
a. footprint b. shell c. seeds d. teeth e. spores
All of the microtubules are the same length, and homologous chromosomes are aligned midway between the spindle poles at ____.
A. telophase I B. metaphase I C. anaphase I D. metaphase II E. anaphase II
Which environmental factor has a direct effect on an organism's rate of water loss by evaporation?
A) insect biodiversity B) wind C) plant pollination rates D) algae abundance