The movement of DNA polymerase continues unimpeded if a thymine dimer is present in the DNA double helix.

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


False

Biology & Microbiology

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Isoetes is the only species of (living) lycophytes that contains ____

Fill in the blank with the appropriate word.

Biology & Microbiology

Which of the following statements about plant macronutrients is/are true? Check all that apply.  

_____  They approach or exceed 1% of a healthy plant's dry weight. _____  They reduce the need for CO2 during photosynthesis. _____  A deficiency in any one can have severe effects on a plant's growth. _____  They can have important implications for human nutrition. _____  The ability of the plants to take up minerals is affected by soil pH.

Biology & Microbiology

A channel that opens in response to the binding of a specific molecule, which is usually NOT the solute that passes through the channel is called a(n)_____.

a) positive-gated channel b) ligand-gate channel c) voltage-gated channel d) electric-gated channel e) charge-gated channel

Biology & Microbiology

Which of the following nitrogenous bases is NOT found in molecules of DNA?

a. adenine b. guanine c. uracil d. thymine e. cytosine

Biology & Microbiology