Four of the five choices listed below are related by

the quantity of chromosomes present. Select the
exception.
a. spores
b. sporophyte
c. egg
d. sperm
e. gametophyte


Answer: b

Biology & Microbiology

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DNA fragments can be separated in gel electrophoresis because

A. nitrogenous bases have a net negative charge. B. phosphate groups have a net negative charge. C. nitrogenous bases have a net positive charge. D. phosphate groups have a net positive charge.

Biology & Microbiology

12 H2O + 12 NADP+ + 18 ADP + Pi ? 6 O2 + 12 NADPH + 18 ATP summarizes the __________

reactions of photosynthesis. a. carbon fixation b. light-dependent c. light-independent d. CAM e. electron transport

Biology & Microbiology

How does the rate of extinction today compare to the rates in the past?

A) The rate is much lower today than it has been, on average, in the past. B) The rate is about the same today as it has been, on average, in the past. C) The rate is much higher today than it has been, on average, in the past. D) The extinction rate today can't be estimated or calculated.

Biology & Microbiology

The brain receives input from the proprioceptors, the eyes, and the vestibular nerve to help maintain our equilibrium.

Answer the following statement true (T) or false (F)

Biology & Microbiology