Answer:
eye piece lense
objective lens
A scientist runs an SDS-PAGE experiment two separate times on a protein with a molecular weight of 200 kD. For the first experiment he treats the protein with SDS only and for the second experiment he treats the protein with both SDS and a reducing agent. If the first gel yields one band showing a molecular weight of 200 kD and the second run yields one band showing a molecular weight of 25 kD, the researcher should conclude that
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.
How Green Plants Make Food
(a) ______ from the sun, (b) ______, the green coloring in the leaf of the plants combine with (c) _________ from the soil and (d) _________from the air to produce (e) ________ in the leaf. The air that enters the leaf contains carbon dioxide and oxygen. But the leaf needs only the carbon dioxide. Thus, (f) _________is given off as waste product.
Answer:
BRUU HELP IT SAYING I NEED BRAINLY PLUS
Cellular Respiration and Energy
Answer:
answers answers answers
Explanation:
1. carbohydrate
2.store energy
3.chemical energy
4. food
5. glucose
6. cellular respiration
7. ATP
4. Calculate the kinetic energy of a Hollywood star running from the paparazzi. The star's mass is 45.0 kg, and the star is running at
a velocity of 3.00 m/s.
a) 203 J
b) 303.75 J
c) 405 J
d) 67.5 J
Answer:
i do not know
Explanation:
Answer:
A
Explanation:
=122
The phase of mitosis that is characterized by the disappearance of the nuclear membrane is
Answer:
Prometaphase (late prophase)
Explanation:
Mitosis is the kind of cell division in which two genetically identical copies of a cell is formed from a cell. Mitosis comprises of stages which include prophase, metaphase, anaphase and telophase. Each phase is characterized by specific occurrences that all work together to achieve the main goal of forming two daughter cells.
According to this question, PROPHASE stage is the stage characterized by the condensation of chromatids into chromosomes, the disappearance of nucleolus and BREAKDOWN of NUCLEAR MEMBRANE.
name two characteristics that all these animal share ( frog, buck, doves, lizard, dragonflies )
Answer:
They all have a beating heart, and a brain
Explanation:
Beating the heart and a brain is the two characteristics that all these animal shares frog, buck, doves, lizard, and dragonflies.
What are the different characteristics of animals?Frogs are cold-blooded animals and are classified into the class of amphibians, they are vertebrate animals with backbones.
The lizard was included in the class reptilia, they are creeping and burrowing terrestrial animals situated on the land, and also have scales on their body. Similar to the frog, they are also cold-blooded animals having a backbone.
The major classification of the animals is done by the presence of a backbone, which differentiates them in vertebrates and invertebrates.
Therefore, in the given question all the animals share common feature of having a heart and brain.
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19. Fresh poultry should be rejected when:
A. It has been shipped in plastic wrap
B. It is slightly sticky to the touch
C. There is no discoloration
D. The receiving temperature is 38°F
Answer:
B
Explanation:
Fresh poultry should be rejected when the receiving temperature is 38°F. Therefore, option (D) is correct.
Poultry must be stored and transported at or below 40°F to guarantee food safety and inhibit the proliferation of harmful bacteria. Exposure to unsafe temperatures during storage or transportation can increase the risk of bacterial contamination and foodborne illness if the receiving temperature exceeds the threshold.
Indicators like plastic wrap during shipment, slight stickiness, or lack of discoloration do not necessarily imply safety concerns or spoilage with fresh poultry, as mentioned in the other options.
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Which of the following is not an example of waking conscious
mind?
Select one:
a. Solving a math problem
b. Driving a Lamborghini
c. Writing an exam
d. Taking a power
nap
b. driving a Lamborghini
Answer:
option D is correct
Taking a power nap
hope it helps
which are characteristics of epithelial cells? Select two options.( Answer Needed ASAP)
Answer:
found lining many areas that contact the external environment
plays a role in protection
Explanation:
Explanation: Epithelial tissue is composed of cells laid together in sheets with the cells tightly connected to one another. Epithelial layers are avascular, but innervated. Epithelial cells have two surfaces that differ in both structure and function.
ROCK
Created from the
- of
in ______ over time.
Help me pls
Answer:
Sedimentary Rock:
Created from the deposition of sediment
in layers over time.
Explanation:
With the pressure that is created from the layers of rock, this causes the creation of Sedimentary rock.
Hope this helps :)
The diagram below shows the crossing of a tall plant in a short plant tall is dominant which of the genotypes of the parents plants
What are Purkinje fibers?
special valves that relay electrical impulses to
the ventricles, which cause contraction
special fibers that relay electrical impulses to
the atriums, which cause emptying
special valves that relay blood to the
ventricles, which cause contraction
special fibers that relay electrical impulses to
the ventricles, which cause contraction
DO NE
Answer: It's D aka Special fibers that relay electrical impulses to the ventricles, which cause contraction.
Explanation:
how does the process of translation convert information from a dna code to an rna code?
a. from a DNA code to an RNA code
b. from an amino acids code to a nucleic acid code
c. from an RNA code to a DNA code
d. from a nucleic acid code to an amino acid code
Answer:B
Explanation:
The nitrogen bases in DNA code for the sequence of amino acids that make up a protein
Answer:
its B
Explanation:
Which sex would you expect to be the choosiest?
Answer:
Feamles but it depends what they're choosing from
Explanation:
Which one of the following does not have its outer orbit full?
a. argon
b. neon
c. krypton
d. lithium
Answer:
Lithium
Explanation:
It is group I, not group 0.
What factor causes global wind patterns
Answer:
the Coriolis effect
Explanation:
the earths rotation causes wind also known as the coriolis effect
Answer:
unequal heating of Earth's surface by the Sun
Explanation:
A _____ is exhibited only when two are present together.
recessive allele
hybrid
purebred
dominant allele
Answer:
I believe it's a dominant allele
Explanation:
Recessive allele means one is present... A hybrid is the result of two different breeds breeding. A purebred is an organism that always passes down the same genetic makeup.
WILL GIVE BRAINLIEST!!!!!!
the last one I guess
Explanation:
i checked internet
The phase of mitosis that is characterized by the arrangement of all chromatids along the equator of the cell is called
3. Microphages are a type of white blood cells and part of the immune system's response to defend the body against viruses. What do microphages do?
Select all that apply.
Which of the following are true about a block of ice at -10°C as you continue to apply heat.
Its temperature will rise continuously until it completely melts.
Its temperature wil rise until reaching o°C.
Its temperature will not rise above -10°C until it melts. Its
temperature will remain at 0 G until all the ice melts.
PLEASE HELP ME PLEASEE!
In which direction is heat transferred?
thermal energy or heat naturally flows in one direction only: from hot toward cold. Heat moves naturally by any of three means.
hope it helps.
The normal real behavior of a person or an animal can be
understood by naturalistic observation.
Select one:
True
False
The normal real behavior of a person or an animal can be
understood by naturalistic observation.
A cluster of cases of legionellosis have occurred in your neighborhood. People with the illness have cough, fever, shortness of breath, chest pain and sometimes diarrhea. The illness is caused by the bacterium Legionella pneumophila, a facultative intracellular parasite that survives in certain ameba. The organism has an absolute requirement for L-cysteine. Typically, the organism is grown on buffered charcoal yeast extract (BCYE) agar. In some labs, samples containing suspected L. pneumophila are cultured on traditional BCYE medium as well as BCYE medium lacking L-cysteine. How would L. pneumohila be identified in this situation
Answer:
The correct answer is - comparing the presence of an essential component of the L. pneumophila that is cysteine.
Explanation:
As we know that L-cysteine is essential for the organism L. pneumophila to grow its colonies. The identification is easy in this situation by comparing the two cultured on the traditional BCYE medium and BCYE medicum without L-cysteine.
Colonies that grow on traditional BYCE medium are likely L. pneumophila as they required L-cysteine but not on BYCE medium lacking cysteine.
Write one scientific question about the organism in
the photo. Sunflowers
Answer:
how do sunflowers disperse their seeds
Explanation:
Introspection is one of the many sleeping disorders experienced
by people with sleep apnea.
Select one:
True
False
Answer:
The statement is false.
Explanation:
Sleep apnea is a respiratory disease characterized by the fact that people who suffer from it habitually snore, have repeated stops of breathing (apneas) and drowsiness during the day. As a consequence, patients who suffer from it cannot rest well during the hours of sleep.The obstruction of breathing causes a decrease in oxygen levels in the body, the persistence of this lack of oxygen could cause pulmonary hypertension and a future right-sided heart failure or myocarditis. Introspection, on the other hand, is the immediate reflective capacity of the human mind to know its own states; it is not associated with sleep apnea.
which is false?
- digestion begins in the mouth
- The small intestine digest carbohydrates
- The large intestine absorbs amino acids
- the stomach involves mechanical digestion
Answer:
false...................
Answer:
The large intestine absorbs amino acids
PLZ HELP ASAP
MARKING
Which characteristic of life best describes the process of homeostasis?
responding to the environment
reproducing
growing and developing
using energy
Answer
A. responding to the environment
Answer:
and using energy
Explanation:
the guy on ed told me