Homologous chromosomes are similar in all of these characteristics EXCEPT:

A. similar in size.
B. carry the same alleles for all traits.
C. carry genes for the same traits.
D. similar in shape and location of the centromere


Answer: B. carry the same alleles for all traits.

Biology & Microbiology

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In a synapse, a neurotransmitter is released _____

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Biology & Microbiology

A bacterial cell has a nonsense mutation that prevents it from producing a functional sigma subunit for RNA polymerase. Inability to synthesize a functional sigma subunit would have the most direct effect on  

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Biology & Microbiology

All of the following were produced in experiments on primitive Earth conditions conducted by Miller-Urey and others, except for  

A.  amino acids. B.  organic molecules. C.  prokaryotes. D.  hydrogen cyanide. E.  urea.

Biology & Microbiology

Malpighian tubules are lined with which of the following to increase their absorptive surface area?

a. nephridia b. transport vesicles c. microvilli d. lysosomes

Biology & Microbiology