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kiruha [24]
2 years ago
14

A protein isolated from a thermophilic bacterium shows a molecular weight of 160 kD when eluted from a size-exclusion chromatogr

aphy column, but when the purified protein is run on an SDS-PAGE gel, a single band of 80 kD is observed. These results tell us that the protein is eluting from the size-exclusion column as a
Biology
1 answer:
Amiraneli [1.4K]2 years ago
4 0

Answer:

as a dimer consisting of two identical monomers (80 kDa subunits) that are packed together via hydrophobic interactions

Explanation:

SDS-PAGE (sodium dodecyl sulphate–polyacrylamide gel electrophoresis), is an electrophoretic methodology used to separate proteins that have a molecular weight between 5 to 250 kDa. SDS is a well-known ionic detergent that is able to break hydrophobic interactions and hydrogen bonds. Moreover, size-exclusion chromatography is a filtration technique that separates molecules in solution according to their molecular size. In this case, SDS-PAGE showed that the target protein is composed of two identical subunits (monomers) of 80 kDa each, which were separated by the detergent and formed one single band in the SDS-PAGE gel.

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The points of muscle attachment are known as the
Alik [6]

Answer:

Origin and Insertion

Explanation:

The origin is the point of attachment of a muscle that remains relatively fixed during contraction.

The insertion is the point or mode of attachment of a skeletal muscle to the bone or other body part that it moves.

3 0
2 years ago
A 3 column by 5 row table. Column 1 is titled Activity with the following entries: use of materials in production, release of ca
Elena-2011 [213]

Answer:

Based on the data presented, PLASTIC

bags have less impact on Earth’s resources. Even though PAPER

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Explanation:

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2 years ago
On ten acres of native forest there are eight white-tailed deer, seven coyotes, 45 armadillos, and 231 loblolly pine trees. Whic
Natasha2012 [34]

loblolly pine trees

Explanation:

Population density refers to the amount of organisms living in a particular area:

            Population density = \frac{number of organisms}{Area}

Area of the forest = 10acres

Population densities of:

  White-tailed deer = \frac{8 white tailed deer}{10acres}

                                 = 0.8white tailed deer/acres

   Coyotes = \frac{7 coyotes}{10acres}= 0.7coyotes/acres

   Armadillos = \frac{45 armadillos}{10acres} = 4.5armadillos/acres

   loblolly pine = \frac{231loblolly pine trees}{10acres} = 23.1loblolly pine trees/acre

The population with the highest density is that of the loblolly pine trees with 23.1 of the trees in an acre.

learn more;

Population brainly.com/question/13181732

#learnwithBrainly

5 0
2 years ago
Selective pressures created by environmental factors can lead to success of __________ individuals in a population. A) asexual B
Leona [35]
Selective pressures created by environmental factors can lead to success of <span>mutual individuals.  So it is D</span>
8 0
2 years ago
Read 2 more answers
Some organelles, such as the endoplasmic reticulum and Golgi bodies, have a large and folded structure. What is an advantage of
bekas [8.4K]

Answer:

Explanation:

In endoplasmic reticulum, many folds leads to an increase in surface area for ribosomes to attach which allows for protein synthesis to occur at an efficient rate.

mitochondria has two membrane,

It has an inner membrane which is folded inside the other. The fold create cristae, which is the site for a portion of cellular respiration.

The folds also enables a large surface area that makes chemical process to occur in an efficient way.

3 0
3 years ago
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