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
marta [7]
3 years ago
11

The backbone of the double helix has an alternating molecules. what do you call these alternating molecule?

Biology
1 answer:
aivan3 [116]3 years ago
5 0

This backbone is composed of alternatingsugar and phosphate groups, and defines directionality of the molecule. Thesebonds are called phosphodiester bonds, and the sugar-phosphate backbone is described as extending, or growing, in the 5' to 3' direction when the molecule is synthesized.

You might be interested in
10 organisms that are found in underground habitals​
jarptica [38.1K]
Ants
Earthworms
Rabbits
Armadillo
Badger
Bilby
Burrowing owl
Chipmunks
Olm
Mole
Meetkats
6 0
3 years ago
What are signs and observations of these things boiling water,baking a cake,burning wood painting a door and you must tell me wh
lawyer [7]
I believe Enthalpy is the scientific term for the changes. The specific changes each item listed undergoes is hard to say correctly without knowing the options. Could you list the answers to choose from so I can get a better understanding of what they want in the answer?
3 0
3 years ago
Explain how contact lenses can be a source of DNA.
sergejj [24]

Answer:

A contact lens (CL) can act as a vector for microorganisms to adhere to and transfer to the ... Thus, this detailed understanding of lens-related bioburden is important in the ... There are many other speculative causes of inflammation (lens deposits or ... Silver ions interact with the DNA of bacteria preventing cell reproduction, ...    

A contributor to this problem has been our sketchy understanding of the normal ... and of the microbes that are leading causes of contact lens-associated infection, ... During contact lens wear microbes can enter the eye from the wearer's lid ... Lessons from DNA microarray analysis: the gene expression profile of biofilms.

Explanation:hope this helps

4 0
3 years ago
Read 2 more answers
Non-Mendelian inheritance patterns can be sorted into three categories: incomplete dominance, codominance, and sex-linked traits
mart [117]

Answer: B (Color blindness)

Explanation:

Typical red-green color blindness in human patients is caused by mutations on genes located in the X chromosome. These mutations act in a recessive manner. Since females have two X chromosomes, the presence of a mutation in a single one of them does not normally result in color blindness. Males, in contrast, have a single X chromosome and therefore the presence of a mutation is likely to cause the disease.

About the other options: Down‘s syndrome is a numerical chromosomal anomaly, not related to sex. Human blood type is a codominant trait. Finally, tail length in dogs is a polygenic trait not amenable to classic Mendelian analysis.

7 0
3 years ago
According to one hypothesis, life on earth emerged from (bluegreen algae/ amino acids/ molten metals/ crustal rocks) in the pres
Yuri [45]
1) The answer is <span>bluegreen algae
</span>
Bluegreen algae or cyanobacteria <span>are thought to have started life on earth because they converted the atmosphere that didn't have a lot of oxygen, into an atosphere with enough oxygen to exist life. That </span>oxygen was a product of their photosynthesis.

2) The answer is lightning.
<span>By Primordial Soup Theory, life began as a result of the combination of chemicals from the atmosphere and lighning (a form of energy) to make amino acids. Aminoacids are necessary to build proteins, and proteins are necessary for all the organisms.</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • In what way are the humerus and the femur similar?
    11·2 answers
  • 1. What's a stalactite?
    9·1 answer
  • Which statement best illustrates a biotic or an abiotic factor that is often found in a city park?
    5·2 answers
  • 1.Butter is an example of
    7·1 answer
  • ¿Cómo explicaría VAN HELMONT la aparición del moho verde en la superficie de un queso? ¿Qué nombre recibe esta teoría o es una i
    9·1 answer
  • "In genetic modifications, DNA inserted can come from _____ ." any organism containing the DNA of interest only the same plasmid
    15·1 answer
  • An igneous rock that cools quickly will have what type of crystal size?
    12·1 answer
  • How many codons equals 1 amino acid?
    6·1 answer
  • WILL GIVE BRAINLIEST IF RIGHT!!! PLS HELP
    15·1 answer
  • Why would scientists analyze another specimen from the same species
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!