This one can be tricky, because your are changing the appearance of the substance. But here, you aren't changing its chemical form, so its a physical change. Even though you can't bring the pencil to its original beginning, its still a physical change.
Answer: Physical change.
Answer:
TACGTACGTTAC (so the second one)
Osmosis<span> is the phenomenon of the movement of Solvent molecules from lower solute conc. to higher solute conc. through a semi-permeable membrane to make solute conc. equal on both sides.</span>
Because for female sex link desease would require X°X° but for male X°Y so during crossing X linked dear are more common in male.
Adenine pairs with thymine (or uracil), and guanine pairs with cytosine.