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
Alekssandra [29.7K]
3 years ago
11

Why do scientists study proteins to find evidence for evolution?

Biology
1 answer:
mariarad [96]3 years ago
5 0

Answer:

Proteins reflect DNA sequences, so scientists study proteins to look for genetic similarities and differences in organisms.

Explanation:

I just took the test.

You might be interested in
Which element is more important to life, water or carbon? why?
stellarik [79]
Carbon would be the answer to this because it is an element while water is a compound. In addition, carbon had 4 bonding sites which allows it to form a variety of molecules like sugars, proteins, and even DNA that are essential for life as we know it.
3 0
3 years ago
A scientist runs an SDS-PAGE experiment two separate times on a protein with a molecular weight of 200 kD. For the first experim
Delicious77 [7]

Answer:

This protein consists of 8 subunits of equal size linked by disulfide bonds

Explanation:

The sodium dodecyl sulfate-polyacrylamide gel (SDS-PAGE) is a technique widely used in molecular biology laboratories to separate proteins with molecular weights between 5 and 250 kDa. SDS is an anionic detergent used to denature proteins before electrophoresis. SDS can denature proteins by altering non-covalent bonds such as hydrogen, hydrophobic and ionic interactions, but they cannot cleave disulfide bonds. In this case, reducing agents (e.g.,  β-mercaptoethanol or dithiothreitol) have been used to cleave disulfide bonds.

3 0
3 years ago
How do u explain the fact that the alcohol turns green?
Dmitrij [34]
Alcohol is a solvent and it basically dissolves anything. A lead is spongy and full of holes. When the leaf is mixed with alcohol, the alcohol affects the leaves. The alcohol melts the pigments of the leaf, chlorophyll, which is the green part. This will turn the alcohol green
6 0
3 years ago
The virus that causes mumps in humans is composed of a protein outer shell containing a core of DNA. The virus that causes the f
saveliy_v [14]
Flu vaccines need to be revised and changed every year because the flu virus constantly mutates. Flu viruses can change in two ways: drift or shift. Antigenic drift occurs when genes of the virus slowly change during replication until the immune system no longer recognizes it. On the other hand, antigenic shift occurs when a major change in the virus happens. This usually leads to a totally different kind of virus. This is what happened during the H1N1 scare in 2009.

DNA viruses like mumps are less prone to mutation due to the presence of DNA polymerase. RNA viruses are more prone to mutation because they undergo reverse transcription to simulate the role of DNA.
3 0
3 years ago
Read 2 more answers
Whigh part of an atom is responsible<br>for the flow of electricity? *​
Gre4nikov [31]

Answer:

Atoms are composed of particles called protons, electrons and neutrons. Protons carry a positive electrical charge, electrons carry a negative electrical charge and neutrons carry no electrical charge at all.

Explanation:

5 0
3 years ago
Other questions:
  • What evidence supports that whales are mammals?
    14·2 answers
  • A nurse in a child health clinic is obtaining the health history of a 5-year-old boy who was just found to have type 1 diabetes.
    5·1 answer
  • Explain the basic steps in the first half of photosynthesis (light-dependent reactions). Describe the movement of electrons and
    12·1 answer
  • Which of the following climates is a high-latitude climate?
    6·1 answer
  • Which of the following statements about weather along mountain ranges is correct?
    10·2 answers
  • What is the difference between aerobic and anaerobic respiration?
    14·1 answer
  • Why do grocery store owners spray fresh fruits and vegetables with water? <br>​
    11·1 answer
  • Tell whether the given processes occur in the mitochondria, cytoplasm, or chloroplast
    12·1 answer
  • Match each image to the correct step of meiosis..
    7·2 answers
  • In many tropical rainforests, people clear land by cutting down trees and burning them. After a few years, the soil runs out of
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!