The four bases of DNA are Adenine, Guanine, Cytosine and Thymine. How many kinds of rungs are there on a DNA ladder?
Four
Six
Two
Eight

Answers

Answer 1

Four

The rungs of the DNA ladder made of four types of nitrogenous bases. These are Adenine (A), Guanine (G), Cytosine (C) and Thymine (T).


Related Questions

Which female organ sheds its lining through menstruation?.

Answers

Answer:

Menstruation is one part of a person's menstrual cycle which includes the shedding of the endometrium (lining of the uterus) that occurs throughout a person's reproductive life.

Question 4 of 10
Which of the following is an example of imperialism?
A. A country begins trading with other countries.
B. A country conquers its neighboring countries.
C. A country adopts the cultural practices of other countries.
O
D. A country refuses to have diplomatic relations with other
countries.
SUBMITsumbit

Answers

Imperialism is basically just giving a country more power and building a stronger military.

I would connect this with B, i’m pretty sure.

When you donate blood, you give around one pint. How much blood do you have in your body to start with?.

Answers

We have about  1.2-1.5 gallons of blood in our body as adults in this case.

What is Blood?

This is the major fluid in the circulatory system which helps in the transport of essential substances such as nutrients etc.

One pint of blood is approximately around 10 percent of the blood we have in our body.

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How many hepatitis b vaccinations should you get in order to be fully immunized?.

Answers

Answer:

2 or 3

Explanation:

I believe it's 3, I could be wrong though.

what type of feedback is the previous question?

Answers

Negative feedback – corrective comments about past behaviour. Positive feedback – affirming comments about past behaviour. Negative feed-forward – corrective comments about future performance. Positive feed-forward – affirming comments about future behaviour

Humans need oxygen to be able to perform cellular respiration and gain ATP energy for our cells. What would happen to the oxygen levels on Earth if photosynthesis stopped

Answers

Oxygen would slowly deplete into carbon dioxide as there is no photosynthesis to create more. Earth would not be able to support human life later on.


A mixture is...


A) 2 or more different elements
joined together

B) An atom

C) Made up of one type of atom

D) 2 or more different elements
not chemically bonded together Parkanones SLP Open-minded Enquiring

Answers

Answer:

the answer is B correct me if I'm wrong!

Although the females glow at night and are easily seen by predators, they have few enemies. state one characteristic that protects them from predators.

Answers

The one characteristic that protects females from their predators during the night is to hide in such a dark place where predators can not be easily identified. It helps in escaping from predators by hiding their glow.

What is Predator?

The predator may be defined as any organism that kills or hunt other organisms (prey) for the fulfillment of their need.

The above-mentioned strategy assists the female to hide their extreme glow during the night and successfully escape from predators.

Therefore, it is well described above.

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describe how carbohydrates are transported from the leaves to the roots?

Answers


Carbohydrates are mainly transported in the phloem in the form of sucrose. The cell membrane of the sieve cells contains pump proteins that actively convey sucrose into the vascular pathways.

4. In the "Assault on the Male" video, how do environmental estrogens "trick" cells by
attaching to cell membranes? How are these environmental estrogens able to attach to cell
membranes? What happens in a cell when this happens?

Answers

Estrogens are hormones that are play important roles in the reproductive system.

What are the roles played by estrogen?

The environmental estrogen introduced to the male cells has the ability to recognise the binding sites of the receptors on the male cells.

They are able to attach the the cell membranes by its ability to bind to the cell receptors.

When the binding occurs, there would be a conformational change within the cell leading to:

modulation of protein synthesis and

development of the female secondary reproductive characteristics.

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Sensory specific satiety overrides dietary homeostasis because it;

Answers

Nutritional homeostasis is a basic biological process to balance food intake with energy expenditure. Sensory specific satiety overrides dietary homeostasis because it allows dishabituation of novel food to stimuli.

What is homeostasis?

A self-regulating process by which biological systems maintain stability while adjusting to changing external conditions is referred to as homeostasis.

Nutritional homeostasis is a basic biological process to balance food intake with energy expenditure.

Sensory specific satiety overrides dietary homeostasis because it allows dishabituation of novel food to stimuli.

Thus, because of this, sensory-specific satiety overrides dietary homeostasis.

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A sod grower whose client has requested a (blank) nearly 18 months from sowing to harvest.
growth variety of grass must calculate that it will be

Answers

A grass grower whose customer requested a lawn that is nearly 18 months old from sowing to harvesting. Grass growing variety should calculate that it will be 1 year and 6 months.

How is grass growing?

Grass boards should be lined up side by side so that they root and grow evenly.the importance of irrigation. “Right after planting, it is necessary to irrigate the area of ​​grass planted well”, in this way, the grass will settle in the soil and grow beautiful and green.

With this information, we can conclude that a grass grower whose customer requested a lawn that is nearly 18 months old from sowing to harvesting. Grass growing variety should calculate that it will be 1 year and 6 months.

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What makes chlorophyll on a plant??

Answers

Answer:

Chloroplasts

Explanation:

Chlorophyll is produced in chloroplasts in the photosynthetic tissues of the leaf.

Cornell University recently conducted a study that estimated that honeybees pollinate more than $14 billion worth of crops each year. The study suggested that nearly seventy-five percent of all global crops that are grown for food, fiber, beverages, condiments, spices, and medicines are pollinated. Produced with the help of pollinators, agricultural products including legumes, vegetables, fruits, berries, nuts, herbs, spices, oils, seeds, grains, clover, and cotton make a significant contribution to the economy. As the human population increases, so does the demand for pollination; sadly, the honeybee population is decreasing. Within the past thirty years, parasites, predators, and disease have weakened both wild and managed populations of honeybees. In fact, around the globe, honeybees are being decimated by an epidemic known as colony collapse disorder (CCD).

According to this article, who collected information to research the honeybees?

Answers

Answer:

Cornell University collected the information used to research the honeybees.

Cornell university obtained the information from the honey bees.

what characteristics make pteridophyta different from seed bearing plants​

Answers

Differences Between Pteridophytes and Seed Plants

Pteridophytes don't produce cones, flowers, or fruit, unlike these seed plants. Instead, Pteridophytes produce spores. Spores are living, single-celled structures that are essential to the life cycle of many plants.

(hope this helps ✌)

[BWS.02]An idea is considered scientific after it has been
O tested
O published
O proposed
O popularized

Answers

I would say tested anything scientific comes w a hypothesis and gets tested.

Royale has been undeclared as a national park and has been purchased by a large resort. Describe one positive and one negative impact on the Isle Royale ecosystem

Answers

The adverse impact of this approach to the national park is that biodiversity cease to exist there. Its possible positive impact is the fact that we could have some organisms moving to new areas.

What is an ecosystem?

An ecosystem is a functional unit that is composed of living and non living parts.

The positive impact of this fact that the Royale is no longer a national park is that species can migrate to new areas while the negative impact of this action is that there may be loss of biodiversity.

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6. Which type of ice is responsible for sea level rise? *
Sea Ice
O Land Ice
Both
O None of the Above

Answers

Answer:

Sea Ice

Explanation:

Communities within ecosystems are established through the process of ____.

a. commensalism

b. parasitism

c. succession

d. symbiosis

Answers

Answer:

D

Explanation:

Answer is D 100% good luck

Which of the following likely results from urbanization? (4 points)
Expansion of forests
Decreased farmland
Decreased transportation
Increased electricity use

Answers

The option that is likely to result from urbanization is decreased farmland. Details about urbanization can be found below.

What is urbanization?

Urbanization is the process of the formation and growth of cities and usually involves change in a country or region when its population migrates from rural to urban areas.

Urbanization usually occurs when people of a region move to another region in search of better opportunities.

However, urbanization will likely result to a decrease of farmland and agricultural practices.

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Whether the effect of a neurotransmitter is excitatory or inhibitory depends on.

Answers

Whether the effect of a neurotransmitter is excitatory or inhibitory depends on the receptor it binds to.

What is Neurotransmitter?

A neurotransmitter may be defined as the chemical substances present within the synaptic vesicles and transmitting the impulse through synapses.  

Examples of excitatory neurotransmitters are glutamate, norepinephrine, epinephrine, etc. Such neurotransmitters promote the electrical impulse and allow the passage of messages.

Examples of inhibitory neurotransmitters are serotonin, glycine, GABA, etc. Such neurotransmitters inhibit the passage of electrical impulses and block information.

Therefore, it is well described above.

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Challenge: baking powder is a combination of three substances. one is an acid salt, and the other two are
other "known" substances in the gizmo. what are these two substances?

Answers

Acid powder and sodium bicarbonate are combined to make baking powder (like cream of tartar). It only requires moisture and heat to activate because it already contains an acid.

What are the characteristics of baking soda?

Cornstarch, baking soda, and cream of tartar are the three components. Describe the actions taken by two of these three “active components” in baking powder when water is added to produce bubbles.

When the two active substances are combined with water, a chemical reaction occurs, resulting in the creation of a gas. It is frequently employed in recipes that don't call for the addition of an acidic component.

When wet in a dough or batter, a chemical process takes place that results in carbon dioxide gas and inflates cookies, cakes, and pancakes.

Therefore, baking soda and starch are these two substances.

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What is scientific learning?​

Answers

Answer:

Scientific literacy means that a person can ask, find, or determine answers to questions derived from curiosity about everyday experiences. It means that a person has the ability to describe, explain, and predict natural phenomena.

Scientific learning is the ability to ask, find, or determine answers to questions arising from everyday experiences. It denotes the ability to describe, explain, and forecast natural phenomena.

Because they create multiple alleles, mutations can cause

A. cell division.
B. damaged DNA to repair itself.
C. overproduction of offspring.
D. variations in traits.

Answers

Because they create multiple alleles, mutations can cause D. variations in traits.

Gene mutations and evolution

The production of mutations in DNA molecules is known as mutagenesis. Changes in DNA sequence or chromosome rearrangement are just two examples of mutations that can occur in DNA. These mutations can happen on their own, as a result of mistakes made during DNA replication or mitosis. Natural selection requires genetic variety, which is produced by spontaneous mutations.

The process by which populations of organisms change over generations is known as evolution. These modifications are caused by genetic differences. Different features in an organism can be introduced by genetic differences that modify gene activity or protein function. If a characteristic is beneficial and helps an individual survive and reproduce, it is more likely to be handed down to the following generation (a process known as natural selection).

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which part of earth belongs to the geoshpere

Answers

Answer:

In modern texts and in Earth system science, geosphere refers to the solid parts of the Earth; it is used along with atmosphere, hydrosphere, and biosphere to describe the systems of the Earth(the interaction of these systems with the magnetosphere is sometimes listed). i.e the earth's interior ok

Explanation:

Which statement about DNA replication is true?

Answers

Explanation:

So, the correct answer is 'DNA replication begins at the promoter'.


The map below shows the locations of what type of boundary

Answers

Answer:

D

Explanation:

100% it has too be if not oh well, put more

One species of pufferfish puts on a
display for a mate and another species
doesn't like it. this is an example of
what?

Answers

The display of one species that causes the dislike for another species is an example of competition. Details about competition can be found below.

What is competition?

Competition in biology is a negative relationship between two or more organisms that leads to the death or injury of involved parties.

Living organisms compete for the following reasons:

FoodMateSpace

According to this question, one species of pufferfish puts on a display for a mate and another species doesn't like it. This indicates that the species of putterfish are involved in a competition.

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Answer:

Explanation: behavioral barrier

What is one reason water can remain in the liquid state on Earth?
A. Earth's atmosphere is deep enough to allow water to cycle through
its solid, gas, and liquid states.
OB. Earth's surface is continually bombarded by comets, which add
liquid water.
OC. Earth's distance from the sun keeps the temperature just right for
liquid water to exist.
OD. Earth's atmosphere is warm enough to prevent water vapor from
condensing.
SUBMIT

Answers

Answer:

c

Explanation:

water boils at 100 degrees Celcius and freezes at zero degrees Celcius. if you want to keep water in a liquid phase, the temperature has to be between 0 and 100 therefore earth is the only planet that is able to keep water in a liquid phase as it is not too hot nor too cold

aye yo Bueno
its layhej5 were u at

Answers

No where are you at young man
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