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
ludmilkaskok [199]
3 years ago
7

A student used the SDS-PAGE method to estimate the size of a protein. Through gel filtration the molecular weight of the protein

was 400 daltons. However, when he did SDS-PAGE he saw 3 different lines at A (25 daltons), B (50 daltons) and at C (75 daltons). What is the total composition of the protein, including each subunits molecular weight?
A. 2 of subunit A, 4 of subunit B, and 2 of subunit C
B. 6 of subunit B, and 4 of subunit A
C. 8 of subunit A, 1 of subunit B, and 2 of subunit C
Biology
1 answer:
lara [203]3 years ago
3 0

Answer:

I would say the correct answer is <u>A. 2 of subunit A, 4 of subunit B, and 2 of subunit C</u>

<u></u>

<u>Hope this help </u>

<u>I'm sorry if wrong </u>

<u>Have a nice day!!!</u>

You might be interested in
Many animals have developed courtship behaviors. Males will often dance, swim, or sing in a particular way to attract a female.
Levart [38]
It is a form of natural selection called sexual selection. 
5 0
3 years ago
When two hormones must be present to achieve full expression of an effect, that interaction is called ______________.
Vinvika [58]

Answer:

Synergism

Explanation:

Synergism means cooperation, and is a term of Greek origin (synergy). Synergy is a work or effort to accomplish a certain very complex task, and to be able to succeed in the end. Synergy is the moment when the whole is greater than the sum of its parts.

In physiology, synergism occurs when the effect of two or more combined chemical agents is greater than the sum of individual effects. Concerning hormones, synergism happens when two hormones must be present for the full expression of an effect. That is, two hormones act for a certain purpose.

Example: FSH (follicle stimulating hormone) and estrogen cause oocyte maturation, but this only occurs if neither acts in isolation.

8 0
3 years ago
Who is credited with creating the first accurate model of dna
riadik2000 [5.3K]
<span>The two scientists, who are credited with creating the first accurate model of DNA are JAMES WATSON and FRANCIS CRICK. The success that these two scientists achieved concerning DNA structure is based on the works of other scientists, who have carried out series of research on DNA. The real proof of Watson - Crick model for DNA was released in 1982, this was after the B form of DNA was crystallized and its X ray pattern was solved.</span>
4 0
3 years ago
Read 2 more answers
Complete the sentence. The DNA strands are coiled around ________. This allows DNA to be packaged very efficiently.
Pepsi [2]

Answer:

a. Proteins

Explanation:

Chromosomes are made up of DNA tightly coiled many times around proteins

3 0
2 years ago
Read 2 more answers
Cell division is preceded by two growth phases. Besides growth, both G1 and G2
Leviafan [203]

Answer:

A

Explanation:

a. contain checkpoints that determine if the cycle will continue.

b. help move chromosomes to the new daughter cells.

c. produce more chromosomes before the cell divides.

d. grow and produce enough cytoplasm to fill two cells.

<em />

<em>The correct answer would be that G1 and G2 contain checkpoints that determine if the cycle will continue or otherwise.</em>

The cell cycle generally has three checkpoints that happen at G1, G2, and M phase of the cycle.

At G1 checkpoint, the integrity of the DNA of the cell is assessed to ensure that there are no damages and other conditions such as size and energy reserve are checked.

At G2 checkpoint, the cell is assessed for proper chromosome duplication to ensure that there are no mistakes or damages. The size of the cell and the amount of protein are also checked to ensure that the cell is ready for the active division phase.

At M checkpoint, correct attachment of the spindle fiber to the kinetochore of the chromosomes is checked. This checkpoint is also known as the spindle checkpoint and it happens towards the concluding phase of the metaphase stage.

<u>The correct option is therefore, A.</u>

6 0
2 years ago
Other questions:
  • Are we ready to try cloning with humans?
    7·2 answers
  • Which type of muscle cell propels substances or objects through internal passageways? skeletal. cardiac. smooth. striated.
    9·1 answer
  • Which habitat would have the least variation in its salinity
    9·1 answer
  • In both mitosis and meiosis___ must occur for the process to continue to completion
    11·1 answer
  • An organism that can produce its own energy using sunlight is called a(n)
    9·1 answer
  • Which substrate is digested by the enzyme protease?
    7·2 answers
  • Han’s younger sister is riding her tricycle in a straight line. Her speed is 2.5 m/s. After 5 seconds, she comes to a stop. What
    8·1 answer
  • From food.<br> Respiration is the process in which organisms use oxygen to release from ____ food
    15·1 answer
  • How does the Grand Canyon help us understand about how the Earth’s Surface Changes AND why there are different types of rocks?​
    10·1 answer
  • What does xylem carry up the plant?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!