Grasses are usually the first plant species to colonize sand dunes

Indicate whether the statement is true or false


TRUE

Biology & Microbiology

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What strategies are used by the cell to make energetically unfavorable reactions occur?

What will be an ideal response?

Biology & Microbiology

Which purine base forms 3 hydrogen bonds when binding its complementary nucleotide base?

A. guanine. B. cytosine. C. thymine. D. uracil. E. adenine.

Biology & Microbiology

Suppose a woman has four sons, and two are color blind but have normal blood clotting and two have hemophilia but normal color vision. What is the probable genotype of the woman?

In humans, the genes for red-green color blindness (R = normal, r = color blind) and hemophilia A (H = normal, h = hemophilia) are both X-linked and only 3 map units apart. A) H R / h r B) H r / h r C) h r / h R D) H r / h R E) H R / H r

Biology & Microbiology

In DNA molecules,

A. cytosine pairs with adenine. B. thymine pairs with uracil. C. adenine pairs with uracil. D. adenine pairs with thymine. E. cytosine pairs with thymine.

Biology & Microbiology