Two distinct bands appear in a single lane at the completion of an SDS-PAGE analysis of an unknown protein. Select one: a. These bands represent two subunits of a homodimer. b. Each band represents a different sized subunit of a multimeric protein. c. Each band represents a protein subunit with different charge to mass ratio. d. These bands represent two subunits of a heterodimer. e. These bands represent two separate subunits of identical size.
Answer:
b. Each band represents a different-sized subunit of a multimeric protein.
Explanation:
SDS-PAGE analysis allows the separation and discrimination of proteins according to their molecular weight. The technique separates proteins in an electromagnetic field.
The SDS-PAGE technique makes proteins move in solid support -gel- by the action of the electric field. The distance reached by each protein is proportional to their molecular weight. The protein separation from a mixture results in bands that reflect their size.
SDS is a detergent that denaturalizes the protein and sets a relation charge size, such as that the motion of the protein in the gel is proportional to its weight. The bigger the protein is, the stronger interaction with the polyacrylamide gel there will be. The speed of displacement in the electromagnetic field is inversely proportional to the protein size.
She forms a hypothesis that the color reaches the flower through the stream.what should maria do to confirm the hypothesis
Once action potential is reached, the gated ion channel open to allow ___ to rush into a neuron
A) sodium ions
B) calcium ions
C) potassium ions
D) ATP
Given a parent genotype of Bb, what are the possible gametes that they can produce?
Assuming both parents have genotype Bb, this would lead to the Punnett square (in this case a monohybrid cross) as shown in the image below. We have four outcomes, three of which are unique. Those offspring genotypes are: BB, Bb, and bb.
An offspring with B or b on its own is not possible because both parents contribute genes.
A fossil contains 1/16 of the carbon -14 it began with. How old is the fossil?
Answer:
1/30
................
12. The respiratory system includes the lungs, what level of body organization are the lungs
a. Tissue
b. Organ
c. Organ System
d. Cells
Can some plaz help me with this project ASAP WILL GIVE BRAINLIEST IF ACTUAL EFFORT PUT IN AND DECENT LENGTH
Population Growth
Project: Analyzing Factors That Affect Carrying Capacity and Biodiversity
In this assignment, you will use simulations to analyze how climate, resources, and habitat size affect
carrying capacity. You will then look at another simulation to analyze the effects of certain factors that
affect biodiversity and populations. Finally, you will write and revise a conclusion on how human activity
affects biodiversity.
Background Information
Population growth is the change in size of a group of organisms of the same species over time. It is
affected by four factors: birth rate, death rate, immigration, and emigration.
Carrying capacity is the maximum total population that an area can support. Carrying capacity limits
population growth and is affected by competition for food, water, shelter, or mates, and threat of
predators, disease, and parasites. Carrying capacity may be affected by one or a combination of these
factors.
Biodiversity is the total variety of organisms that live in the biosphere. Biodiversity is affected by the loss
of habitat, introduction of invasive species, pollution, and/or human activities.
Answer:
Question 1: How does increasing the size of the habitat affect carrying capacity? Explain your answer. Recall the scenarios: 0–15 years, Little land; 15–30 years, Moderate land; 30–45 years, Ample land.
Population numbers self-regulate to some extent since mortality rise when a population exceeds its carrying capacity. Carrying capacity is affected by disease, competition, predator-prey interactions, resource usage, and the number of populations in an ecosystem.
Explanation:
Question 2: How and why did changes in the environmental conditions affect carrying capacity in this scenario? Recall the scenarios: 0–15 years, Harsh winter; 15–30 years, Harsh winter and Cold spring; 30–45 years, Harsh winter, Cold spring, and Hot summer.
The carrying capacity of an environment is also affected by conditions within or adjacent to it. If the environment is adjacent to a human population, for example, this may have an impact on its carrying capacity. Pollution can also have an impact on the carrying capacity of an environment.
Question 3: If there were no other changes in the habitat, would the value under “Larger Than Ample” be correct? Why or why not
Climate change isn't only about global warming. While it is true that temperatures would rise during the summer months, it is also feasible that the winter months would be even colder. As a result of this effect, the winters will be exceptionally cold from year 0 to 15.
Question 4: Suppose there were changes in the habitat that caused this actual value. What might a combination of those changes be
Assume that the climate in a habitat shifts. The amount of precipitation reduces by 20% over time. It will have an impact on the habitat because species that have adapted to drier climates will supplant those that are less suited to the new climate. This best circumstance explains the cause for adaptation, and those that adapted rapidly will replace those who found it difficult to adapt, resulting in the extinction of species as those who can thrive will be able to cope with the rapid shift in the environment. The most fittest survive in the new environment, according to Charle's Darwin thesis.
Question 5: How would you describe the effect of a 1°C increase of temperature on the biodiversity of the habitat in terms of number of populations and number of individuals in the populations? Use evidence from your graph and table to support your answer
The graph and table in the supplied question were not provided, nor could they be found anywhere, hence the question was answered based on prior knowledge. Earth's species can adapt to their surroundings, however adaptation in organisms can take thousands to tens of thousands of years. However, for the last 200 years, a consistent rise in temperature has been recorded.
The thermal limits of species residing in the tropics, equator, and poles have already been altered. If the global average temperature rises by one degree Celsius, the number of people on the globe will drop. The population of a species will decline as the number of individuals decreases.
I have the biology STAAR test tomorrow what facts and tips would help me pass it please help
Answer:
eat breakfast+stay posative+read a book 20min before bed+and study things that you things will help you get ready
Explanation: YOU GOT THIS!!!!
How many rings of cartilage make up the trachea?
1. 00
2. 50
3. 10
4. 20
PLEASE HELP I NEED THIS TO PASS
Some organisms have a large geographic range. For example, the Norway rat lives on every continent except Antarctica A population of Norway rats is the number of rats in one particular area. Do you think it's scientifically possible for a population of Norway rats in North America to carry different genetic mutations than a population of Norway rats in Africa? Do you think it's possible that they carry some of the same mutations? What types of information can scientists learn by studying the genomes of these two populations of rats?
Which is a characteristic that distinguishes members of the
plant kingdom from members of the animal kingdom?
Select one:
A. Plants store genetic information in the nucleus of their cells
B. Plants are motile primary consumers
C. Plants are multicelular
D. Plants are autotrophic
Answer:
D. Plants are autotrophic
Explanation:
Both plants and animals are eukaryotic, meaning they contain a nucleus with genetic information, so that crosses out A. I don't know what motile primary consumers are. Assuming, they're primary consumers, primary consumers are those that eat producers, so in this case, this would elminate B. Both plants and animals are multicellular. Plants ARE autotrophic, meaning they produce their own food. Animals, however, have to get their own food, either by hunting or scavaging.Can someone please put this in there own words?
Thank you.
For example, plasma membrane proteins carry out functions as diverse as ferrying nutrients across the plasma membrane, receiving chemical signals from outside the cell, translating chemical signals into intracellular action, and sometimes anchoring the cell in a particular location.
Answer:
All cells have plasma membranes. Can molecules enter and leave the cell? Yes. The plasma membrane (also called the cell membrane), is a lipid barrier where molecule organelles live. The golgi ( a cell organelle) helps move the proteins across the plasma membarane. Proteins cannot move through the plasma membrane barrier by themselves because they are not small enough like water.
Explanation:
Hope this helps. :) P.S. Can I be marked brainliest . . . ? :)
The peace treaty which ended French control over Canada in 1763 was signed in:
Answer:
February 10, 1763.
Explanation:
What happens to bacterial cells when human genes are inserted
What are the four different types of deserts?
Answer:
Explanation:
Name Type of Desert Location
Antarctic Polar Antarctica
Arctic Polar Alaska, Canada, Greenland, Iceland
Sahara Subtropical Northern Africa
Answer:
1) hot and dry deserts or subtropical deserts
2) semi-arid deserts
3) coastal deserts
4) cold (or polar) deserts
Hola soy chica ando hot... quien se apunta
Answer:
yo quiero paso numero +503 61656558
how do plant tissue systems work together to maintain homeostasis
13 The environment can affect a person's health. Which of the following diseases
would be most adversely affected by cigarette smoke?
F emphysema and Parkinson's disease
Gasthma and gonorrhea
H asthma and Parkinson's disease
I emphysema and asthma
1. What is most likely to cause a mutation?
A) Substituting a nucleotide during replication
B) Copying a nucleotide during replication
C) Translation of a mRNA strand
D) Transcription of DNA
Which factors contribute to changing igneous and sedimentary rocks into metamorphic rocks?
weathering
erosion
heat
deposition
pressure
Answer:
Pressure and Heat.
Explanation:
Which Cell Parts are ONLY in Plant cells?
Answer:
Cell Wall, Choroplast.
Explanation:
b. Earth's thermohaline circulation moves heat around the planet, as can be seen by the warmer
climate in England due to the Gulf Stream. (2 points)
True or false ?
Does one disease happen in the circulatory system which can affect homeostasis?
Answer:
Your circulatory system delivers oxygen-rich blood to your bones. Meanwhile, your bones are busy making new blood cells. Working together, these systems maintain internal stability and balance, otherwise known as homeostasis.
Explanation:
Answer:2
Explanation: yes more than one disease can happen in the circulatory system
When are chromosomes present in cells?
A. Just before and during DNA replication
B. Never
Answer:
A
Explanation:
Answer:
prophase, in prophase the mitoic spindle forms and the chromosomes condense. Prophase is the first stage before cell division (mitosis) and chromosomes will be present in the cell.
DNA: TAC GCG TAC CGG ATC
mRNA:
Amino acids: HELP[
Answer:
AUG CGC AUG GCC UAG
Explanation:
Replace thymine (T) with uracil (U)
PLEASE ANWSER ASAP ILL GIVE BRAINLIEST
Answer:
puddle, rain, and cloud
the puddle will heat up and evaporate causing it to go into the sky
rain is when evaporated water condensates and forms a cloud once the water drops get to heavy they fall
and the cloud is caused by evaporated water condensating and thats when the water starts to cool down
What do I write I need help on this and my teacher is not here
Answer:q
Explanation:
A dog, Skipper, is roaming around the neighborhood. Skipper passes one of
his favorite spots and lifts his leg to urinate on a fire hydrant. Three
systems at work are:
Answer:
5. Muscular
6. Skeletal
12.Excretory
Explanation:
He lifts his leg, meaning his using skeletal and he is removing waste from his body using muscular & excretory.
Anyways, just wanted to let you I think you're in my class. We go to the same school. Have a great summer break !
type fghj in 3/7 block so i know you saw my message :)
The chart below is a taxonomic key for the fictitious insect genus
Problematica. To which species does the insect in the picture belong?
Select one:
A. Problematica differensis
B. Problematica brancus
C. Problematica cantrellis
D. Problematica alva
What percentage of the global water supply is fresh water? 6 percent 35 percent 1 percent 10 percent
Answer: i know it woluld be 48 because you add all the numnbers that you provided then you subtract it from 100 and get 48%
Explanation:
pls mark brainliest