Answer:
d
Explanation:
because if you put half the amount of nicotine per cigarette they will still want to buy 2 the amount of cigarettes.
Answer: HOSA future health competitive event.
Explanation:
HOSA's future health professional and competitive event is held to prepare the students of today to become the workforce for the future. These competitions will be held in springs for identifying the members that are eligible for HOSA membership suitable for providing better health care services. This judge the students to be a better leader of the medical world.
Answer:
<h2>Population education is a multi-disciplinary subject because it draws its contents from major subject areas like Social Sciences, Demography, Applied and Natural Sciences etc. EXPLANATION: Population education is now being included in the curriculum of schools</h2><h2> to help children learn about the diversity of population.</h2>
Explanation:
<h2>__________________________</h2>
<h2>
<u>PLEASE</u><u> </u><u>MARK</u><u> ME</u><u> BRAINLIEST</u><u> AND</u><u> FOL</u><u>LO</u><u>W</u><u> ME</u><u> LOTS</u><u> OF</u><u> LOVE</u><u> FROM</u><u> MY</u><u> HEART'AND</u><u> SOUL</u><u> DARLING</u><u> TEJASVINI</u><u> SINHA</u><u> HERE</u><u> ❤️</u></h2>
Answer:
D. Yes, two hydrogen bonds could form between thymine and cytosine.
Explanation:
A hydrogen bond (often informally abbreviated H -bond) is a primarily electrostatic force of attraction between a hydrogen (H) atom which is covalently bound to a more electronegative atom or group, particularly the second-row elements nitrogen (N), oxygen (O), or fluorine (F)—the hydrogen bond donor (Dn)—and another electronegative atom bearing a lone pair of electrons—the hydrogen bond acceptor (Ac).
The formation of stable hydrogen bonds depends on the distance between two strands, the size of the bases and geometry of each base. Stable pairings occur between guanine and cytosine and between adenine and thymine (or adenine and uracil in RNA).
One hydrogen bond could form between the C4 carbonyl group on thymine (a hydrogen bond acceptor) and the C4 amino group on cytosine (a hydrogen bond donor). Another hydrogen bond could form between N3 of thymine (a hydrogen bond donor) and the N3 of cytosine (a hydrogen bond acceptor). Note that the C2 carbonyl groups found on both bases are both hydrogen bond acceptors and therefore a hydrogen bond cannot be formed between them.