A genetic engineer wants to isolate a gene from a scorpion that encodes the deadly toxin found in its stinger, with the ultimate purpose of transferring this gene to bacteria and producing the toxin for use as a commercial pesticide. Isolating the gene requires a DNA library. Should the genetic engineer create a genomic library or a cDNA library

Answers

Answer 1

Answer:

The correct answer is - Yes, the genetic engineer should create a genomic library or a cDNA library.

Explanation:

mRNA isolated from the toxin extracted from the venom gland of the scorpion to create a cDNA library. The cDNA sequence is reverse transcribed by the mRNA that lacks the introns as prokaryotic organisms such as bacteria cannot splice introns.

If the engineer wants to express the toxin in bacteria then he required a cDNA sequence as a genomic clone can not use to clone for making proteins.  mRNA should be isolated from the venom gland so it can synthesize cDNA library enriched with toxin protein sequence.


Related Questions

What is this organelle?

Answers

Answer:

It's the mitochondria

Explanation:

The mitochondria is the powerhouse of the cell.

which lymphoid organs atrophies with age???????
a)Peyer patches
b)Thymus
c)Bone marrow
d)Spleen


answer plz (╯︵╰,)​

Answers

The correct answer is Answer is B

Because The thymus is a primary lymphoid organ responsible for the production of immunocompetent T cells and, with aging, it atrophies and declines in functions.

Some cells live for years, while others live for only a few days. Why do some cells get replaced faster than others?

Answers

Answer:

Some cells don't divide and last you a life time such as many of those in the central nervous system other cells such as stems called cell populations have their telemeres repeatedly extended by the enzyme telomerase other cells are never replaced and live as long as we do .

I hope this answer might help u

22)
The Master answered, "Never fail to comply."
Fan Ch'ih was driving. The Master told him about the interview, saying, "Meng-sun asked me about being filial. I answered,
"Never fail to comply."
Fan Ch'in asked, What does that mean?
The Master said, When your parents are alive, comply with the rites in serving them; when they die, comply with the rites in
burying them; comply with the rites in sacrificing to them.'
Analects II, 5
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Which principle of Confucianism does this support?
A)
Virtue
B)
Social Order
Mandate of Heaven
D)
Ancestor Veneration
23)
The start of the Korean War in 195

Answers

Answer:

D

Explanation:

Whare does digestion of starch begins?​

Answers

Answer:

Mouth

Explanation:

The saliva supplies moisture, carbohydrate-digesting enzyme and amylase.

Most of the oxygen in the atmosphere is made by algae. Where do most of the algae live?
coastal ocean
deep ocean
ponds
lakes

Answers

Coastal Ocean!

Explanation: It’s important to remember that although the ocean produces at least 50 percent of the oxygen on Earth, roughly the same amount is consumed by marine life. Like animals on land, marine animals use oxygen to breathe, and both plants and animals use oxygen for cellular respiration. Oxygen is also consumed when dead plants and animals decay in the ocean.

This is particularly problematic when algal blooms die and the decomposition process uses oxygen faster than it can be replenished. This can create areas of extremely low oxygen concentrations, or hypoxia. These areas are often called dead zones, because the oxygen levels are too low to support most marine life.

NOAA’s National Centers for Coastal Ocean Science conducts extensive research and forecasting on algal blooms and hypoxia to lessen the harm done to the ocean ecosystem and human environment.

Most of the oxygen in the atmosphere is made by algae, with coastal oceans housing the majority of algae. Hence the correct option is A.

What is Algae?

Algae is defined as a member of a group of primarily aquatic photosynthetic organisms of the Protista kingdom. Algae is described as floating green matter on the surface of a pond, lake, river, still water, moist soil, stones that grow on wet surfaces. Therefore, they can synthesize their own food. They are found in water or in very moist places.

Algae play many important and beneficial roles in freshwater environments producing oxygen and consuming carbon dioxide that act as the base of the aquatic food chain, removing nutrients and pollutants from the water and stabilize sediments. Most of the oxygen in the atmosphere is made by algae, with coastal oceans housing the majority of algae.

Hence the correct option is A.

Learn more about Algae, here:

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The cardiovascular system is composed of two circulatory paths: pulmonary circulation and systemic circulation.
Pulmonary circulation transports deoxygenated blood from the right side of the heart to the



A. left side of the heart where it is pumped to the lungs for oxygenation

B. lungs where blood picks up oxygen and returns to the left side of the heart

C. lungs where blood picks up oxygen and returns to the right side of the heart

D. lungs where the blood picks up oxygen and transports it to the tissues of the body

Answers

Answer:

B. lungs where blood picks up oxygen and returns to the left side of the heart.

Explanation:

In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.

Generally, the cardiac cycle occurs in two (2) stages;

1. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.

2. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.

The cardiovascular system comprises of two circulatory paths:

I. Pulmonary circulation.

II. Systemic circulation.

Pulmonary circulation transports deoxygenated blood from the right side of the heart to the lungs where blood picks up oxygen and returns to the left side of the heart.

The pulmonary circulation loop is mainly supported (powered) by the right atrium and right ventricle.

Additionally, the right atrioventricular valve (AV) also referred to as the tricuspid valve is located on the right dorsal side of the human heart. The right atrioventricular valve (AV) comprises of three (3) leaflets (flaps) which opens and closes in order to allow for the flow of blood from the right atrium of the human heart to the right ventricle. Also, the right atrioventricular valve is saddled with the responsibility of preventing blood from flowing backward in the mammalian heart.

In cellular respiration, the energy for most ATP synthesis is supplied by:


A. High energy phosphate bonds in organic molecules


B. A proton gradient across a membrane


C. Converting oxygen to atp


D. Transferring electrons from organic molecules to pyruvate


E. Generating carbon dioxide and oxygen in the electron transport chain

Answers

Answer:

B. A proton gradient across a membrane.

Explanation:

Cellular respiration can be defined as a series of metabolic reactions that typically occur in cells so as to produce energy in the form of adenosine triphosphate (ATP). During cellular respiration, high energy intermediates are created that can then be oxidized to make adenosine triphosphate (ATP). Therefore, the intermediary products are produced at the glycolysis and citric acid cycle stage.

Additionally, mitochondria provides all the energy required in the cell by transforming energy forms through series of chemical reactions; breaking down of glucose into Adenosine Triphosphate (ATP) used for providing energy for cellular activities in the body of living organisms.

Basically, oxygen goes into the body of a living organism such as plants, humans and animals when they breathe while glucose is absorbed by the body when they eat.

In cellular respiration, the energy for most ATP synthesis is supplied by proton gradient across a membrane.

This ultimately implies that, most adenosine triphosphate (ATP) is formed due to the net movement of protons against a concentration gradient in the electron transport chain.

what's the function of the lungs​

Answers

Answer:

correct

Explanation:

Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system's main job is to move fresh air into your body while removing waste gases.

Which statement is true based on the data in the table?
A. The United States uses more land to grow crops than to maintain forests
B. The United States uses more land for parks and wildlife than for forests
C. The United States uses more land for parks and forests than for urban areas.
D. The United States uses more land for urban areas than for grasslands and ranges​

Answers

Answer:

C. The United States uses more land for parks and forests than for urban areas.

Explanation:

According to the given data, the size of land used for parks and forests in United States is 313 million acres. The land used for urban areas is 61 million acres. This data here presents a comparative detail of the size of land and the purpose it is used for.  

The maximum land used by United States is for forest area and grass range. This depicts that more stress is levied on keeping the land green.

Answer:

C.

Explanation:

Person above is right.

Select the correct answer.
Lily feels tired and weak in the evenings after work. Before starting her chores, she eats dinner. Which characteristic of life does Lily exhibit?
A.
growth
B.
need for energy
C.
organization
D.
regulation

Answers

i would say need for engery? because when you work a lot, you need that engery. she regains it by eating dinner then wasting more energy on chores. brainliest?

Select the correct answer.
Who do we consider to be the founder of genetics?

Answers

Answer:

C: Gregor Mandel

PLEASE HELP ASAP!!!
What is one example of an index fossil?
1. a rock
2. a tooth
3. a trilobite
4. a meteor

Answers

The answer is a rock !!!!

Answer: #1. A Rock

Definition: A fossil that is useful for dating and correlating the strata in which it is found.

Note: Hope this helps answer is from Acceleration Education / Buzz.

All My Other Answers:

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Which best describes a method of obtaining energy that may cause changes in
water temperature and harm to fish populations?
A burning coal
B using ethanol in cars
C installing solar panels on a home
D generating electricity in a hydroelectric power plant

Group of answer choices

Answers

Answer:

D. generating electricity in a hydroelectric power plant.

Explanation:

Renewable energy is also known as clean energy and it can be defined as a type of energy that are generated through natural sources or technology-based processes that are replenished constantly. Some examples of these natural sources are water (hydropower), wind (wind energy), sun (solar power), geothermal, biomass, waves etc.

Basically, a renewable energy source is sustainable and as such can not be exhausted.

Generating electricity in a hydroelectric power plant best describes a method of obtaining energy which may cause changes in water temperature and harm to fish populations. This is due to the operation of powerful electric steam turbines operating at high voltage.

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