Hydrogen bonds are weak, so they are less importance in subduing the structure o

Question

Hydrogen bonds are weak, so they are less importance in subduing the structure of molecules than covalent bonds, which arc stronger than hydrogen bonds. 2. Prokaryotes are always unicellular, and eukaryotes are always multicellular. 3. Living cells are not at equilibrium. 4. H-DNA contains strands of all purine or all pyrimidines which form triple-stranded helices. 5. Meselson and Stahl showed that DNA replication is semi-conservative, by growing bacteria in media containing different isotopes of phosphorus and measuring the density of the bacterial DNA in density gradients. 6. Hershey and Chase showed that DNA is the genetic material, because when they infected bacteria with a virus containing ^32 P-labeled DNA and ^35 S-labeled proteins, the new viruses produced by the infection contained only ^2P. 7. CO_2, like H_2O, is polar and have a dipole moment.

Explanation / Answer

1. True

Covalent bonds are 10x stronger than hydrogen bonds and  Ionic bonds are more important than covalent bonds.

2.False.

Almost all the prokaryotes are unicellular but few  exceptions, contains cyanobacteria they are multicellular prokaryotes.

3. True

Plasma membranes is permeable in nature. It allows influx and outflux passage of substances. Thus it never attained the state of equilibrium.

4. True

H- DNA is a unusual form of DNA , it is also called as triple helix. It contains three strands special base pairing known as Hoogsteen base pairing.

5. True

6.False

It uses the isotope of nitrogen,

7. False

Co2 is  non-polar molecule, its net dipole moment is zero. H2O is a polar and have dipole moment.

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