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
Luba_88 [7]
3 years ago
7

For a couple of decades, biologists knew the nucleus contained DNA and proteins. The prevailing opinion was that the genetic mat

erial was proteins, and not DNA. The reason for this belief was that proteins are more complex than DNA. What was the basis of this thinking?
A) Proteins have a greater variety of three-dimensional forms than does DNA.

B) Proteins have two different levels of structural organization; DNA has four.

C) Proteins are made of 40 amino acids and DNA is made of four nucleotides.

D) Some viruses only transmit proteins.

E) A and B are correct.
Biology
1 answer:
BARSIC [14]3 years ago
4 0

Answer:

A) Proteins have a greater variety of three-dimensional forms than does DNA.

Explanation:

Proteins have a more complex nature as compared to DNA. Proteins structural organization is also very different.  The three dimensional structure  determine the function of protein based on the amino acid sequence. Proteins are the end products of the genetic information which perform the function and have greater variety

You might be interested in
Which organelles are needed to bring in or move out materials from the cell
lana [24]

Answer:

Molecules can diffuse across membranes via transport proteins, or they can be aided in active transport by other proteins. Organelles such as the endoplasmic reticulum, Golgi apparatus, mitochondria and peroxisomes all play a role in membrane transport.

4 0
3 years ago
Which of the following is a FALSE statement?
kykrilka [37]

Answer:

3rd one

Explanation:

because only DNA contain thymine and in RNA it contains uracil.

8 0
3 years ago
A fish whose streamlined body enables it to move easily in a current is most likely adapted to which aquatic ecosystem? ponds ri
amid [387]
Rivers, because rivers have currents that streamlined bodies are built for
4 0
3 years ago
Read 2 more answers
Answer asap and i mark you as brainliest
lana [24]
Lactose Intolerant

Hope this helped. Good luck!
Mark Brainliest!!!
6 0
3 years ago
Read 2 more answers
Reproductive isolating mechanisms are divided into categories based on when they act. _____ isolating factors prevent fertilizat
Cerrena [4.2K]

Answer: (B) Pre-zygotic; post-zygotic.

Explanation:

Prezygotic isolation occurs before fertilization of eggs. It occurs between the two sex gametes and deter sexual reproduction between different species.

However, individuals are considered to be diverge on the phylogeny tree and different species, when they cannot reproduce.

Mechanisms of prezygotic isolation include habitat isolation, gamete isolation, mechanical isolation, behavioral isolation, and mating seasons.

Whereas, postzygotic isolation prevents the formation of fertile offspring. This phenomenon leads to production of an hybrid offspring from different species and this is a form of speciation in nature.

Mechanisms of postzygotic isolation include hybrid inviability, hybrid breakdown, and hybrid sterility.

6 0
3 years ago
Other questions:
  • Plants use osmosis to transport water from the soil into their roots.
    9·1 answer
  • How are proteins are made, packaged, and transported within the cell?
    12·2 answers
  • The condition of paralysis is usually attributed to:
    8·2 answers
  • Why is a toxic chemical spill on land potentially harmful to animals that live in the ocean?
    8·2 answers
  • How do you locate an epicenter of an earthquake?
    5·1 answer
  • Which example involves a cell membrane receiving and sending messages?
    11·1 answer
  • According to the modern theory of evolution, ...
    14·1 answer
  • What do plants use to make up their structure?
    11·2 answers
  • Match each gymnosperm to its correct description. plzzz help me reeee​
    9·1 answer
  • Human activities often lead to eutrophication of freshwater systems. What are the impacts of eutrophication on lakes?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!