What type of chemical bond connects the complementary strands of a DNA molecule to each other?
A) hydrogen bonds
B) ionic bonds
C) nonpolar covalent bonds
D) polar covalent bonds
A
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Diploid (2n) means having
A. the somatic cells have all chromosomes except the sex chromosomes. B. a single set of chromosomes not having homologous pairs. C. both the allele and the autosome form of chromosomes. D. two complete sets of homologous chromosomes. E. one complete set of chromosomes in each gamete.
Capillary action is one of the forces that aids water's upward movement in plants. The narrower the diameter of the tube, the farther the water column will rise. Capillary action is a result of water molecules:
A. having an adhesive force, which allows them to attach to the vessel walls. B. producing sufficient surface tension to overcome the pull of gravity. C. being associated with hydrophobic molecules, which can result in upward movement. D. storing heat and thus moving faster because of heat of vaporization. E. having a strong cohesive force and attaching to the surrounding vessel walls.
Explain the steps of binary fission
What will be an ideal response?
________ are various bacterial enzymes that dissolve fibrin clots.
Fill in the blank(s) with the appropriate word(s).