DNA consists of two antiparallel strands of nucleotides held together by
A. peptide bonds.
B. covalent bonds.
C. ionic bonds.
D. hydrogen bonds.
D. hydrogen bonds.
You might also like to view...
_____ are removed from new mRNA transcripts
a. Introns b. Exons c. Telomeres d. Amino acids
Nociceptors:a
may be thermal, mechanical, or even chemical. b. always result in the perception of pain. c. transmit signals directly to interneurons in the brain when stimulated. d. are immune to sensitization. e. are insensitive to endogenous opiates, but can be suppressed by synthetic forms.
If all of the hairlike structures, called ________, in respiratory passages suddenly stopped working, a person would probably have more respiratory infections
Fill in the blank(s) with correct word
What biome includes an environment where the plants are low to the ground and many boggy areas are found?
A) a boreal forest B) a savanna C) a tundra D) a prairie