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
Natasha2012 [34]
3 years ago
9

Which of the following monomers would be used to make the double helix of a DNA molecule?

Biology
2 answers:
Nina [5.8K]3 years ago
8 0

Answer;

A monomer made up of a nitrogenous base, a five-carbon sugar, and a phosphate group bonded together.

Explanation;

-Nucleic acids such as DNA and RNA are made up of chains of many repeating units called nucleotides. Nucleotides are made up of a 5-carbon sugar(deoxyribose),a phosphate group and a nitrogenous base bound to the sugar . Adenine makes two bonds with Thyamine whereas Cytosine makes three bonds with Guanine.

-The DNA double helix is held together by two types of bonds, covalent and hydrogen. Covalent bonds occur within each linear strand and strongly bond the bases sugars, and phosphate groups.  Hydrogen bonds occur between the two strands and involve a base from one strand with a base from the second in complementary pairing. These hydrogen bonds are individually weak but collectively quite strong.

Sergio [31]3 years ago
6 0
A monomer made up of a nitrogenous base, a five-carbon sugar, and a phosphate group bonded together.
You might be interested in
The primary neurotransmitter at the neuromuscular junction is
aleksandrvk [35]

Answer:

<u>acetylcholine</u>

Explanation:

In the pre-synaptic knob there are vesicles which contain a transmitter substance called acetylcholine. When an impulse reaches the synaptic knob, it stimulates the vesicles to move towards the pre-synaptic membrane releasing the acetylcholine.

The transmitter substance makes the membrane permeable. The neuromuscular junction contains the sensory neurone(afferent), motor neurones(efferent) and the relay neurones(connector).

5 0
3 years ago
Why do you think there are more organisms and energy available for life in the producer level?
lutik1710 [3]

Answer:

Producers which means plants have the most energy in a food chain or web besides the sun and they give an organism more energy than a primary consumer or secondary consumer would. Plants absorb about 1% of the sunlight that strikes them. The rest is reflected into space or transmitted through objects.

5 0
2 years ago
Negative of pest control methods.
Blizzard [7]

Answer:

Control methods

Biological pest control. Main article: Biological pest control. ...

Cultural control. Cultivation by ploughing exposes insect pests to predators such as black-headed gulls. ...

Trap cropping. Main article: Trap crop. ...

Pesticides. Main article: Pesticide. ...

Hunting. ...

Physical pest control. ...

Poisoned bait. ...

Fumigation.

5 0
3 years ago
Which of the following is the best example of evolution occurring?
s2008m [1.1K]
Strains of bacteria can become immune to antibiotics that once killed them effectively <span>is the best example of evolution occurring.</span>
4 0
3 years ago
Read 2 more answers
Which statement describes solstices?
jeyben [28]

Answer:

They occur when the Sun reaches its highest or lowest point in the sky.

4 0
3 years ago
Other questions:
  • PLEASE HELP I'M STUCK AND I'LL GET A 0 !What do Carnivores consume?why might carnivores be called Secondary consumers?(I'm givin
    5·2 answers
  • Which type of epithelium is present where easy exchange of materials out of the blood is most important, such as that in the lin
    13·2 answers
  • Which was not produced by volcanic outgassing?
    12·2 answers
  • Please help
    5·2 answers
  • Why would be the most likely outcome of the ribosomes of a cell were damaged and stopped functioning
    5·1 answer
  • how come honey bees all across the world are disappearing and dying? how can we stop / prevent this from happening ?
    5·1 answer
  • Select the correct statement about lymphocytes. A) B cells produce plasma cells, which secrete antibodies into the blood. B) The
    11·1 answer
  • Huntington's disease is an autosomal dominant trait. Given the pedigree below, if individual IV-4 has three children with a norm
    5·1 answer
  • The yeast used to make beer can perform aerobic respiration or alcoholic fermentation. When O2 is available, yeast perform aerob
    5·1 answer
  • HELP OUT PLEASE!!!!<br><br> Earn 15 point <br><br> THANKS -
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!