Question

Question 1 1 pts Which of the following must be true of integral membrane transport proteins in prokaryotes? O They are composed of more than one protein They require ATP or another high-energy molecule They use proton-motive force for transport They are ABC transport systems They are amphipathic Question 2 1 pts DNA hybridization techniques, such as FISH, require the melting and re-annealing of DNA to its original form. What chemical feature of DNA allows for this to occur? Planarity of bases Polyphosphate backbone is anionic Hydrogen bonding between bases Antiparallelism O Poly A tails

Answer 1

Q1 Ans:- They are amphipathic

Explanation:- Membrane transport protein is involved in the transport of ions, molecules, etc across a biological membrane. This transmembrane protein can be broadly categorized as carriers and channels. These are amphipathic means that have both kinds of region hydrophobic and hydrophilic. They works by active transport( involving ATP as an energy source) or passive transport (no energy is required).

Q2 Ans:- Hydrogen bonding between bases

Explanation:- DNA hybridization itself works due to the feature of hydrogen bonding between bases or more specifically due to hydrogen bonding between bases of DNA strand having complementary base sequences of that are present in the target DNA strand. Better the complementarity better the hybridization will be.

In the same way, as the name suggests Fluorescence in situ hybridization (FISH), it's a hybridization technique so it would use the hydrogen bonding of bases as a chemical feature of DNA.