The visible indentation that forms on the exterior of a dividing animal cell is called the ________
a. cleavage furrow
b. gray crescent
c. contractile ring
d. cell plate
a
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Which nucleotide pairs mark the beginning and end of each intron?
a. GG at the 5’ end, AU at the 3’ end b. AG at the 5’ end, GU at the 3’ end c. GU at the 5’ end, AG at the 3’ end d. GA at the 5’ end, AG at the 3’ end
What is an example of basic research?
a. Developing a new diagnostic test b. Synthesizing proteins for treating disease c. Manufacturing a vaccine d. Developing a new drug to treat diabetes e. Learning how plants turn carbon dioxide into sugar
Photosynthesis occurs in which type of plant tissue?
A) parenchyma B) vascular cambium C) epidermal tissue D) collenchyma
The difference between ATP and the nucleoside triphosphates used during DNA synthesis is that _____
A) the nucleoside triphosphates have the sugar deoxyribose; ATP has the sugar ribose B) the nucleoside triphosphates have two phosphate groups; ATP has three phosphate groups C) ATP contains three high-energy bonds; the nucleoside triphosphates have two D) ATP is found only in human cells; the nucleoside triphosphates are found in all animal and plant cells