1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
svet-max [94.6K]
4 years ago
8

The base pairs in a DNA strand are held together with hydrogen bonds. If the two nitrogenous bases in each pair were held togeth

er with covalent bonds instead of hydrogen bonds, what effect would it have on the cell?
The cell could open and close the DNA strand with less effort if the bonds were covalent.
Each time the DNA strand opened the cell would need to replace the nitrogenous bases.
The cell would have to take in and use more energy in order to break the covalent bonds.
Since the covalent bonds are unbreakable it would be difficult for the cell to make mRNA.
Biology
2 answers:
saul85 [17]4 years ago
6 0

The correct answer to your question is C

Tcecarenko [31]4 years ago
3 0
Hi,
I think the answer is the third one.

I hope this helps. If you’d like further explanation please let me know. Also, English is not my first language, so I’m sorry for any mistakes.
You might be interested in
Nutrients enter the bloodstream during the process of
Elis [28]
The choice that best fits and answers the question is;

D: absorption

I hope this answer is sufficient and has aided you.

Cheers.


6 0
3 years ago
Garlic mustard has been introduced to the beetles ecosystem. Describe what would happen to the beetles population as a result an
lbvjy [14]

Answer:

It would collapse

Explanation:

Garlic mustard also produces root exudates that inhibit the growth of important soil fungi and leaf chemicals that kill native butterfly larvae that feed on the plant

In addition, invertebrates and other consumers that rely on these natural plant species for food are harmed by the spread of this invasive "weed". Garlic mustard also produces root exudates that inhibit the growth of important soil fungi and leaf chemicals that kill native butterfly larvae that feed on the plan

4 0
3 years ago
Glucokinase and hexokinase in glycolysis
Delicious77 [7]
<h2>Answer:</h2>

Glucokinase or Hexokinase is a enzyme used at the first step of glycolysis.

<h2>Explanation:</h2>
  • Glucokinase is a Isoenzyme(enzymes which differs in the sequence of amino acids but catalyses the same reaction) of Hexokinase .
  • Glucokinase (hexokinase D) is present only in liver and pancreas whereas hexokinase is present in all cells.
  • In first step of glycolysis i.e formation of glucose-6-phosphate from glucose is completed with the help of hexokinase. In this step a ATP molecule is consumed i.e ATP is converted to ADP

Result: Glucokinase and hexokinase are used in the first step of glycolysis.

8 0
3 years ago
Please help me with this question..asap​
fiasKO [112]

Answer:

The pollen grain is creating a tube down the style of the flower. <u>It is necessary as that is how the pollen is able to travel down the style into the ovary where the baby seed is located. This is how the seed is fertilized, and is ready for reproduction.</u>

7 0
3 years ago
The theory of endosymbiosis suggests that chloroplasts and mitochondria were once free-living prokaryotes, that were engulfed by
Ket [755]

The answer is C. The symbiotic relationship has evolved for so many years such that the two are obligate symbiotes and cannot function normally without the other. Chloroplast and mitochondria are believed to have been once free-living bacteria according to endosymbiosis theory.


7 0
4 years ago
Other questions:
  • Which sugar is the most common source of energy used by cells?
    7·1 answer
  • Lymphoid tissue that appears as a swelling of the mucosa in the oral cavity is called a(n) _____________ .
    13·1 answer
  • In the heart blood flows from the right ventricle to the atrium where it is pumped to the?
    6·2 answers
  • Which plant provides its fruits and flowers as food .what are they rich in?
    8·2 answers
  • Which tool can be used to determine the volume of a metal bolt?
    14·1 answer
  • ¿Cuál de los siguientes órganos del sistema excretor es responsable de filtrar los desechos?
    10·1 answer
  • Identify the types of mutations represented by the change in each DNA sequence.
    15·1 answer
  • What do gradualism and punctuated equilibrium have in common?
    5·2 answers
  • Draw a Conclusion
    5·1 answer
  • A chemist reacts 128.95 g of Fe3N2 and 32.34 g of Al as shown below.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!