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Andrews [41]
3 years ago
5

Describes hydrogen bonding in DNA?

Biology
1 answer:
Bas_tet [7]3 years ago
8 0

Answer: Hydrogen bonds are created between the base pairs in DNA. Adenine pairs with thymine and cytosine pairs with guanine. Adenine and thymine create 2 hydrogen bonds while cytosine and guanine create 3. These bonds are fairly weak so that they can be broken when DNA is replicated (by an enzyme called helicase which unwinds DNA). However despite them being weak they do stabilize DNA's double helix structure as well.

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50 POINTS
lapo4ka [179]

City-state government was often conquered because they did not have enough resources to protect themselves

Explanation:

A city-state government is an independent autonomic political system which usually compromises just a single independent city which is governed by itself with sovereignty over its territory. The city-states like Greece, Italy, and Rome etc became very powerful.

The main reason for these city-states being conquered more was the accumulation of wealth and aristocracy in such states.

Heavy taxes, religion, slavery also lead to social unrest and conflicts among these city-states which made them weaker.  These internal conflicts also made them lose their resources and vulnerable to be conquered by other powerful empires.

With the increasing power of neighboring states, like in the case of Rome and Greece, the Romans became mightier than Greeks at one point and conquered the Greek city-states.

6 0
3 years ago
Briefly describe how thyroid problem occurs in people.​
Misha Larkins [42]

Explanation:

Thyroid disease occurs when the thyroid (a small, butterfly-shaped gland in the front of your neck) does not produce the right amount of thyroid hormone. These hormones control how your body uses energy.

8 0
3 years ago
In evolutionary history, the first animals to successfully invade land from the sea were ___________________, an animal with a h
gladu [14]
Arthropods were the first animals to successfully invade land from the sea
7 0
4 years ago
What skills and education do careers in agronomy require?
Lynna [10]
To be an agronomist, you should have an interest in science and a bachelor's degree. In college take agriculture, biology, chemistry, mathematics, physics, and statistics courses, as well as broad based general education courses, including English and speech. Hope this helps your question.
8 0
2 years ago
A dwarf planet is a
Naya [18.7K]

Answer:

a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape,2 (c) has not cleared the neighbourhood around its orbit, and (d) is not a satellite.

5 0
3 years ago
Read 2 more answers
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