Knowledge of silencing genes provided scientists with clues to the expression of genes controlling what characteristic in petunias?

A. number of flower parts
B. color expression
C. time of flowering
D. placement of flower parts
E. vitamin deficiencies


Answer: B

Biology & Microbiology

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If you touch a hot stove with your hand, the sensory receptors in your hand send a signal of pain to the CNS through the _____________ nerve fibers of the peripheral nervous system.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

The process of in situ hybridization is used for which of the following?

A. Cytogenetic mapping B. Physical mapping C. Linkage mapping

Biology & Microbiology

Of the 3 phases of the menstrual cycle, menstrual, proliferative, and secretory, ovulation occurs during the ________ stage of the menstrual cycle

Fill in the blank(s) with correct word

Biology & Microbiology

Which feature of anaerobic and aerobic respiration is different between the two catabolic strategies?

A) electron donor B) electron acceptor C) use of electron transport D) use of proton motive force

Biology & Microbiology