Section 39.2 discussed the mechanism by which threonyl-tRNA synthetase attaches threonine to the proper tRNA while preventing the attachment of the similar amino acids valine and serine. Using this as a model, explain how an isoleucyl-tRNA synthetase might prevent the incorrect addition of the similar amino acids leucine and valine to its target tRNA.
Valine could fit in the activation site.
[ Choose ] FALSE TRUE
Isoleucine could fit in the activation site.
[ Choose ] FALSE TRUE
Leucine could fit in the activation site.
[ Choose ] FALSE TRUE
Valine could fit in the editing site.
[ Choose ] FALSE TRUE
Isoleucine could fit in the editing site.
[ Choose ] FALSE TRUE
Leucine could fit in the editing site.

Answers

Answer 1

Answer: Just so know im not fully sure with this answer

false

true

false

false

true

Explanation:

Answer 2

The prevention of incorrect addition of the similar amino acids leucine and valine to its target tRNA are:

A. Valine- false.

B. Isoleucine - true.

C. Leucine - false.

D. Valine - true.

E. Isoleucine - false.

F. Leucine - true.

What are amino acids?

Amino acid are the basic unit to make proteins. There are total 20 amino acids are present. They are made up of amino and carboxylate functional group.

Thus, the correct option is A. Valine- false.

B. Isoleucine - true.

C. Leucine - false.

D. Valine - true.

E. Isoleucine - false.

F. Leucine - true.

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Related Questions

(a)
2.
The diagrams below show the patterns produced on an oscilloscope by three
different sound waves.
M
А
B
с
(0)
Which two waves have the same loudness?
Write the letters.
and

Answers

Because it has to be that way

In the diagram attached, the option that shows the two waves have the same loudness is option A and C.

What is the statement about?

Note that in the diagram The letters may be in either order and both the letter and the correct explanation are need for the marking of the  their amplitudes as they are the same.

Therefore, In the diagram attached, the option that shows the two waves have the same loudness is option A and C.

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Which of the following is true about science and technology?
A.
Advancements in science cannot lead to advancements in technology, and technological advancements cannot lead to scientific advancements.

B.
Advancements in science can lead to advancements in technology, and technological advancements can also lead to scientific advancements.

C.
Advancements in science can lead to advancements in technology, but technological advancements cannot lead to scientific advancements.

D.
Advancements in science cannot lead to advancements in technology, but technological advancements can lead to scientific advancements.

Answers

B - Advancements in science can lead to advancements in technology, and technological advancements can also lead to scientific advancements.

The water cycle summarizes the processes that take place when water moves through the hydrosphere. The water cycle is shown here:

Answers

Explanation:

water moves through the hydrosphere in a cycle. Water collects in clouds, then falls to Earth in the form of rain or snow. This water collects in rivers, lakes and oceans. Then it evaporates into the atmosphere to start the cycle all over again

What are the total number of subatomic particles found in the electron cloud of an Aluminum atom?

Answers

Answer:

13 electrons pls pls mark me branilest

What describes how a large host cell and ingested bacteria could easily become dependent On one another for survival resulting in a permanent relationship

Answers

Answer:

The endosymbiotic theory describes how a large host cell and ingested bacteria could easily become dependent  on one another for survival

Explanation:

All the biological macromolecules contain carbon hydrogen and oxygen however most do not contain nitrogen. The category that contains nitrogen are

Answers

Answer:

you mean science.

Explanation:

Answer:

B) Proteins

Explanation:

Proteins are the only biological macromolecules that does contain nitrogen is proteins. Carbhohydrates, Unsaturated fats, lipids all do not contain nitrogen

11. (a) Define the following terms (i) Spermatogenesis (ii) Oogenesis​

Answers

Answer:

A. answer

Spermatogenesis is a process farming of spermatoza from germ cell(spermatogonium/spermatogonial) that happened in seminiferous tubules of the testis.

B. answer

oogenesis is the formation of ovum or eggs,starts in the ovaries of the foetus before birth.

Why is it difficult to get people to follow regulations protecting a common?

Most people are not directly impacted by polluting a common.
People care more about money than the welfare of others.
The rules are too strict and prevent meeting basic needs.
Common area resources belong to everyone.

Answers

Answer:

I think it is...

A. Most people are not directly impacted by polluting a common.

Hopefully, this helps you!!

[tex]AnimeVines[/tex]

A lot of rules are dangerous, unnecessary, a violation of personal liberties, inconvenient, and more often than not, only serve to line the pockets of filthy politicians. The rules are too strict and prevent meeting basic needs. Thus the correct option is C.

What is personal liberties?

The personal liberty is the freedom of the person to do as he pleases limited only by the authority of politically organized society to regulate his action to secure the public health, morals, safety.

Rules should be convenient to the people and there should be alternate options, if person do not follows that rules in a country such as warnings for the first time and should give proper time to implementation on regulation.

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The glutes maximus is located superior to which muscle?

Answers

Answer: buttocks

Explanation:

the gluteus maximus muscle is located in the buttocks and is regarded as one of the strongest muscles in the human body. It is connected to the coccyx, or tailbone, as well as other surrounding bones. The gluteus maximus muscle is responsible for movement of the hip and thigh.

What are some ways of reducing the effects of global warming​

Answers

Stop wasting food
Stop littering
Recycling
Reduce
Reuse
Use bicycles instead of vehicles

Arrange the rock layers from oldest to youngest re-examine The rock outcrops if you need to. Record the order in the student guide.

Basalt

Limestone with unknown fossil

Sandstone with trilobite

Shale with ammonite​

Answers

Answer:

Youngest to Oldest

Shale with ammonite

Limestone with unknown fossil

Basalt

Sandstone with trilobite


(1) Response to stimuli: Does the entity sense and respond to environmental change?
They just can reproduce when they are in the host

Answers

Answer:

Organisms need to detect and respond to changes in their internal and external environment. This is because the conditions inside our body must be carefully controlled for it to function effectively and survive. The control systems that allow organisms to respond to changes are incredibly important.

All control systems include:

Cells called receptors, which detect stimuli (changes in the environment).

The coordination centre, such as the brain, spinal cord or pancreas, which receives and processes information from receptors around the body.

Effectors which bring about responses, and restore optimum levels, such as core body temperature and blood glucose levels. Effectors include muscles and glands, and so responses can include muscle contractions or hormone release

what does it mean if a solution has a ph of 3, 12, 2, 7, or 9

Answers

Acidic, basic, acidic, neutral, basic


1. Is it advisable to switch the microscope on while looking through the eyepiece?

Answers

Answer:

yes ithink its important to switch on

The flow of genetic information in molecular biology follows the following path, A) DNA is translated into protein B) DNA is transcribed into RNA which is translated into protein C) DNA is translated into RNA which is transcribed into protein D) RNA is transcribed into protein

Answers

Answer:

The Correct answer is DNA is transcribed into RNA which is translated into protein

Explanation:

The genetic information is unidirectional, from DNA to proteins. First, DNA is transcribed into an intermediary RNA molecule is known as transcription (TC), a further messenger RNA molecule (mRNA) is translated into a corresponding sequence of amino acids (translation). This concept of information flow is known as the central dogma of molecular biology.

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In the following scenarios, identify the independent variable, and the dependent variable.
1. Endurance in high altitude mountain climbers with and without the use of supplemental O2.
a. Independent Variable:
b. Dependent Variable:
2. Weight loss in subjects eating low carbohydrate diets.
a. Independent Variable:
b. Dependent Variable:
3. The number of hours spent studying biology each week and grades earned on biology exams.
a. Independent Variable:
b. Dependent Variable:
Suggest a control group for each of the following experiments.
4. Cancer rates in students who smoke cigarettes are closely monitored over a 5-year period.
Control Group:
5. Weightlifters are given 400 mg of creatine phosphate every day for 90 days. At the end of the 90-day period each participant is evaluated for improvements in strength.
Control Group:

Answers

The independent variable produces an effect on the dependent variable, while the control variable produce no change on the results. In the exposed situations, the independent variables are supplemental O₂, low carbohydrate diets, hours spent studying biology. The dependent variables are Endurance of climbers, Weight loss, grades earned on exams. And the control variable might be time.

--------------------------------------

During an experiment, you need to consider all the variables involved.

Independent (manipulated) variable: Refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is controlled and modified to analyze how another variable responds to it. The researcher changes the independent variable to observe its effects on the dependent variable. Usually, the independent variable is represented by the X letter. Dependent variable: Refers to the variable, which response depends on any change in the independent variable. It represents a quantity of something which value depends on how the independent variable is modified. The change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. It is usually identified by the letter Y. Controlled variables are kept constant in the control groups and the experimental groups. Unlike the independent variable, the controlled variables do not influence the results. These variables do not affect the response of the dependent variable.

1. Endurance in high altitude mountain climbers with and without the use of supplemental O2.

a. Independent Variable: supplemental O2  

b. Dependent Variable: Endurance in mountain climbers

The endurance of climbers will depend on the use of supplemental O₂. If they use supplemental oxygen, they will have more resistance than if they do not use it. Supplemental Oxygen is influencing the climbers´ endurance.  

2. Weight loss in subjects eating low carbohydrate diets.

a. Independent Variable: low carbohydrate diets

b. Dependent Variable: Weight loss

Having a low carbohydrate diet will lead the subjects to lose weight. Any change in the quantity of the carbohydrate will affect the individuals' weight.  

3. The number of hours spent studying biology each week and grades earned on biology exams.

a. Independent Variable: hours spent studying biology

b. Dependent Variable: grades earned on exams

The more hours students spend studying, the higher grades they get on biology exams. The grades depend on the number of hours used to study and are proportional to this variable.  

4. Cancer rates in students who smoke cigarettes are closely monitored over a 5-year period.

Control Group: Time → Five years

Time is constant in all the study groups. Independently of the number of cigarettes smoked, or the frequency in which subjects smoke, all the groups will be analyzed for 5 years, and this time-lapse is constant.  

5.Weightlifters are given 400 mg of creatine phosphate every day for 90 days. At the end of the 90-day period each participant is evaluated for improvements in strength.

Control Group: Time → 90 days

Time is constant in all the study groups. Independently of the creatine phosphate mg provided to weightlifters, individuals will be analyzed for 90 days, and this time-lapse is constant.

---------------------------------------------------

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Instructions for making proteins are found in?

1 ribosomes
2 DNA
3 RNA
4 enzymes

Answers

Answer:

Ribosome

Explanation:

The ribosome reads the instructions found in the messenger RNA molecules in a cell and builds proteins from these mRNAs by chemically linking together amino acids (these are the building blocks of proteins) in the order defined by the mRNA.

Mark my answer as the brainliest

Ribosomes

It sends messages to the RNA, therefore the RNA doesn’t create proteins, and DNA is genetic material

What is a flock of ravens called ?

Answers

Answer:

an unkindness or conspiracy of Ravens

A flock of ravens is called an unkindness

Which phrase describes air pressure?

decreases with denser air
decreases as altitude decreases
equals mass divided by volume
decreases as a result of fewer air particles pushing down

Answers

decreases as a result of fewer air particles pushing down

The phrase which best describes air pressure is: decreases as a result of fewer air particles pushing down.

What is pressure?

Pressure can be defined as a measure of the force exerted per unit area of an object or physical body. Thus, it is usually measured in Newton per meter square and calculated by using this formula:

[tex]P = \frac{F}{A}[/tex]

Where:

P is the pressure.F is the force.A is the area.

The types of pressure.

In Science, there are different types of pressure and these include the following:

Hydrostatic pressureOsmotic pressure Filtration pressureAtmospheric (air) pressure

In conclusion, air pressure is also referred to as atmospheric pressure and it generally decreases due to fewer air particles pushing down on the surface of planet Earth.

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Please select the correct answer

Answers

Answer:

2nd option is correct..

Explain the difference between asexual and sexual reproduction

Answers

Answer:

Asexual reproduction is when a living thing reproduces with only a single parent. Sexual reproduction involves two parents and chromosome change.

Explanation:

Ex of Asexual reproduction: Ferns, bacteria, animals, etc.

Ex of Sexual reproduction: Animals, some plants, etc.

correctly identifies at least one item that produces each of the five percussive tones (resonance, hyperresonance, dullness, flatness, and tympany

Answers

medsim respiratory system

Answer:

• pulmonary resonance: lungs are 99% air

• percussion notes:

Resonance : low, hollow, lasts , long

Hyperrsensonance: higher, booming, lasts long

Flatness: or Dullness : soft short

Tympany: high, drum-like

Explanation:

hope this helps :))

Internal and external cell cycle regulators are -----

1 growth factors
2 apoptosis
3 proteins
4 chromosomes

Answers

Growth factors i think…

Meaning of chromatos
A. color writing
B. Color forming
C. Color spreading
D. None of these

Answers

It literally means color forming

chromato meaning

Chromato- is a combining form used like a prefix meaning “color.” It is used in many scientific and medical terms. In cell biology, chromato- specifically refers to chromatin, “the readily stainable substance of a cell nucleus, consisting of DNA, RNA, and various proteins, that forms chromosomes during cell division.”

In a dichotomous classification system, __________.
a) a population is repeatedly divided into two parts until a description identifies a single member
b) A population first divided into two parts, then three parts, and then four parts, until a description identifies a single member.
c) dichotomous keys are called natural keys
d) A population is repeatedly divided into three parts until a description identifies a single member.
e) A population is repeatedly divided into four parts until a description identifies a single member.

Answers

b) A population first divided into two parts, then three parts, and then four parts, until a description identifies a single member.

Hope it will help you ❤️

Other kinds of white blood cell have a different way of killing
pathogens.Explain how they do this.

Answers

Answer:

White blood cells defend against pathogens in three ways. Firstly they release anti-toxins, which neutralize the effect of toxins produced by bacteria. The second way they destroy pathogens is by engulfing/ingesting them.

Hope this helps! Don't forget to give it 5 stars and leave a comment below! Thanks!

brain is medial to what​

Answers

Answer:

Lateral is from the side; medial is towards the midline (often from a sagittal section); dorsal is looking from above; and ventral is looking from below. Brain Stem: pons, medulla, spinal cord.

Explanation:

Hi! help here thanks

Answers

Answer:

Observations are things that can be directly seen and talked about. Inferences are things that you believe correlate with each other. For instance, the dog wagging its tail must be happy because it is a guess, not a fact. An example of an observation is The girl is wearing a blue shirt with white straps because you can directly see it.

Compare types of models. Which model of the human digestive system is most detailed?

A. Photograph of digestive system
B. Dissected pig
C. Artist drawing
D. 2D computer-generated model

Answers

The model of the Human digestive system that is most detailed is ( B ) : Dissected Pig

Pigs and Human have similar internal organs and the locations of each organ in both mammals are similar as well, therefore from the options the closest model that is most detailed as regards to the Human digestive system is a dissected pig.

A photograph of the digestive system does not provide a detailed model, also an artist drawing cannot provide as much detail as needed.  A 2d computer-generated model will only present the digestive system in 2 dimensions hence it is not detailed enough as well.

Hence the most detailed model is a Dissected pig model.

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A monomer is to a polymer, like a____? A) word is to a sentence B) Lego block is to a Lego castle C) tree is to a forest D) All of the above
Please help I'm taking a test

Answers

D all of the above. A monomer is simply a part of the total thing, being a polymer.

A monomer is a polymer like a word is to a sentence, a Lego block is to a Lego castle, and a tree is to a forest. The correct option is D) All of the above.

What are polymers?

Polymers are chains of monomers. Many monomers join together to form polymers. Monomers are single units of something. Now many polymers are made up of the same types of monomers, they are called homopolymers.

Herteropolymers are those polymers that are made up of different units of monomers. A group of words makes a sentence. Lego is a piece of plastic block that made a Lego castle or other things. Trees are the monomers unit of a forest because many trees made a forest. So all these are equivalent to what a monomer is to a polymer.

Thus, the correct option is D) All of the above.

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