Trees that intentionally lose their leaves according to coordinated, seasonal schedules are:

A) thigmotropic. B) deciduous. C) sporophytes. D) gametophytes.


Answer: B

Biology & Microbiology

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A few bacteria are capable of growing on gases as the sole source of energy, carbon, and nitrogen. Which of the following combination of gases would support the growth of a bacterium in mineral media with NO other additions?

A) H2, N2, CO2 B) H2, O2, N2, CO2 C) H2, H2S, N2, CO2 D) H2, O2, N2O, CO2

Biology & Microbiology

If Andrew has indeed inherited the Huntington's allele from his mother, what are the chances that he could pass the allele to his children?

a. 1 in 4 (25%) b. 2 in 4 (50%) c. 3 in 4 (75%) d. 4 in 4 (100%)

Biology & Microbiology

Which enzyme is used in the synthesis of new eukaryotic genetic material? 

A. DNA polymerase B. tyrosine C. RNA polymerase D. reverse transcriptase

Biology & Microbiology

Crossing over happens during which phase of meiosis?

What will be an ideal response?

Biology & Microbiology